Eddie Sanders

Rickyisms 3/4/2020 8:38pm
3/4/2020 8:38pm
I hope Eddie is paying you well.
1
SDTony YZ ESR 325 3/5/2020 5:45pm
3/5/2020 5:45pm
Rickyisms wrote:
I hope Eddie is paying you well.
I don't get a Dime.

My Purpose:
Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't need bigger)

Lightweight 300/325 cc 2-Strokes are the ANSWER for 75% of the Riders who need inexpensive MX/SX/Off-Road Motorcycles. Athena, ESR, LA Sleeve, Tom Morgan, Eric Gorr all have a Big Bore Kits that work, some better than others.

But ESR's Cylinder Kit (ESR 325 CEO kit (Mike Alessi) WON the Monster Energy Cup (MEC, LCQ), finished 19th overall), is the BEST VALUE for the Money!

----------------In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!------------------------------------------------------

Just to offer Options:

-Eric Gorr uses your Cylinder to Big Bore to 293 cc, ($660), Torque slightly less than an ESR 325 (HP Kick in last 2K RPM)

-Athena 293 cc Cylinder Kit: ($1,189) - Won the 2-Stroke Nationals, great Kit, not as much Torques slightly less than an ESR 325

-LA Sleeve ($1,170) 300 cc uses your Cylinder - Good Kit according to MX Action tested, Torque slightly less than an ESR 325

-Tom Morgan 315 cc Bored and Stroked (Est. $2,100) - Raced at Red Bull Straight Rhythm

-ESR 325 CEO Kit $799 or Std Kit $599 - Bolt on Smaller Jest 165 & 42, Hole Shot and WON the Monster Energy Cup LCQ - 19th Overall

There are you other options.

I have looked at all of them and ESR in my mind, has the BEST Value!
Hudd_421
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Hudd_421 3/6/2020 8:32am
3/6/2020 8:32am
"In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!"

This tells me you are too lazy to shift or have poor technique
2
Zerofear66
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Zerofear66 3/6/2020 9:25am
3/6/2020 9:25am
Hudd_421 wrote:
"In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!" This tells...
"In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!"

This tells me you are too lazy to shift or have poor technique
I'm too lazy to shift
I have poor technique
And I'm old
😃
1

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DynoDan22
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DynoDan22 3/6/2020 9:26am
3/6/2020 9:26am
I'm 200lbs and a 250 smoker can still light my ass up. I've never stretched the throttle cable wishing for more ponies. But maybe I'm slow. Lol
1
Tuna
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Tuna 3/6/2020 10:01am
3/6/2020 10:01am
Rickyisms wrote:
I hope Eddie is paying you well.
SDTony YZ ESR 325 wrote:
I don't get a Dime. My Purpose: Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't...
I don't get a Dime.

My Purpose:
Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't need bigger)

Lightweight 300/325 cc 2-Strokes are the ANSWER for 75% of the Riders who need inexpensive MX/SX/Off-Road Motorcycles. Athena, ESR, LA Sleeve, Tom Morgan, Eric Gorr all have a Big Bore Kits that work, some better than others.

But ESR's Cylinder Kit (ESR 325 CEO kit (Mike Alessi) WON the Monster Energy Cup (MEC, LCQ), finished 19th overall), is the BEST VALUE for the Money!

----------------In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!------------------------------------------------------

Just to offer Options:

-Eric Gorr uses your Cylinder to Big Bore to 293 cc, ($660), Torque slightly less than an ESR 325 (HP Kick in last 2K RPM)

-Athena 293 cc Cylinder Kit: ($1,189) - Won the 2-Stroke Nationals, great Kit, not as much Torques slightly less than an ESR 325

-LA Sleeve ($1,170) 300 cc uses your Cylinder - Good Kit according to MX Action tested, Torque slightly less than an ESR 325

-Tom Morgan 315 cc Bored and Stroked (Est. $2,100) - Raced at Red Bull Straight Rhythm

-ESR 325 CEO Kit $799 or Std Kit $599 - Bolt on Smaller Jest 165 & 42, Hole Shot and WON the Monster Energy Cup LCQ - 19th Overall

There are you other options.

