New 2023 YZ450F

racinstation
Posts
941
Joined
5/18/2013
Location
Driggs, ID, USA
1/20/2024 3:47pm
VPG43 wrote:

Does anyone have an ECU for sale?

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response and overall power.

1/21/2024 5:51am
VPG43 wrote:

Does anyone have an ECU for sale?

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response...

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response and overall power.

Who mapped them? How much?

1/21/2024 6:55am
MadsDausel wrote:

I have a twinair powerflow kit, Athena get rx1 ecu and fcp engine mounts for sale for 23-24 yz450

Still available?

CarlinoJoeVideo
Posts
7517
Joined
11/30/2013
Location
Portland/Los Angeles, CA, USA
1/21/2024 8:19am
VPG43 wrote:

Does anyone have an ECU for sale?

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response...

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response and overall power.

Who mapped them? How much?

The GET is mapped from them. I only tried the base map that came on it. Very connected map. Comes with WiFi modal and bar switch.
$550 shipped. 

The Shop

CarlinoJoeVideo
Posts
7517
Joined
11/30/2013
Location
Portland/Los Angeles, CA, USA
1/22/2024 12:55pm

Bump the thread for some carbon IMG 0109 0.jpeg?VersionId=eyn1gGgh

21
LLOYD22
Posts
590
Joined
4/1/2008
Location
Scranton, IA, USA
1/22/2024 8:10pm
Bump the thread for some carbon 

Bump the thread for some carbon IMG 0109 0.jpeg?VersionId=eyn1gGgh

I wanted one of these so bad but after trying to deal with them to get one bought I passed, they don’t have the best customer service.

Timo
Posts
1447
Joined
1/9/2021
Location
Wichita, KS, USA
1/22/2024 8:16pm
Bump the thread for some carbon 

Bump the thread for some carbon IMG 0109 0.jpeg?VersionId=eyn1gGgh

Does it hold more fuel than a stock tank?

racinstation
Posts
941
Joined
5/18/2013
Location
Driggs, ID, USA
1/22/2024 8:42pm
VPG43 wrote:

Does anyone have an ECU for sale?

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response...

We have a couple Vortex for the 23-24 in stock.  We have them mapped and ready to ship.  They make a great difference in throttle response and overall power.

Who mapped them? How much?

We have Vortex standard mapping and maps that we have put together for some different pipes.

CarlinoJoeVideo
Posts
7517
Joined
11/30/2013
Location
Portland/Los Angeles, CA, USA
1/24/2024 9:03pm
Bump the thread for some carbon 

Bump the thread for some carbon IMG 0109 0.jpeg?VersionId=eyn1gGgh

Timo wrote:

Does it hold more fuel than a stock tank?

Yeah a little more than stock

joe846
Posts
209
Joined
10/2/2017
Location
Orinda, CA, USA
1/26/2024 1:01pm

Just got my stuff back from REP. Great customer experience and packaging. Excited to try it!

IMG 1883 0

2
1/27/2024 7:09am
joe846 wrote:
Just got my stuff back from REP. Great customer experience and packaging. Excited to try it!

Just got my stuff back from REP. Great customer experience and packaging. Excited to try it!

IMG 1883 0

 Nice! Give a ride report asap! What did REP do to it?

ZinAZ
Posts
321
Joined
10/11/2022
Location
boston, MA, USA
1/28/2024 4:57pm

put er on the podium this past weekend 3-2 for 2nd overall in 450C

acp4acp1acp2acp3

9
1/31/2024 12:14pm

I know it's been mentioned in one of these 69 pages, but what are you guys doing for pistons? I'm nearing 40 hours and plan to replace the stocker to ensure I have no piston pin failure in my future as some of the guys in here have experienced. 

My go-to is Wiseco but I haven't seen any pistons available. My buddy at Rekluse isn't able to order one or find a part # either. It sounds like Vertex or OEM are the only options. I've always used Wiseco and am reluctant to put a cast piston in, but I will if that's all that's offered at this point!

Thanks guys!

- Happy '23 Yz450 Owner

treybird189
Posts
64
Joined
7/6/2018
Location
Palm Coast, FL, USA
2/4/2024 7:52pm

Sorry if I missed it in this thread but what rear disc guards will fit this bike? Will the previous model year fit?

