98' 400f intake cam


4 replies to this topic
  • yz400fsmasher

Posted March 01, 2009 - 04:12 PM

#1

i was checking the valves on my 400f and needed to shim them. so i pulled the cams of and noticed that my intake cam was scored like it lost oil supply to it or something. my head was also scored:banghead: i purchaced hot cams but would i need a new head as well do to the scoring?
Posted Image
Posted Image
Posted Image

  • 426 NOOB

Posted March 01, 2009 - 06:25 PM

#2

i was checking the valves on my 400f and needed to shim them. so i pulled the cams of and noticed that my intake cam was scored like it lost oil supply to it or something. my head was also scored:banghead: i purchaced hot cams but would i need a new head as well do to the scoring?


upload a pic if you can so we can see just how bad it is. that way we can give you accurate advice.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Birdy426

Posted March 01, 2009 - 10:43 PM

#3

Engine Dynamics can do wonders repairing these if it is FUBAR...

  • Mattbrown707

Posted March 03, 2009 - 05:36 PM

#4

That sucks.

  • grayracer513

Posted March 03, 2009 - 08:13 PM

#5

http://www.enginedynamics.com/





Related Content

Forums
Photo
Supercross

Wilson the Blue Privateer by jetfuel


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies
Forums
Photo

Snake pit oct 30th by The Anvil


Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies
Forums
Photo

James Stewart back on a YZ450F by YamaLink


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies
Forums
Photo

Michigan Motocross Tires by 288yz450


Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply
Forums
Photo

Megabomb Fitment by 288yz450


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

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.