I have looked at all of them and ESR in my mind, has the BEST Value!
ESR sales take a 50% dive every time you post.
4
Hudd_421
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Hudd_421 3/6/2020 12:20pm
3/6/2020 12:20pm
hahaha TUNA! Best post here
2
DynoDan22
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DynoDan22 3/6/2020 12:22pm
3/6/2020 12:22pm
Hot Tuna!!!!!!
1
Tuna
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Tuna 3/6/2020 1:48pm
3/6/2020 1:48pm
Hudd_421 wrote:
hahaha TUNA! Best post here
Love your Avi bro..
SDTony YZ ESR 325 3/6/2020 3:17pm
3/6/2020 3:17pm
Hudd_421 wrote:
"In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!" This tells...
"In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!"

This tells me you are too lazy to shift or have poor technique
I use 2nd, 3rd and 4th most of the time, the most fun comes from Whacking the Throttle! Is that not considered enough in your Book?

But the fastest to carry "momentum" is when I stay in 3rd and use Smooth Clutch Action like the 450 guys.
The 325 is way better than a 250 for Off-Road, i am in good shape but older, so .01 Second Change in Lap times means nothing, it's all about FUN!
SDTony YZ ESR 325 3/6/2020 3:23pm
3/6/2020 3:23pm
Rickyisms wrote:
I hope Eddie is paying you well.
SDTony YZ ESR 325 wrote:
I don't get a Dime. My Purpose: Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't...
I don't get a Dime.

My Purpose:
Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't need bigger)

Lightweight 300/325 cc 2-Strokes are the ANSWER for 75% of the Riders who need inexpensive MX/SX/Off-Road Motorcycles. Athena, ESR, LA Sleeve, Tom Morgan, Eric Gorr all have a Big Bore Kits that work, some better than others.

But ESR's Cylinder Kit (ESR 325 CEO kit (Mike Alessi) WON the Monster Energy Cup (MEC, LCQ), finished 19th overall), is the BEST VALUE for the Money!

----------------In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!------------------------------------------------------

Just to offer Options:

-Eric Gorr uses your Cylinder to Big Bore to 293 cc, ($660), Torque slightly less than an ESR 325 (HP Kick in last 2K RPM)

-Athena 293 cc Cylinder Kit: ($1,189) - Won the 2-Stroke Nationals, great Kit, not as much Torques slightly less than an ESR 325

-LA Sleeve ($1,170) 300 cc uses your Cylinder - Good Kit according to MX Action tested, Torque slightly less than an ESR 325

-Tom Morgan 315 cc Bored and Stroked (Est. $2,100) - Raced at Red Bull Straight Rhythm

-ESR 325 CEO Kit $799 or Std Kit $599 - Bolt on Smaller Jest 165 & 42, Hole Shot and WON the Monster Energy Cup LCQ - 19th Overall

There are you other options.

I have looked at all of them and ESR in my mind, has the BEST Value!
Tuna wrote:
ESR sales take a 50% dive every time you post.
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out any facts your opinion means nothing.

Sorry go find a Safe Space if you don't like what you hear, or move to China and Censor people like a good little commy!
1
2
Yz229
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Yz229 3/6/2020 5:58pm
3/6/2020 5:58pm
SDTony YZ ESR 325 wrote:
I don't get a Dime. My Purpose: Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't...
I don't get a Dime.

My Purpose:
Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't need bigger)

Lightweight 300/325 cc 2-Strokes are the ANSWER for 75% of the Riders who need inexpensive MX/SX/Off-Road Motorcycles. Athena, ESR, LA Sleeve, Tom Morgan, Eric Gorr all have a Big Bore Kits that work, some better than others.

But ESR's Cylinder Kit (ESR 325 CEO kit (Mike Alessi) WON the Monster Energy Cup (MEC, LCQ), finished 19th overall), is the BEST VALUE for the Money!