LLOYD22
Posts
590
Joined
4/1/2008
Location
Scranton, IA, USA
2/6/2024 8:40pm

IMG 3827

8
2/7/2024 2:47am
LLOYD22 wrote:

IMG 3827

Beautiful bike! Are those coatings on your forks or A kit? What else is done to the bike? What gearing u running? Bike looks mint

LLOYD22
Posts
590
Joined
4/1/2008
Location
Scranton, IA, USA
2/7/2024 7:43am
LLOYD22 wrote:

IMG 3827

Beautiful bike! Are those coatings on your forks or A kit? What else is done to the bike? What gearing u running? Bike looks mint

I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it.  Suspension is best upgrade for sure!

IMG 3822

1
2/7/2024 8:12am
LLOYD22 wrote:
I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it...

I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it.  Suspension is best upgrade for sure!

IMG 3822

If you don't mind sharing what was your total cost for this, and what did he all do? Looks great btw.

2/7/2024 8:44am
LLOYD22 wrote:

IMG 3827

Beautiful bike! Are those coatings on your forks or A kit? What else is done to the bike? What gearing u running? Bike looks mint

LLOYD22 wrote:
I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it...

I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it.  Suspension is best upgrade for sure!

IMG 3822

I had him do the exact same thing along with the fcp engine mounts and luxon gen 3 pro clamps on the 23mm offset and it's a completely different bike.  I did the vortex from xpr as well.   I am really enjoying the bike now.   At first I was a little worried I made a mistake coming off a kawi but now I'm glad I switched. 

1
walent215
Posts
2523
Joined
12/6/2014
Location
Ridgecrest, CA, USA
2/7/2024 9:45am
I know it's been mentioned in one of these 69 pages, but what are you guys doing for pistons? I'm nearing 40 hours and plan to...

I know it's been mentioned in one of these 69 pages, but what are you guys doing for pistons? I'm nearing 40 hours and plan to replace the stocker to ensure I have no piston pin failure in my future as some of the guys in here have experienced. 

My go-to is Wiseco but I haven't seen any pistons available. My buddy at Rekluse isn't able to order one or find a part # either. It sounds like Vertex or OEM are the only options. I've always used Wiseco and am reluctant to put a cast piston in, but I will if that's all that's offered at this point!

Thanks guys!

- Happy '23 Yz450 Owner

24448A     VERTEX PISTON:  450CC \ 12.8:1 \ 96.95

24449A      VERTEX PISTON: 450CC \ 13.8:1\ GP\ 96.95

 

These are available and are forged....

 

If you need one and cant source them we got you covered.

1
bowens971
Posts
55
Joined
3/9/2015
Location
Childress, TX, USA
2/7/2024 10:42am

IMG 1972.jpeg?VersionId=Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune the suspension and swapping the front master cylinder for a Honda. Rode practice day for the Texas Winter Series at Freestone and it was absolutely brutal on stock suspension. They’re set up to go way faster than I can I’ve decided. Talked to Craig and we agreed to set it up for some comfort and I couldn’t be happier with it as a slow vet guy. 

5
2/7/2024 1:10pm Edited Date/Time 2/7/2024 1:16pm

Beautiful bike! Are those coatings on your forks or A kit? What else is done to the bike? What gearing u running? Bike looks mint

LLOYD22 wrote:
I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it...

I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it.  Suspension is best upgrade for sure!

IMG 3822

I had him do the exact same thing along with the fcp engine mounts and luxon gen 3 pro clamps on the 23mm offset and it's...

I had him do the exact same thing along with the fcp engine mounts and luxon gen 3 pro clamps on the 23mm offset and it's a completely different bike.  I did the vortex from xpr as well.   I am really enjoying the bike now.   At first I was a little worried I made a mistake coming off a kawi but now I'm glad I switched. 

Did u get a chance to test the 23mm offset clamps on their own ? or was it all done at once ?

Rider 5280
Posts
2397
Joined
11/9/2011
Location
Denver Metro, CO, USA
2/7/2024 1:12pm Edited Date/Time 2/7/2024 1:21pm
bowens971 wrote:
Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune...

