yzf got very hot, melted plastic in oil screen, where did it come from?

2 replies to this topic
  • adam8781

Posted August 29, 2016 - 06:58 PM


06 yz450 got very hot, I have it completely apart for a full rebuild, i found ALOT of melted plastic in the oil pump metal screen,  everything is being rebuilt but for the life of me i have no idea where the plastic came from?  anyone know?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • billygildark5007

Posted August 29, 2016 - 08:01 PM


Weird... The only plastic I can think of in that motor would be timing chain guides but if your that far in it should be obvious. And I think those are black...
Maybe someone broke a piece of funnel off during oil change?
Luckily this thread will migrate to the yz forum where you'll get your answer....

  • grayracer513

Posted August 30, 2016 - 08:42 AM


There is a "white" plastic spring guide on the starter shaft assembly.  That's all I can think of at the moment.

Related Content


James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 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

First Hare scramble tips by dhend8

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 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.