----------------In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!------------------------------------------------------

Just to offer Options:

-Eric Gorr uses your Cylinder to Big Bore to 293 cc, ($660), Torque slightly less than an ESR 325 (HP Kick in last 2K RPM)

-Athena 293 cc Cylinder Kit: ($1,189) - Won the 2-Stroke Nationals, great Kit, not as much Torques slightly less than an ESR 325

-LA Sleeve ($1,170) 300 cc uses your Cylinder - Good Kit according to MX Action tested, Torque slightly less than an ESR 325

-Tom Morgan 315 cc Bored and Stroked (Est. $2,100) - Raced at Red Bull Straight Rhythm

-ESR 325 CEO Kit $799 or Std Kit $599 - Bolt on Smaller Jest 165 & 42, Hole Shot and WON the Monster Energy Cup LCQ - 19th Overall

There are you other options.

I have looked at all of them and ESR in my mind, has the BEST Value!
Tuna wrote:
ESR sales take a 50% dive every time you post.
SDTony YZ ESR 325 wrote:
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out...
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out any facts your opinion means nothing.

Sorry go find a Safe Space if you don't like what you hear, or move to China and Censor people like a good little commy!
One nice thing about TMR is you get everything ALL fresh, new bottom end, professionally assembled by factory mechanic, balanced, ported, bored, stroked, blue printed, clutch mods, etc. Even the carb and reeds are ported.

It's a more cash but it's worth it knowing you have everything fresh and better then OEM. I wonder how many people are throwing ESR cylinders on trashed bottom ends. Not only that, Tom is great and will answer all your questions. I almost went ESR before TMR, but it was difficult getting a hold of anyone.
slipdog
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slipdog 3/6/2020 7:01pm
3/6/2020 7:01pm
Tuna wrote:
ESR sales take a 50% dive every time you post.
SDTony YZ ESR 325 wrote:
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out...
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out any facts your opinion means nothing.

Sorry go find a Safe Space if you don't like what you hear, or move to China and Censor people like a good little commy!
Yz229 wrote:
One nice thing about TMR is you get everything ALL fresh, new bottom end, professionally assembled by factory mechanic, balanced, ported, bored, stroked, blue printed, clutch...
One nice thing about TMR is you get everything ALL fresh, new bottom end, professionally assembled by factory mechanic, balanced, ported, bored, stroked, blue printed, clutch mods, etc. Even the carb and reeds are ported.

It's a more cash but it's worth it knowing you have everything fresh and better then OEM. I wonder how many people are throwing ESR cylinders on trashed bottom ends. Not only that, Tom is great and will answer all your questions. I almost went ESR before TMR, but it was difficult getting a hold of anyone.
I had an ESR kit come to me for porting. New out of the box the casting was horrible so I see why they wanted it ported. When I began to piece it together I found the sleeve wasn't pressed in correctly. It was raised several mm above the top of the cylinder and wouldn't allow the head to compress against the o-rings.

Multiple calls unanswered, messages never returned and no emails were responded to. All of those things combined were all I ever needed to know about ESR....
1
cwtoyota
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cwtoyota 3/7/2020 12:57am
3/7/2020 12:57am
Zerofear66 wrote:
Great input. Appreciate it. Anyone have any experience with the Eric Gorr kit?
I'm curious how they compare/contrast.
TIA
Gorr sucks to deal with about 50% of the time.

I have a 295 kit that I bought about ten years ago and put maybe 15 hours on. Zero problems, plenty of holeshots and I enjoyed racing with it. It is sitting in a box here in my shop because I refuse to buy pistons or parts after the guy completely hosed my buddy's 144 cylinder.

Honestly, outside of my displeasure of seeing my buddy get screwed out of a good casting and $500 plus about six months of time I can be unbiased about the 295 mid/top cylinder...

The Gorr kit ran pretty well upstairs as he really did a lot of work on the ports and head. It pulled a couple teeth smaller rear sprocket, but I've found that I ride the 250 a lot faster around the track.

