What to do whit a 426 engine on the winter?

1 reply to this topic
  • GerryYZF

Posted December 11, 2007 - 10:34 AM


Hi. Now when the winter has come to sweden it time for me to check the engine. I am new about the thumper, so i dont know what to do whit the engine so it dont break when the mx season starts. I think it would be god to change piston and check the valves. Mayby change cam to a 450 if its necessary...?
Did i have to do anything more? :banghead:

Greetings /


Sorry for my bad English... :D
Hope u understand. :busted:

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

Posted December 11, 2007 - 11:31 AM


I'm going to do the same in winter.
I'm going to check valves, change vlave springs, change piston and rod and crankshaft bearings.

Related Content


James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies

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.