1st Valve Check - Oil Change question(the process, not the kind of oil =).

3 replies to this topic
  • jhawker21

Posted August 18, 2007 - 06:08 PM


Hey guys -

I have an 02 YZ426.

I attempted my 1st valve check today and it couldn't have gone better. I was able to get to the valve's, all were in spec and looked good! I was very excited that they were in good shape! I did notice some dirt/gunk in my spark plug hole that worried me a bit. Any ideas on how to clean it out without pulling the plug and coating the top of the piston with dirt?

I also changed the oil in my bike for the 1st time.(I bought it used in May and have run about 8-10 hours since) so it was time for a change. I was able to do everthing but I could NOT get the screen out at the bottom of the frame. The book says it's torqued to 65 ft.lbs. Anyone have a trick or the best way to get this out? I pulled as hard as I could and no budge.

Thanks for the help!


  • dirtrider04

Posted August 18, 2007 - 06:53 PM


dont bother with the screen not much comes out
kinda point less as far as the sparky i dont know how stuff got in

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  • grayracer513

Posted August 18, 2007 - 08:26 PM


Unless there's been some major failure, or an overhaul done, there's not much reason to pull the screen. It's analogous to the pickup screen in the crankcase of a wet sump system, and they never get cleaned unless the engine's apart, mostly.

It requires a 6-point, 26mm deep socket, and someone to hold the bike.

  • jhawker21

Posted August 19, 2007 - 02:57 PM


Thanks Gray!

I was thinking it may be the least necessary part of changing the oil but wanted to make sure!

Thanks for all the help! I love TT, it's great for learning how to maintain my bike.


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