IMG 1972.jpeg?VersionId=Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune the suspension and swapping the front master cylinder for a Honda. Rode practice day for the Texas Winter Series at Freestone and it was absolutely brutal on stock suspension. They’re set up to go way faster than I can I’ve decided. Talked to Craig and we agreed to set it up for some comfort and I couldn’t be happier with it as a slow vet guy. 

Would love to hear more about your thoughts on Austrian 350s vs. 23+ YZ450F. 

I have been swayed by the 350 reviews and was planning to buy one soon (even went so far as purchasing a bunch of parts ... I am an idiot) ---> but, it seems the 23+ YZ450F models are like a 350 for luggers, with better suspension and mucho power on tap?

As an owner of both, hearing the pros/cons of each is exactly what I am interested in - if you're open to it. Feel free to email me if preferred (not wanting to gunk up this thread. My email address is:

VitalMx123@outlook.com

2/7/2024 1:27pm
LLOYD22 wrote:
I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it...

I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it.  Suspension is best upgrade for sure!

IMG 3822

I had him do the exact same thing along with the fcp engine mounts and luxon gen 3 pro clamps on the 23mm offset and it's...

I had him do the exact same thing along with the fcp engine mounts and luxon gen 3 pro clamps on the 23mm offset and it's a completely different bike.  I did the vortex from xpr as well.   I am really enjoying the bike now.   At first I was a little worried I made a mistake coming off a kawi but now I'm glad I switched. 

Did u get a chance to test the 23mm offset clamps on their own ? or was it all done at once ?

I had the suspension and motor mounts done before the clamps.   While the suspension and mounts really helps the harshness and overall feel/confidence I was still getting some bad head shake when chopping the throttle on high speed rough sections.   Thats gone now.   I have not tried the 24mm stem yet and don't really see a reason to.   

3
LLOYD22
Posts
590
Joined
4/1/2008
Location
Scranton, IA, USA
2/7/2024 1:56pm
LLOYD22 wrote:
I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it...

I had Craig turn my stock suspension into A kit for most part, 50t rear, rekluse clutch pack, akrapovich exhaust, gytr hydraulic clutch is basically it.  Suspension is best upgrade for sure!

IMG 3822

LumpDog841 wrote:

If you don't mind sharing what was your total cost for this, and what did he all do? Looks great btw.

I want to say the forks were 3 grand and a kit shock was 2800 if I remember right.

1
bowens971
Posts
55
Joined
3/9/2015
Location
Childress, TX, USA
2/7/2024 2:37pm
bowens971 wrote:
Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune...

IMG 1972.jpeg?VersionId=Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune the suspension and swapping the front master cylinder for a Honda. Rode practice day for the Texas Winter Series at Freestone and it was absolutely brutal on stock suspension. They’re set up to go way faster than I can I’ve decided. Talked to Craig and we agreed to set it up for some comfort and I couldn’t be happier with it as a slow vet guy. 

Rider 5280 wrote:
Would love to hear more about your thoughts on Austrian 350s vs. 23+ YZ450F.  I have been swayed by the 350 reviews and was planning to...

Would love to hear more about your thoughts on Austrian 350s vs. 23+ YZ450F. 

I have been swayed by the 350 reviews and was planning to buy one soon (even went so far as purchasing a bunch of parts ... I am an idiot) ---> but, it seems the 23+ YZ450F models are like a 350 for luggers, with better suspension and mucho power on tap?

As an owner of both, hearing the pros/cons of each is exactly what I am interested in - if you're open to it. Feel free to email me if preferred (not wanting to gunk up this thread. My email address is:

VitalMx123@outlook.com

I had a 22 FC350 and I loved everything about it. Rode 23’s and 24’s and didn’t like them at all, they felt completely different from the 22 to me. I describe the 22 as feeling like an insanely fast 250f, pretty exciting engine, and the 23+ as feeling like a very slow 450. I rode a 24 yz450f and bought one the next day. The engine has a very exciting feel to it that I like and enough power to ride it any way you want. I’m 29, local C class speed so take my input for what it’s worth. Definitely try before you buy! 

2
Abean3
Posts
19
Joined
10/21/2017
Location
St Augustine, FL, USA
2/7/2024 9:12pm
bowens971 wrote:
Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune...

