YZ 450 Cams in WR 426's?
Posted March 07, 2003 - 09:13 PM
Posted March 08, 2003 - 12:47 AM
The aftermarket cam places like HotCams are reported to be working on something, but they have also said they will be a few months away yet...
It is a great mod, just be aware if you want to maintain the WR timing, you will need the WR450 cam... for YZ timing, the YZ450 cam...
Posted March 08, 2003 - 04:46 AM
Posted March 08, 2003 - 05:14 AM
I guess much thanks is due to all the brave souls who took the leap so we all could learn more.Thanks to you.
And they said it could'nt be done.
Posted March 08, 2003 - 09:17 AM
Posted March 08, 2003 - 11:31 AM
The power is more linear, deceptively so... like a really fast WR... combine it with the JamesNOW! mod and you have a potent combination that will launch itself out of corners and over rock and ruts... you can loft the front wheel at will, any gear... and the bike just keeps hauling until you shut it off... if you can use all the power of this bike, then I want your autograph... because you are one hell of a rider...
There is no mid range hit as such... they seem to have bought the bottom end up to match the mid range... it is just fast everywhere...
Posted March 08, 2003 - 04:22 PM
I went to my dealer and he said even last week Yamaha had the dealers in a meeting and said "you will see it all over the internet, but IT CAN'T BE DONE!!!!!!!!!!!!!!!
I took in the dyno runs and instructions from just ride it and started to make a few believers. Mark
Posted March 08, 2003 - 04:55 PM
It would be good to see them scratching their heads when they realise... You think they would just do it for themselves and work it out... I doubt a few privateers need to be the ones showing the way for the R & D labs at Yamaha Corp.
Open invitation to any Yamaha Tech or Management... come ride my bike and I will pull it down afterwards and you can inspect it...
Posted March 08, 2003 - 06:11 PM
I believe the post on the YZ side is an all time record,over 10,000 hits,unreal
It just sounds like Yamaha does'nt want to assume any liabilty for recommending this mod.to the general public,hey to each his own.You just can't deny the attention this is getting.Great job with the .pdf file,downloaded last week.
Posted March 08, 2003 - 11:51 PM
whats with these idiots?? cant do this, cant do that, cant they think outside the square??
Posted March 09, 2003 - 01:22 AM
Posted March 09, 2003 - 05:32 AM
Thanks a bunch for the link to the instructions. Another extremely well put together presentation! I didn't see a name attached to it, but "Hats Off" to whom ever authored it!
I do remember when this topic first started on TT. Then it kinda dissapeared from the front pages till now, now that it has been proven and time tested, at least regarding the 426. The 250 mod, as I recall, was pretty much a no brainer.
I assume that the dyno comparison was done using a YZ timed bike to start with. There I go, thinking out loud again! Of course it was, otherwise it wouldn't be a fair comparison.
Posted March 09, 2003 - 10:51 AM