For what you want, just throw a Bills pipe or a Dubach DRD pipe on the YZ250 with a VF3 reed and a modified head. Run the longest silencer you can and get the jetting dialed in. If you need more, buy a 450F, or buy a 500.
Tuna
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Tuna 3/7/2020 4:41am
3/7/2020 4:41am
SDTony YZ ESR 325 wrote:
I don't get a Dime. My Purpose: Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't...
I don't get a Dime.

My Purpose:
Is to promote available Big Bores, 300 or 325. I wish a 350 or 400cc was available (Probably don't need bigger)

Lightweight 300/325 cc 2-Strokes are the ANSWER for 75% of the Riders who need inexpensive MX/SX/Off-Road Motorcycles. Athena, ESR, LA Sleeve, Tom Morgan, Eric Gorr all have a Big Bore Kits that work, some better than others.

But ESR's Cylinder Kit (ESR 325 CEO kit (Mike Alessi) WON the Monster Energy Cup (MEC, LCQ), finished 19th overall), is the BEST VALUE for the Money!

----------------In my mind a 250 is to SMALL for most of us, not enough Torque on the Bottom There is no replacement for Displacement!------------------------------------------------------

Just to offer Options:

-Eric Gorr uses your Cylinder to Big Bore to 293 cc, ($660), Torque slightly less than an ESR 325 (HP Kick in last 2K RPM)

-Athena 293 cc Cylinder Kit: ($1,189) - Won the 2-Stroke Nationals, great Kit, not as much Torques slightly less than an ESR 325

-LA Sleeve ($1,170) 300 cc uses your Cylinder - Good Kit according to MX Action tested, Torque slightly less than an ESR 325

-Tom Morgan 315 cc Bored and Stroked (Est. $2,100) - Raced at Red Bull Straight Rhythm

-ESR 325 CEO Kit $799 or Std Kit $599 - Bolt on Smaller Jest 165 & 42, Hole Shot and WON the Monster Energy Cup LCQ - 19th Overall

There are you other options.

I have looked at all of them and ESR in my mind, has the BEST Value!
Tuna wrote:
ESR sales take a 50% dive every time you post.
SDTony YZ ESR 325 wrote:
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out...
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out any facts your opinion means nothing.

Sorry go find a Safe Space if you don't like what you hear, or move to China and Censor people like a good little commy!
You are one weird fucking dude. Tom Morgan and Eric Gorr must be thanking baby Jesus that you are not running their kits.
3
Tuna
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Tuna 3/7/2020 4:47am
3/7/2020 4:47am
Zerofear66 wrote:
Great input. Appreciate it. Anyone have any experience with the Eric Gorr kit?
I'm curious how they compare/contrast.
TIA
cwtoyota wrote:
Gorr sucks to deal with about 50% of the time. I have a 295 kit that I bought about ten years ago and put maybe 15...
Gorr sucks to deal with about 50% of the time.

I have a 295 kit that I bought about ten years ago and put maybe 15 hours on. Zero problems, plenty of holeshots and I enjoyed racing with it. It is sitting in a box here in my shop because I refuse to buy pistons or parts after the guy completely hosed my buddy's 144 cylinder.

Honestly, outside of my displeasure of seeing my buddy get screwed out of a good casting and $500 plus about six months of time I can be unbiased about the 295 mid/top cylinder...

The Gorr kit ran pretty well upstairs as he really did a lot of work on the ports and head. It pulled a couple teeth smaller rear sprocket, but I've found that I ride the 250 a lot faster around the track.

For what you want, just throw a Bills pipe or a Dubach DRD pipe on the YZ250 with a VF3 reed and a modified head. Run the longest silencer you can and get the jetting dialed in. If you need more, buy a 450F, or buy a 500.
I ran a YZ250 with a low to mid port, DEP pipe, V3 reeds and a head with proper squish. Bike ripped. Alternated between shorty and long silencers. Tried a Smart Carb as well. Man that bike ripped hard. Never felt the bike lacked any bottom end.
1
SDTony YZ ESR 325 3/7/2020 7:29am
3/7/2020 7:29am
Tuna wrote:
ESR sales take a 50% dive every time you post.
SDTony YZ ESR 325 wrote:
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out...
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out any facts your opinion means nothing.

