Winter Maintenance

4 replies to this topic
  • V8Pinto

Posted November 30, 2009 - 09:46 AM


I am getting my YZ400F ready for cold weather riding after blasting around the Desert all summer. I plan to go over the bike front to back and just make sure everything is up to snuff. Does the engine require anything other than an oil/filter and a valve lash check? Cam chain or anything else require checking? I just want to give it a real good once-over.

  • grayracer513

Posted November 30, 2009 - 10:30 AM


Be sure you are using a temperature-appropriate grade of oil.

When was the last cam chain you installed in it?

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  • V8Pinto

Posted December 01, 2009 - 05:55 PM


I have never changed the cam chain and I've owned it probably 3yrs. It's interesting you mentioned the cam chain. I was just searching the forum for "engine noise" because I hear lots of noise when it's cranked up.

  • rufusz

Posted December 02, 2009 - 01:59 AM


Be sure you are using a temperature-appropriate grade of oil.

Is there any special oil for colder riding? 10W-50, 15W-40 or similar is what I've used last 2 years in winter at didn't have any problems...

  • grayracer513

Posted December 02, 2009 - 07:16 AM


There's a temp chart in the manual. 15-20w-* oils are good down to 5℃ (40℉), while 10w-* oils are OK down to -10℃ (14℉). Colder than that you should be running a 5w or 0w oil. You certainly don't need a *w-50 wt when the weather is cooler than 80 degrees.

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