Question for Gray

2 replies to this topic
  • primerib108

Posted July 31, 2011 - 07:05 PM


Since you are the ultimate YZ guru :smirk: I was hoping a little insight with the counter shaft balancer gear.....replaced my water pump seal with the side cover off and reinstalled everything again when I noticed the counter shaft gear had a bit of slop mating to the primary gear. Not much to be honest but it still raised a bit of concern. Any insight on this would be appreciated.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted July 31, 2011 - 07:46 PM


There's normally some gear lash in those two.

  • primerib108

Posted August 01, 2011 - 05:01 AM


Thanks for the ease of mind.....I was actually hunting down a tick I recently had but it turned out to be a leaky exhaust collar off my FMF exhaust. Still when you see gear lash it is hard to gander what is an acceptable amount. There is some very slight wear on all the gears but at least the primary gear is solid and I also checked the crank shaft bearings for play but it seems to be good as well. Another thing I discovered was I was able to peep up into the cylinder from the crankshaft openings......what an easy way of inspecting your top end wear without the hassle of removing the head.

Related Content


1998 yz400f will not idle. by trolley

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  32 replies

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Megabomb Fitment by 288yz450

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.