2002 yz426 oil leak?

2 replies to this topic
  • Bryan426racer2002

Posted January 27, 2002 - 09:42 AM


I just went to make my first valve adjustment,and once I removed the "straight plug" on the magneto cover oil began do run out. This is my first 426 and the dealer is closed. I am near the end of my 30-day warranty and beginning to freak out!!!!

Is this normal?

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

Posted January 27, 2002 - 01:20 PM


Don't worry about the oil leak. If you didn't have oil come out of there, then you would be in trouble. These bikes have a wet magneto. How did the rest of the valve check go? Were they in specs? How many hours were on the bike?

99 YZ400

  • sirthumpalot

Posted January 27, 2002 - 03:36 PM


Indeed there is oil back there behind the plug, but I don't remember any actually running out of mine when I removed it. I did not check to see how much oil was still in the frame. Will the oil actually run out of this hole if it's all drained from the frame into the cases?

Related Content

WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews

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

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.