2008 WR450F with 2006 YZ suspension and cams

I'm not. The SSS fork on YZ's is an MX setup, and they take a bit more than the usual shim shuffle to get them to work well in an intense off-road environment. A lot of tuners aren't really tuned in to the differences that well, with as much focus as there is on MX in the dirt bike world in general. Can be done, though.

I'm looking forward to seeing what the factory has done with them on the '12 WR.

I had my Showa guy work on the KYB's. I'm gonna take them to a more experienced KYB guy next.

I'll look through my notes and see what my jetting is.

I bet you're right about the igniton box though.

Too bad a buddy doesn't own a WR so you could borrow a box from him.

I'll look through my notes and see what my jetting is.

I bet you're right about the igniton box though.

Too bad a buddy doesn't own a WR so you could borrow a box from him.

Yes, your jetting specs would be helpful.

I am at

168

45

stock needle jet

NCVS jet needle

100 air jet

stock starter jet

acv spring removed

R&D powerbowl II

.....yeah, I'd hate to buy a $350.00 Dyna ignition for nothing.......

Yes, your jetting specs would be helpful.

I am at

168

45

stock needle jet

NCVS jet needle

100 air jet

stock starter jet

acv spring removed

R&D powerbowl II

.....yeah, I'd hate to buy a $350.00 Dyna ignition for nothing.......

Will my '07 box work? Come by borrow the whole bike if needed...

Will my '07 box work? Come by borrow the whole bike if needed...

According to Yam, the '08-10 is different from the '07.

Who is this, Steve??

According to Yam, the '08-10 is different from the '07.

Both the '07 and '08 list the CDI as the same #5TJ-85540-E0-00 at Yamaha's web site.

According to Yam, the '08-10 is different from the '07.

Who is this, Steve??

Darryl, met you and Sarge on the int rides out at Gorman. I live in Pasadena.

Both the '07 and '08 list the CDI as the same #5TJ-85540-E0-00 at Yamaha's web site.

I stand (sit) corrected.

Darryl, met you and Sarge on the int rides out at Gorman. I live in Pasadena.

OK, yes I remember.

Let's hope it does not come down to that........and thank you.

OK, yes I remember.

Let's hope it does not come down to that........and thank you.

No problem.. Just let me know..

My 08 WR450 has a Dr. D pipe and a YZ exhaust cam.

It's been uncorked and has a Merge adjustable leak jet and fuel screw.

Pilot #42

Needle NCVQ @ #4

Main #165

My 08 WR450 has a Dr. D pipe and a YZ exhaust cam.

It's been uncorked and has a Merge adjustable leak jet and fuel screw.

Pilot #42

Needle NCVQ @ #4

Main #165

I'm using the NCVS needle which is pretty close to yours, and it's still way too rich.

I'm going to try the stock '08 YZ needle, the NFLR, next.

....back to the suspension guru it goes....

My 08 WR with YZ cams pulls hard right from idle.

Best motor I have ever owned.

There has to be something not right on your bike somewhere.

Yeah, he rode mine and said mine was faster :cry:

....and the plot thickens. I had another tuner ride the bike to get his impression, and his immediate response was " that doesn't feel like a jetting problem, it feels like an ignition advance problem.... the power delivery is very soft until 5-6k, then WHAM it comes into some serious power"...

I'm going to finish setting the TPS and see what happens...and go from there.

I might be buying one of these....

http://www.dynaonline.com/skins/products/dirtbikes/fs_ignition/

Do you want to try mine before you spend the money!

I'd just find a box on eBay.

I would take Derwud up on his offer Bill. He's not that far from you....

Edited by kenshaw720

I would take Derwud up on his offer Bill. He's not that far from you....

I'm going to test the TPS first.

I'm going to test the TPS first.

I am going away for the weekend. If you want, I can go remove mine and leave it on the porch or you can come get my whole bike Friday night before we head out... I wanna see you beat this problem..

Looking forward to the TPS report -

Sounds like a big PITA.

cheers-

Dustin

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