HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
dmoney1074

Back to wr timing???

4 posts in this topic

Hey all, while I have put the 03' cam mod for my wr426 on hold for now (money issues), i want to change my timing. While I was checking the valve clearances yesterday, i noticed the bike was yz time (12 pins I think). Since I bought the bike used, this is new to me... Anyways, i rarely find myself in the upper rpm range, so its pretty useless to have it yz timed. I ride ALOT of relly tight technical stuff and i feel the stock timing would work for me better....

My question is, will i lose performance, or will the powerband just be moved down?

Also, if i change back to wr time will I have to reshim? My valves are in spec as we speak, so can I just change the timing and go?

Thanks guys!!!! :thumbsup::worthy::ride:

Share this post


Link to post
Share on other sites

I changed my timing over to the YZ timing when adjusting the valves last season. My very next ride was on the tightest/slickest trail system in Michigan. No problems with too much power (and I'm not the most aggressive rider in the tight stuff.) I'd leave it unless you really don't want the power. The mod changes/increases the power in the middle to upper range of each gear. It should only be an issue if your ripping through the gears, but odds are if your in really tight, technical trails, you've already got good throttle/clutch control and your not constantly wide open. I like it for an extra boost in sandy rollers and whoops. Good luck

Share this post


Link to post
Share on other sites
I changed my timing over to the YZ timing when adjusting the valves last season. My very next ride was on the tightest/slickest trail system in Michigan. No problems with too much power (and I'm not the most aggressive rider in the tight stuff.) I'd leave it unless you really don't want the power. The mod changes/increases the power in the middle to upper range of each gear. It should only be an issue if your ripping through the gears, but odds are if your in really tight, technical trails, you've already got good throttle/clutch control and your not constantly wide open. I like it for an extra boost in sandy rollers and whoops. Good luck

Its not that I dont want the power, I just really dont use it and it would be better down low.....

Share this post


Link to post
Share on other sites

I love my 2002 YZ timed and would never go back. I find it runs better and offers smoother power delivery, like the engine was primarily designed with YZ valve timing. Low end response seemed abrupt and a bit rough with WR timing. I also had to go down to a 170 from 172 main, with OBEKN at #2 instead of #3 when switching to YZ timing...

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0