wr426 cam timing again...
Posted February 12, 2001 - 05:56 PM
At tdc a black mark is in the inspection window.
The intake cam has marks at 9, 12, and 3 o'clock.
The exhaust cam has the same markings only they appear to be one tooth advanced.
To make the exhaust cam marks appear at the same dispensation as the intake cam I would have to turn it one tooth clockwise...
The instructions aren't exactly the same for the other years...
Am I upon the true path?
It is my goal to create yz timing btw...
Posted February 12, 2001 - 06:40 PM
Posted February 13, 2001 - 06:36 PM
It was at 13, now it be 12.
Will have to burn a couple wheelies up bryant st. to check it out.
Thanks for the help.
Posted February 13, 2001 - 08:53 PM
with the inlet 'locked' you can fiddle about until you get it right.
Posted February 13, 2001 - 09:36 PM
The power seems brighter in the region of mid-top.
I heard that a pipe will accent this.
I am eye-balling a yosh ti set-up.
A distributor owes me a small favor...
Has anyone experienced this pipe?
Damn, I feel like such a ducati queen asking about titanium parts...
Forgive my transgressions, o lord...
Posted February 19, 2001 - 10:48 PM
Posted February 19, 2001 - 01:18 PM
this whole website is dedicated to reports on every conceivable aspect of YZ timing.
some of it analitically done by very good mech riders. go to the 'discussion archives' & read & read & read & read.
you don't have to have on eriders view there are 50!!!
anyway, good luck.
Posted February 19, 2001 - 04:34 PM
There you go again!! Its funny, last week we really didnt know if the WR426 had the YZ timing but all of the sudden we now have 50 or so archives on the WR426?? Relax my man, My 426 hits way harder than my 400 does and in my opinion I dont think that the 426 really needs the fix as much as the 400! Michael, great question dude, If you have the 426 I would leave it alone...
Even if this was a redundant question I wouldnt really care, I like hearing from new people, you cant blame them for being excited, I wouldnt want the WR forum to turn into the ever exciting XR650R forum zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Dan
Posted February 19, 2001 - 05:37 PM
Carnegie, where I went riding, has a mx track and alot of hills w/nada traction.
This is not my fav riding spot.
Anyway, at this point I would say the giving up of the bottom end is a wash, considering that even on the mx track I would only spin it up a few times.
I am going to try Hollister this wknd and will have experience in known trails to actualy quantify a difference.
Its still 50/50 at this point...
I am considering adjustable cam sprockets so I don't have to utilize the coarse 1 tooth adjustments...
The crisp ripping bottom end is missed....
Posted February 19, 2001 - 10:03 PM
You are the second person that I know of that has posted on the timing change on a 426 (sorry Taffy I must have missed the other 48 ). Neither you nor Parry in Clovis seemed to realize the benefits that the earlier years did - maybe that will change when you can open it up a bit.
Thanks Dan - it's the price of being a relative newbie. My focus was the 426, and I haven't heard anything yet that makes me want to consider a timing change. I made the switch to the E series needle, and hope to try those changes out this week - so far so good.
Taffy - I should have been more specific in my question, as I know there is a sensitivity around here to posting about FAQ's without doing a search. Anyway, I accept my beating with a smile , and I continue to respect your posts! You have a lot of insight into these machines we all ride (I appreciate that) and an occasional hair tigger with rebukes (ready, fire, aim). It keeps things lively!
Posted February 20, 2001 - 07:17 AM
you should get more power everywhere (certainly no loss i wouldn't have thought) but especially the mid upper.
what often isn't explained is the way the revs just keep going up & you keep having to shift gear.
in many ways there is too much power after it's done.
last year i did the timing & raced the next day. i managed to turn every 180D corner into a 270D.
you're right though, we are only just getting used to the fact that it's NOT got the YZ timing OTD.
Posted February 20, 2001 - 08:06 PM
Has anyone raced a true YZ426 side by side with the WR426? I guess I just want it all. Keep posting new WR426 feedback please.
Posted February 21, 2001 - 07:38 AM
Posted February 21, 2001 - 11:11 AM
no offence to all on this site but that has got to be what this is all about.
i'd love a 37mm carb on mine that's for sure.
Posted February 27, 2001 - 04:56 PM
Tell him I said hi.
Posted February 28, 2001 - 12:11 AM
i'm not going to spend silly money on mine & i would guess that a new carb is silly money.
what would be far more realistic is if someone's mate has purchased a WR/YZ 250 & for the sake of an hours work they put the 37mm on the 400/426.
i think it would open a lot of eyes. we have far too many passive members in the group so it'll come down to the same one or two.
just think of all that bottom end umpphh!