IMG 1972.jpeg?VersionId=Stepped away from the church of 350 and picked up this 24. Really loving the bike and the engine. All stock other than having Craig tune the suspension and swapping the front master cylinder for a Honda. Rode practice day for the Texas Winter Series at Freestone and it was absolutely brutal on stock suspension. They’re set up to go way faster than I can I’ve decided. Talked to Craig and we agreed to set it up for some comfort and I couldn’t be happier with it as a slow vet guy. 

Rider 5280 wrote:
Would love to hear more about your thoughts on Austrian 350s vs. 23+ YZ450F.  I have been swayed by the 350 reviews and was planning to...

Would love to hear more about your thoughts on Austrian 350s vs. 23+ YZ450F. 

I have been swayed by the 350 reviews and was planning to buy one soon (even went so far as purchasing a bunch of parts ... I am an idiot) ---> but, it seems the 23+ YZ450F models are like a 350 for luggers, with better suspension and mucho power on tap?

As an owner of both, hearing the pros/cons of each is exactly what I am interested in - if you're open to it. Feel free to email me if preferred (not wanting to gunk up this thread. My email address is:

VitalMx123@outlook.com

I have a 22 350 and now this 24 450.  I am a slow vet guy and I think the 450 is much easier to ride.  The 350 is great, but the 450 has better suspension and you can adjust the power on the app to your liking.  You can't make it a 350, but you can tame the hit if you like.  To me it handles just as good if not better and I can easily clear any jump out of the corner without having to ride it so high in the rpm like the 350.  If I could only have one then it would be the YZ for sure. 

5
joe846
Posts
209
Joined
10/2/2017
Location
Orinda, CA, USA
2/15/2024 11:17pm Edited Date/Time 2/15/2024 11:23pm

Have a few more hours on the bike and wanted to share some things I’ve noticed and tried.

I’ve put about an hour and a half on the REP Suspension so far and figured I’d share some feedback since I haven’t seen much information on REP on yamaha’s outside of Keefer. 

In stock form, the forks felt a little soft for me, but were also very compliant and active, which felt great for off-road. The shock on the other hand felt terrible for my 230 pounds. I had to put so much preload on the spring that it felt like I got no traction and the bike wouldn’t squat at all.  The rear was also shockingly high given the preload, to the point I was clipping my boat when stepping over, even at 6’ tall.

REP Suspension on the other hand has the bike feeling very balanced while in the pits and riding, and lower in the rear. They lowered the shock slightly, but I’m not sure if it’s by 1 mm or 2 mm.

The bike squats on the throttle, and the shock works really well off-road and in the sand. Going out two clicks on rebound has it pretty glued to the ground off-road, and I’m able to get decent sag numbers with their spring set up. Still haven’t raced it but will give more feedback as I go.

Forks lost some comfort, and feel a little less active. No matter what I hit I still seem to have about 60 mm of travel at the bottom, but the bottoming resistance with their spring tubes is really good. Same as the shock, the clickers definitely make a difference, and I feel like the stiffness upfront might have to do with the fork height more than anything. I started at 3 mm then went down to 1mm for the sand and that’s when I started getting more harshness and skipping. I’m going to try 2mm tomorrow. 

Overall, as was the case with my Husqvarna, I’m super happy with REP. I think they listen, work with you if you have questions or feedback, and in both cases the initial settings have been very, very good.

I haven’t ridden an Enzo set up on this bike yet, but I wouldn’t hesitate to use them. I think Will and the team they’re doing incredible work and have a different approach than REP when it comes to stiffness and valving. Can’t go wrong either way.

Couple other things I’ve noticed for anybody racing off-road. I tried the 14 tooth front sprocket, and the bike felt really different. It put shockingly less weight on the front wheel to the point where I almost think I would try a 14t front sprocket before buying a vortex ignition. I feel like it would be pretty tough to race motocross or tight with this, but could see using it for national hare & hounds or really fast stuff.