Sorry go find a Safe Space if you don't like what you hear, or move to China and Censor people like a good little commy!
Tuna wrote:
You are one weird fucking dude. Tom Morgan and Eric Gorr must be thanking baby Jesus that you are not running their kits.
Once again, you have no Facts, no Sources just " I don't like it! So I don't like a Peaky 250!

You haven't Ridden an ESR 325, so you cannot comprehend that a 300, 325 or Bigger cc Engine upgrade is better than any 250 will ever be. Linear Torque and HP is what it is all about to help make 2-Strokes "Grow thr Market" , which has nose dived because of F...... expensive 4-Strokes.

This is about promoting the Sport not anyone's individual situation!
Tuna
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Tuna 3/7/2020 7:38am
3/7/2020 7:38am
SDTony YZ ESR 325 wrote:
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out...
You have no Facts or Sources, just your opinion. Mike Alessi SPEAKS for itself. Every guy that has ridden my Bike loves it. So with out any facts your opinion means nothing.

Sorry go find a Safe Space if you don't like what you hear, or move to China and Censor people like a good little commy!
Tuna wrote:
You are one weird fucking dude. Tom Morgan and Eric Gorr must be thanking baby Jesus that you are not running their kits.
SDTony YZ ESR 325 wrote:
Once again, you have no Facts, no Sources just " I don't like it! So I don't like a Peaky 250! You haven't Ridden an ESR...
Once again, you have no Facts, no Sources just " I don't like it! So I don't like a Peaky 250!

You haven't Ridden an ESR 325, so you cannot comprehend that a 300, 325 or Bigger cc Engine upgrade is better than any 250 will ever be. Linear Torque and HP is what it is all about to help make 2-Strokes "Grow thr Market" , which has nose dived because of F...... expensive 4-Strokes.

This is about promoting the Sport not anyone's individual situation!
I’ve owned an EG 293 and lots of 300’s. Have a new Husky 300TX. I’m a woods racer. I know all about 300’s😂
I’d bet money I have spent time on more KTM, Husky, Sherco, Beta, Berg and TM big bore smokers than you have. Funny thing is most of my best lap times are on 125’s because I know how to ride a 2 stroke.
And yeah, I still think you are a kook🤦‍♂️
2

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SDTony YZ ESR 325 3/7/2020 8:40am
3/7/2020 8:40am
Tuna wrote:
You are one weird fucking dude. Tom Morgan and Eric Gorr must be thanking baby Jesus that you are not running their kits.
SDTony YZ ESR 325 wrote:
Once again, you have no Facts, no Sources just " I don't like it! So I don't like a Peaky 250! You haven't Ridden an ESR...
Once again, you have no Facts, no Sources just " I don't like it! So I don't like a Peaky 250!

You haven't Ridden an ESR 325, so you cannot comprehend that a 300, 325 or Bigger cc Engine upgrade is better than any 250 will ever be. Linear Torque and HP is what it is all about to help make 2-Strokes "Grow thr Market" , which has nose dived because of F...... expensive 4-Strokes.

This is about promoting the Sport not anyone's individual situation!
Tuna wrote:
I’ve owned an EG 293 and lots of 300’s. Have a new Husky 300TX. I’m a woods racer. I know all about 300’s😂 I’d bet money...
I’ve owned an EG 293 and lots of 300’s. Have a new Husky 300TX. I’m a woods racer. I know all about 300’s😂
I’d bet money I have spent time on more KTM, Husky, Sherco, Beta, Berg and TM big bore smokers than you have. Funny thing is most of my best lap times are on 125’s because I know how to ride a 2 stroke.
And yeah, I still think you are a kook🤦‍♂️
Based on your previous post you had not "stated" any thing about riding 300's, you just "complained".

