Yamaha Discussions about Yamaha ATVs.

yfz cam gear mod

Thread Tools
 
Search this Thread
 
  #1  
Old 09-09-2003 | 04:19 PM
jjp's Avatar
jjp
Thread Starter
|
Weekend Warrior
Joined: May 2003
Posts: 10
Likes: 0
Default yfz cam gear mod

I was just wondering, I was talking to a guy the other day who has a 03 wr 450 bike, he mentioned that he wanted to get the yzf cams to put in it. So i brought up just advancing the exhaust one tooth like I heard many people are doing with the quads to get the same effect. He told me that with the WR you cant do that because it messes up the decompression and the starter wont crank it. So can he do it and still use the electric start,do the quads have a problem when you do this. Hopefully someone can shed some light on this for me. Thanks
 
  #2  
Old 09-09-2003 | 04:52 PM
ShadyRascal's Avatar
Pro Rider
Joined: Apr 2003
Posts: 2,487
Likes: 0
Default yfz cam gear mod

Excellent post Ridley. Now, is this specifically the exhaust cam? Or both cams?
 
  #3  
Old 09-09-2003 | 05:34 PM
DAMAGEINC's Avatar
Trailblazer
Joined: Nov 2002
Posts: 61
Likes: 0
Default yfz cam gear mod

EXHAUST.
 
  #4  
Old 09-09-2003 | 11:35 PM
ShadyRascal's Avatar
Pro Rider
Joined: Apr 2003
Posts: 2,487
Likes: 0
Default yfz cam gear mod

You don't waste any time getting into the motor! [img]i/expressions/face-icon-small-smile.gif[/img] I had posted at one point, a guy at St Anthony on a baffle removed/airbox lid off/jetted YFZ raced one with the same mods but with also the cam mod and said he got smoked pretty good, going up big ol choke cherry hill.
 
  #5  
Old 09-09-2003 | 11:50 PM
selector's Avatar
Pro Rider
Joined: Aug 2003
Posts: 935
Likes: 0
Default yfz cam gear mod

Ridley,

I'm very near to going larger on the bore and porting. I considered going with what you're doing, but at the time there was absolutely no data/feedback on what was out there. Now the shiz is a hit'n the fan and everybodys got something cooking.

14.5:1 - wow!

selector
 
  #6  
Old 09-10-2003 | 12:20 AM
660x2's Avatar
Range Rover
Joined: Apr 2003
Posts: 130
Likes: 0
Default yfz cam gear mod

you converting that thing to diesel ridley? 14.5?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lonerider856
Suzuki
20
10-13-2023 03:45 PM
Honski250r
Performance Mods and Project Quads
6
09-26-2015 09:40 PM
patrick.oc123
General Chat
0
09-15-2015 02:45 PM
bigbear350quad
Yamaha
0
09-11-2015 12:40 PM
awer1968
Introduce Yourself
1
09-08-2015 11:02 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: yfz cam gear mod



All times are GMT -5. The time now is 01:46 AM.