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The Shop
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Luxon 4-Post Bar Mounts
$189.95 - $239.95
MX Tracks, torque out of the turn, nice linear power band (easier to ride), stronger than a 250 could ever hope to be!
By the way, I SOLD the 250 Cylinder, it's obsolete! I will never ride a 250 again, not enough Torque! An ESR 325 has has around 32/33 Foot LBS, similar to a 450 but not as broad of a power band. But it beats a 250 everywhere!
Yamaha YZ Eddie Sanders Racing (ESR) 325 Build (2007)
Purpose - Motocross and Off Road rider – Intermediate Level (not expert)
-Eddie Sanders Racing (ESR 325 - S7 (Woods Porting), Race Gas Dome (use 50 Pump/50 Race Fuel) --($900)--
https://www.eddie-sanders-racing.com/product-p/yz250-325-big-bore-kit.h… (Looks to be discounted $730)
5 Overbore Pistons to buy, 50 Hours each, 10 rides a year, is about 5 years for weekend riders. No Nikasil, if there was add $350 to the price.
-No - Fly Wheel Weight - None
-Race Tech Suspension ($600) (Came with the bike when I bought it used)
-Moto Tassinari Reed Valve ($250)
-Rekluse Clutch - Core EXP 2.0 ($900)
-ESR ------------------------------------- Expansion Chamber ($200)
-FMF Q Silencer ($100)
-Vortex Ignition ($250) (Came with the bike when I bought it used)
-Dunlop MX 3S 90/21 Front, MX 33 Rear - 120/19
-TU-BLISS -Traction Control System ($200 Total)
-Geared 14 – 48 (Renthal Twin Ring)
-Jetting 165 Main, 42 Pilot (Works in 500” to 4,000’ Altitude)
$3,500 Used 2007 YZ 250 plus $3,450 Performance Parts = Est. $6,950
NEW Technology:
Capturing Efficiency Optimized = CEO $930
I would bet it's better than mine but I do not have one. I bet this is what 2nd. overall - Carlen Gardner (805) rode. He won the 2nd race, finished 3rd. in the first race.
https://www.eddie-sanders-racing.com/product-p/yz325.ceo.cylinder.kit-…
Bottom Line:
There is no Replacement for Displacement!!!
I bought it for $1500, rebuilt the entire motor with a new stock cylinder for $1000 and put $500 of misc stuff like graphics, 2015 plastic kit and 07 yz clamps. Just bought an FMF pipe and shorty silencer today for $200. I’m into mine half the money you are and I’m just as excited about mine and you are about yours. It’s what I like and what I was looking for in a YZ250.
We all like something different from our bikes, but saying that a stock 250 is obsolete? Get out of here, bro. You might not like it, but I do. So does JM485 but he prefers his with a flywheel weight. I know what I like in my bike, you and Josh probably wouldn’t like at all. Just like with yours. And looking at Derrick’s dyno numbers and the way the power is made on a Mod 250 vs the ESR 325, I’d take the mod 250 every day of the week. Just like you’d take the ESR 325.
I am older and less Cat like on the bike. i did Windsurf for 20+ years but no longer want to work as hard at sports in general.
Personally, I like the 250cc setups, they are good stock motors
That said, the last thing I’m going to do is add a bunch of vibration, a steel sleeve, and a huge overbore without a stroke to match so I can completely change my motor character around and produce something I’m going to hate. I might like it on the trails, but this bike gets used for everything so that’s a no-go. If I had unlimited funds the first thing I’d be doing is balancing my crank and smoothing things out as much as possible, I can use the power it currently has effectively but having everything smoother and more free flowing is the best thing I can think of to improve it, even though they really don’t vibrate all that bad now adays anyway.
Rant over, I’m getting old and I’m pushed about it
Edit: As far as trans go, for comparison I pulled mine apart at 150 hours and every gear looked good, however most of the bearings were due to be replaced. Based on that I don’t think the 325 kit is really hammering it all that much more than a stocker is, but riding style will obviously play a major role here as well.
Pit Row
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