So GOOD for you! You do know that 300's are a helluva a lot of FUN! I still don't like a 125s or 250s!

So Zerofear66 would not have asked about a 325 if he was not trying to improve his bike. He may not be in the market for a Husky 300 or other 300. He probably has a ---limited amount money--.

ESR provides a BOLT ON $690 - 325 KIT for 250 Honda's, it's for older bikes, it WILL IMPROVE his 250 big time. He might already have a Pipe, Porting and other Mod's, so you don't have a better solution, othen than buy a new bike.

It's a Bolt On with Main Jet dropped from 170 to 165, Pilot from 48 to 42, nothing else changes, it is important to install correctly without any Air Leakage, but my experience is, it is AWESOME FUN!

Zero66 is from Anaheim, if he wants to ride my bike he is welcome anytime! Message me and he can try.

Just trying to promote the 2-Stroke market! You, sounds like your just trying to promote your ego!
























1
Zerofear66
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Zerofear66 3/7/2020 10:42am
3/7/2020 10:42am
Jesus..
This thread went South quick 😆
Thanks to all of you who offered useful input 👍
3
Tuna
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Tuna 3/7/2020 1:09pm
3/7/2020 1:09pm
Zerofear66 wrote:
Jesus..
This thread went South quick 😆
Thanks to all of you who offered useful input 👍
Always does when ESR Tony shows up to the party.
2
Tuna
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Tuna 3/7/2020 1:16pm
3/7/2020 1:16pm
Zerofear66 wrote:
Thanks Kristen, I'm curious because I'm looking to build a low to mid motor with a bit more torque/roll on power.
You would be surprised how much more bottom and mid as well as roll on feel you can get with a good port job on the stock bore. Hard to keep the over rev feel and not have them sign off early with all the 300 kits I’ve ridden on a YZ. Not trying to dissuade you from a 300 kit but my 250 with the mods I listed in a previous post got up and went pretty easily. One of the issues with some of the big bore kits, especially the EG is constantly chasing brass to get where you want. I was playing with so many slides, needles and jets to get where I wanted I ended up going back to the stock cylinder.
Kristen_Valentino 3/8/2020 6:42am
3/8/2020 6:42am
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out with experience on the yz 250, Tuna is right a stock bore 250 is hard to beat when ported correctly, 300's are flat on top, yes the bottom end is a little better, but a 300 kitted yz is not a 300 ktm, and it will never be a 450 or even close, just getting s stock yz dialed in, between cutting head, dialing in jetting and timing, and getting pv working correctly, they run well. I have ridden a few different yz 250s with porting from different tuners, they all had some Benefits, I have two cylinders ported for my yz, they both work good, it's like a stock yz but on steroids, I usually change piston and rings at 40 to 50 hours, stock bore piston is easy to get, they run on 100 octane, everyone has a different opinion, from my experience a stock bore 250 runs very good.
2
Tuna
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Tuna 3/8/2020 8:20am
3/8/2020 8:20am
Kristen_Valentino wrote:
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out...
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out with experience on the yz 250, Tuna is right a stock bore 250 is hard to beat when ported correctly, 300's are flat on top, yes the bottom end is a little better, but a 300 kitted yz is not a 300 ktm, and it will never be a 450 or even close, just getting s stock yz dialed in, between cutting head, dialing in jetting and timing, and getting pv working correctly, they run well. I have ridden a few different yz 250s with porting from different tuners, they all had some Benefits, I have two cylinders ported for my yz, they both work good, it's like a stock yz but on steroids, I usually change piston and rings at 40 to 50 hours, stock bore piston is easy to get, they run on 100 octane, everyone has a different opinion, from my experience a stock bore 250 runs very good.
One of the mods I forgot to mention on my woods racing 250 set up was a different PV spring from Harris Performance. That bike would get on the pipe pretty quick!
H4L
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H4L 3/8/2020 9:01am
3/8/2020 9:01am Edited Date/Time 3/8/2020 9:11am
Kristen_Valentino wrote:
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out...
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out with experience on the yz 250, Tuna is right a stock bore 250 is hard to beat when ported correctly, 300's are flat on top, yes the bottom end is a little better, but a 300 kitted yz is not a 300 ktm, and it will never be a 450 or even close, just getting s stock yz dialed in, between cutting head, dialing in jetting and timing, and getting pv working correctly, they run well. I have ridden a few different yz 250s with porting from different tuners, they all had some Benefits, I have two cylinders ported for my yz, they both work good, it's like a stock yz but on steroids, I usually change piston and rings at 40 to 50 hours, stock bore piston is easy to get, they run on 100 octane, everyone has a different opinion, from my experience a stock bore 250 runs very good.
This has been my experience as well with the YZ250. Most big bores I’ve ridden do have a flat top end feel. It will be a trade off unless you have the engine built with a different stroke to compensate. An 04 model owned with PC cyl. & head mods was the best set up I’ve ran to date.
It did have a better low-mid rpm range with a slight increase in the top end.
I was expecting more up top so I talked to the guy in charge of the engine dept. at the time (05). His response was it’s hard to improve upon the oem cyl. porting specs & engine design.
Have an 06 model I’m currently working with & feel it could use better low end response so I’m going to try different jetting specs. for now.