I also have been running the IMS oversize tank. First thing, the battery now sits inside a depression in the tank instead of in a separate tray. You definitely have to keep an eye on this because it sucks in water and mud…

Then, initially, the tank was designed to mount the ECU on the side, but the stock ECU throws the tip over error and will kill the bike when is idling. To help fix this IMS built a mount so that you could put the ECU parallel to the ground underneath the fuel pump. I’m not super excited about that because it leaves the ECU pretty exposed and I think it will get demolished in mud races. So far I’ve left the stock ECU on the side and other than when you leave the bike sitting idling I haven’t had any issues with it dying. It does constantly throw the tip over sensor code in the app.

I also tried a vortex ignition from twisted development with gear based mapping. I think Carlino Joe was using the same set up.

For me (40 expert) off-road, I don’t think the map works very well. It definitely pulls harder and much longer, and it’s great for Hill climbs, but it doesn’t start faster, you have to press the button to activate traction control after a dead engine start, and it’s still a decent amount of power for tight stuff off-road. I think it would be a handful in sprint enduro’s or 3 hour long WHS in the dry.

Also, I found the difference in engine braking between second and third gear a little disconcerting. I would come into some downhills and downshift in the second and blow my turn thinking I was in third, which has more engine braking.

Of note, you can run the vortex on its side versus having to run it down below as it doesn’t activate the tip over sensor. This is great, but the vortex sticks out from underneath the side panel and touches the shock in motion…

I’ve sent it back to twisted development to get the maps installed, and I’m eager to try it, but I’m still not very excited about running it underneath the fuel pump down by the shock.

Last two things that stood out to me are the Hydro clutch and bar position. 

Brembo clutch doesn’t come with the rubber sleeve covering where the hose attaches to the master body, like on Ktm. A little odd, considering the price. Also, it was much harder to bleed for some reason than other clutches I’ve worked with. It’s probably me but I had to go back and bleed it several times before I got everything out, and I actually ended up smoking a clutch pack in the process. 

I’ve also tried the bars in the back hole, and the front hole, and the bike almost turns too well for me at my height in the back hole. Also, when, landing on jumps or in soft sand, I noticed the front was a little twitchy. Figured I would tighten up the steering and steam, but when I moved the bars into the front hole that sensation mostly went away. The bike also seems more measured in the middle of the turn, although it did lose a tiny bit in terms of cutting down mid turn. Feels more comfortable standing for me in the hole as well. 

Massively, long post, but hope this helps!
IMG 2065.jpeg?VersionId=IMG 2063 3IMG 2077 0IMG 1731

2
LLOYD22
Posts
590
Joined
4/1/2008
Location
Scranton, IA, USA
2/16/2024 8:42pm
joe846 wrote:
Have a few more hours on the bike and wanted to share some things I’ve noticed and tried. I’ve put about an hour and a half...

Have a few more hours on the bike and wanted to share some things I’ve noticed and tried.

I’ve put about an hour and a half on the REP Suspension so far and figured I’d share some feedback since I haven’t seen much information on REP on yamaha’s outside of Keefer. 

In stock form, the forks felt a little soft for me, but were also very compliant and active, which felt great for off-road. The shock on the other hand felt terrible for my 230 pounds. I had to put so much preload on the spring that it felt like I got no traction and the bike wouldn’t squat at all.  The rear was also shockingly high given the preload, to the point I was clipping my boat when stepping over, even at 6’ tall.

REP Suspension on the other hand has the bike feeling very balanced while in the pits and riding, and lower in the rear. They lowered the shock slightly, but I’m not sure if it’s by 1 mm or 2 mm.

The bike squats on the throttle, and the shock works really well off-road and in the sand. Going out two clicks on rebound has it pretty glued to the ground off-road, and I’m able to get decent sag numbers with their spring set up. Still haven’t raced it but will give more feedback as I go.

Forks lost some comfort, and feel a little less active. No matter what I hit I still seem to have about 60 mm of travel at the bottom, but the bottoming resistance with their spring tubes is really good. Same as the shock, the clickers definitely make a difference, and I feel like the stiffness upfront might have to do with the fork height more than anything. I started at 3 mm then went down to 1mm for the sand and that’s when I started getting more harshness and skipping. I’m going to try 2mm tomorrow. 

Overall, as was the case with my Husqvarna, I’m super happy with REP. I think they listen, work with you if you have questions or feedback, and in both cases the initial settings have been very, very good.