OP something to consider. The low-mid can be improved upon with mods, but you’ll have to run higher octane fuel.


Forgot to mention I spoke with Eddie a couple of times in the last 3 yrs. & left him a few messages about wanting to buy a 325 ESR kit for the 02-07 CR2. Unfortunately it never happened so I finally gave up. I think he does a lot of the work himself so he’s spread very thin.
Tuna
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Tuna 3/8/2020 9:09am
3/8/2020 9:09am
Kristen_Valentino wrote:
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out...
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out with experience on the yz 250, Tuna is right a stock bore 250 is hard to beat when ported correctly, 300's are flat on top, yes the bottom end is a little better, but a 300 kitted yz is not a 300 ktm, and it will never be a 450 or even close, just getting s stock yz dialed in, between cutting head, dialing in jetting and timing, and getting pv working correctly, they run well. I have ridden a few different yz 250s with porting from different tuners, they all had some Benefits, I have two cylinders ported for my yz, they both work good, it's like a stock yz but on steroids, I usually change piston and rings at 40 to 50 hours, stock bore piston is easy to get, they run on 100 octane, everyone has a different opinion, from my experience a stock bore 250 runs very good.
H4L wrote:
This has been my experience as well with the YZ250. Most big bores I’ve ridden do have a flat top end feel. It will be a...
This has been my experience as well with the YZ250. Most big bores I’ve ridden do have a flat top end feel. It will be a trade off unless you have the engine built with a different stroke to compensate. An 04 model owned with PC cyl. & head mods was the best set up I’ve ran to date.
It did have a better low-mid rpm range with a slight increase in the top end.
I was expecting more up top so I talked to the guy in charge of the engine dept. at the time (05). His response was it’s hard to improve upon the oem cyl. porting specs & engine design.
Have an 06 model I’m currently working with & feel it could use better low end response so I’m going to try different jetting specs. for now.

OP something to consider. The low-mid can be improved upon with mods, but you’ll have to run higher octane fuel.