I haven’t ridden an Enzo set up on this bike yet, but I wouldn’t hesitate to use them. I think Will and the team they’re doing incredible work and have a different approach than REP when it comes to stiffness and valving. Can’t go wrong either way.

Couple other things I’ve noticed for anybody racing off-road. I tried the 14 tooth front sprocket, and the bike felt really different. It put shockingly less weight on the front wheel to the point where I almost think I would try a 14t front sprocket before buying a vortex ignition. I feel like it would be pretty tough to race motocross or tight with this, but could see using it for national hare & hounds or really fast stuff.

I also have been running the IMS oversize tank. First thing, the battery now sits inside a depression in the tank instead of in a separate tray. You definitely have to keep an eye on this because it sucks in water and mud…

Then, initially, the tank was designed to mount the ECU on the side, but the stock ECU throws the tip over error and will kill the bike when is idling. To help fix this IMS built a mount so that you could put the ECU parallel to the ground underneath the fuel pump. I’m not super excited about that because it leaves the ECU pretty exposed and I think it will get demolished in mud races. So far I’ve left the stock ECU on the side and other than when you leave the bike sitting idling I haven’t had any issues with it dying. It does constantly throw the tip over sensor code in the app.

I also tried a vortex ignition from twisted development with gear based mapping. I think Carlino Joe was using the same set up.

For me (40 expert) off-road, I don’t think the map works very well. It definitely pulls harder and much longer, and it’s great for Hill climbs, but it doesn’t start faster, you have to press the button to activate traction control after a dead engine start, and it’s still a decent amount of power for tight stuff off-road. I think it would be a handful in sprint enduro’s or 3 hour long WHS in the dry.

Also, I found the difference in engine braking between second and third gear a little disconcerting. I would come into some downhills and downshift in the second and blow my turn thinking I was in third, which has more engine braking.

Of note, you can run the vortex on its side versus having to run it down below as it doesn’t activate the tip over sensor. This is great, but the vortex sticks out from underneath the side panel and touches the shock in motion…

I’ve sent it back to twisted development to get the maps installed, and I’m eager to try it, but I’m still not very excited about running it underneath the fuel pump down by the shock.

Last two things that stood out to me are the Hydro clutch and bar position. 

Brembo clutch doesn’t come with the rubber sleeve covering where the hose attaches to the master body, like on Ktm. A little odd, considering the price. Also, it was much harder to bleed for some reason than other clutches I’ve worked with. It’s probably me but I had to go back and bleed it several times before I got everything out, and I actually ended up smoking a clutch pack in the process. 

I’ve also tried the bars in the back hole, and the front hole, and the bike almost turns too well for me at my height in the back hole. Also, when, landing on jumps or in soft sand, I noticed the front was a little twitchy. Figured I would tighten up the steering and steam, but when I moved the bars into the front hole that sensation mostly went away. The bike also seems more measured in the middle of the turn, although it did lose a tiny bit in terms of cutting down mid turn. Feels more comfortable standing for me in the hole as well. 

Massively, long post, but hope this helps!
IMG 2065.jpeg?VersionId=IMG 2063 3IMG 2077 0IMG 1731

Does your braided line for the clutch seem too short?  Mine is pretty tight….

IMG 3843.jpeg?VersionId=AH4mfY7XZNI

2
joe846
Posts
209
Joined
10/2/2017
Location
Orinda, CA, USA
2/16/2024 11:08pm
joe846 wrote:
Have a few more hours on the bike and wanted to share some things I’ve noticed and tried. I’ve put about an hour and a half...

Have a few more hours on the bike and wanted to share some things I’ve noticed and tried.

I’ve put about an hour and a half on the REP Suspension so far and figured I’d share some feedback since I haven’t seen much information on REP on yamaha’s outside of Keefer. 

In stock form, the forks felt a little soft for me, but were also very compliant and active, which felt great for off-road. The shock on the other hand felt terrible for my 230 pounds. I had to put so much preload on the spring that it felt like I got no traction and the bike wouldn’t squat at all.  The rear was also shockingly high given the preload, to the point I was clipping my boat when stepping over, even at 6’ tall.

REP Suspension on the other hand has the bike feeling very balanced while in the pits and riding, and lower in the rear. They lowered the shock slightly, but I’m not sure if it’s by 1 mm or 2 mm.

The bike squats on the throttle, and the shock works really well off-road and in the sand. Going out two clicks on rebound has it pretty glued to the ground off-road, and I’m able to get decent sag numbers with their spring set up. Still haven’t raced it but will give more feedback as I go.

Forks lost some comfort, and feel a little less active. No matter what I hit I still seem to have about 60 mm of travel at the bottom, but the bottoming resistance with their spring tubes is really good. Same as the shock, the clickers definitely make a difference, and I feel like the stiffness upfront might have to do with the fork height more than anything. I started at 3 mm then went down to 1mm for the sand and that’s when I started getting more harshness and skipping. I’m going to try 2mm tomorrow. 

Overall, as was the case with my Husqvarna, I’m super happy with REP. I think they listen, work with you if you have questions or feedback, and in both cases the initial settings have been very, very good.

I haven’t ridden an Enzo set up on this bike yet, but I wouldn’t hesitate to use them. I think Will and the team they’re doing incredible work and have a different approach than REP when it comes to stiffness and valving. Can’t go wrong either way.

Couple other things I’ve noticed for anybody racing off-road. I tried the 14 tooth front sprocket, and the bike felt really different. It put shockingly less weight on the front wheel to the point where I almost think I would try a 14t front sprocket before buying a vortex ignition. I feel like it would be pretty tough to race motocross or tight with this, but could see using it for national hare & hounds or really fast stuff.

I also have been running the IMS oversize tank. First thing, the battery now sits inside a depression in the tank instead of in a separate tray. You definitely have to keep an eye on this because it sucks in water and mud…

Then, initially, the tank was designed to mount the ECU on the side, but the stock ECU throws the tip over error and will kill the bike when is idling. To help fix this IMS built a mount so that you could put the ECU parallel to the ground underneath the fuel pump. I’m not super excited about that because it leaves the ECU pretty exposed and I think it will get demolished in mud races. So far I’ve left the stock ECU on the side and other than when you leave the bike sitting idling I haven’t had any issues with it dying. It does constantly throw the tip over sensor code in the app.

I also tried a vortex ignition from twisted development with gear based mapping. I think Carlino Joe was using the same set up.

For me (40 expert) off-road, I don’t think the map works very well. It definitely pulls harder and much longer, and it’s great for Hill climbs, but it doesn’t start faster, you have to press the button to activate traction control after a dead engine start, and it’s still a decent amount of power for tight stuff off-road. I think it would be a handful in sprint enduro’s or 3 hour long WHS in the dry.

Also, I found the difference in engine braking between second and third gear a little disconcerting. I would come into some downhills and downshift in the second and blow my turn thinking I was in third, which has more engine braking.

Of note, you can run the vortex on its side versus having to run it down below as it doesn’t activate the tip over sensor. This is great, but the vortex sticks out from underneath the side panel and touches the shock in motion…

I’ve sent it back to twisted development to get the maps installed, and I’m eager to try it, but I’m still not very excited about running it underneath the fuel pump down by the shock.

Last two things that stood out to me are the Hydro clutch and bar position. 

Brembo clutch doesn’t come with the rubber sleeve covering where the hose attaches to the master body, like on Ktm. A little odd, considering the price. Also, it was much harder to bleed for some reason than other clutches I’ve worked with. It’s probably me but I had to go back and bleed it several times before I got everything out, and I actually ended up smoking a clutch pack in the process. 

I’ve also tried the bars in the back hole, and the front hole, and the bike almost turns too well for me at my height in the back hole. Also, when, landing on jumps or in soft sand, I noticed the front was a little twitchy. Figured I would tighten up the steering and steam, but when I moved the bars into the front hole that sensation mostly went away. The bike also seems more measured in the middle of the turn, although it did lose a tiny bit in terms of cutting down mid turn. Feels more comfortable standing for me in the hole as well. 

Massively, long post, but hope this helps!
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LLOYD22 wrote:
Does your braided line for the clutch seem too short?  Mine is pretty tight….

Does your braided line for the clutch seem too short?  Mine is pretty tight….

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I haven’t noticed it being too tight but I do run my levers pretty far in. There’s good slack/movement in the hose on mine by the frame, underneath the radiator. 

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