Forgot to mention I spoke with Eddie a couple of times in the last 3 yrs. & left him a few messages about wanting to buy a 325 ESR kit for the 02-07 CR2. Unfortunately it never happened so I finally gave up. I think he does a lot of the work himself so he’s spread very thin.
#8 slide, different PV spring and a properly cut head are fairly cheap mods.
1
H4L
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H4L 3/8/2020 9:14am
3/8/2020 9:14am
Tuna wrote:
#8 slide, different PV spring and a properly cut head are fairly cheap mods.
Thnxz Tuna. Good info..
1
Zerofear66
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Zerofear66 3/8/2020 10:23am
3/8/2020 10:23am
Kristen_Valentino wrote:
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out...
If I had to do it over again I would not have went the with a 300 cylinder, there is a lot of good tuners out with experience on the yz 250, Tuna is right a stock bore 250 is hard to beat when ported correctly, 300's are flat on top, yes the bottom end is a little better, but a 300 kitted yz is not a 300 ktm, and it will never be a 450 or even close, just getting s stock yz dialed in, between cutting head, dialing in jetting and timing, and getting pv working correctly, they run well. I have ridden a few different yz 250s with porting from different tuners, they all had some Benefits, I have two cylinders ported for my yz, they both work good, it's like a stock yz but on steroids, I usually change piston and rings at 40 to 50 hours, stock bore piston is easy to get, they run on 100 octane, everyone has a different opinion, from my experience a stock bore 250 runs very good.
H4L wrote:
This has been my experience as well with the YZ250. Most big bores I’ve ridden do have a flat top end feel. It will be a...
This has been my experience as well with the YZ250. Most big bores I’ve ridden do have a flat top end feel. It will be a trade off unless you have the engine built with a different stroke to compensate. An 04 model owned with PC cyl. & head mods was the best set up I’ve ran to date.
It did have a better low-mid rpm range with a slight increase in the top end.
I was expecting more up top so I talked to the guy in charge of the engine dept. at the time (05). His response was it’s hard to improve upon the oem cyl. porting specs & engine design.
Have an 06 model I’m currently working with & feel it could use better low end response so I’m going to try different jetting specs. for now.

OP something to consider. The low-mid can be improved upon with mods, but you’ll have to run higher octane fuel.


Forgot to mention I spoke with Eddie a couple of times in the last 3 yrs. & left him a few messages about wanting to buy a 325 ESR kit for the 02-07 CR2. Unfortunately it never happened so I finally gave up. I think he does a lot of the work himself so he’s spread very thin.
Great info, thank you. Eddie got back to me pretty quick. I'm really looking for some nice low end grunt with a solid midrange punch. I'll give the ESR kit a go. Im planning on using a DEP pipe, BUDs racing CF can, VF reeds, 9 oz FWW. Should be at the very least fun.
1
H4L
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H4L 3/8/2020 10:57am
3/8/2020 10:57am Edited Date/Time 3/8/2020 11:18am
Zerofear66 wrote:
Great info, thank you. Eddie got back to me pretty quick. I'm really looking for some nice low end grunt with a solid midrange punch. I'll...
Great info, thank you. Eddie got back to me pretty quick. I'm really looking for some nice low end grunt with a solid midrange punch. I'll give the ESR kit a go. Im planning on using a DEP pipe, BUDs racing CF can, VF reeds, 9 oz FWW. Should be at the very least fun.
I believe you can run his 325 kit on good pump fuel ?

Talked to SDTony ESR about a yr. ago over the phone & he had some good feed back on the kit. I know he gets a lot of crap on this forum, but he is just another moto guy like most of us on here. With the exception of the TMZ gang..
Zerofear66
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Zerofear66 3/8/2020 11:17am
3/8/2020 11:17am
Zerofear66 wrote:
Great info, thank you. Eddie got back to me pretty quick. I'm really looking for some nice low end grunt with a solid midrange punch. I'll...
Great info, thank you. Eddie got back to me pretty quick. I'm really looking for some nice low end grunt with a solid midrange punch. I'll give the ESR kit a go. Im planning on using a DEP pipe, BUDs racing CF can, VF reeds, 9 oz FWW. Should be at the very least fun.
H4L wrote:
I believe you can run his 325 kit on good pump fuel ? Talked to SDTony ESR about a yr. ago over the phone & he...
I believe you can run his 325 kit on good pump fuel ?

Talked to SDTony ESR about a yr. ago over the phone & he had some good feed back on the kit. I know he gets a lot of crap on this forum, but he is just another moto guy like most of us on here. With the exception of the TMZ gang..
I'm going to run 50/50 100 Sunoco with premium.
1

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