too much oil?????

6 replies to this topic
  • Mojo

Posted February 27, 2001 - 07:14 PM


I recently changed the oil on my 01 wr426 after break in and, like a bonehead, apparently can't add. I put 100ml too much oil in. I asked a Yamaha dealer mechanic if this is a problem and he said no, because the frame just holds the oil and it would have no ill affect. After reading some of the postings, I'm not sure if I should trust him. Any thought would be appreciated.


  • SFO

Posted February 27, 2001 - 07:16 PM


don't be surprised when your crank vent spews oil...

  • Mojo

Posted February 27, 2001 - 07:32 PM


other than making a mess, will this cause any damage? am I better off trying to drain the extra out? Thanks for your reply.

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  • SFO

Posted February 27, 2001 - 07:36 PM


All I can say is follow the lines on your dipstick, and the proper procedures.
You might be able to suck out the excess with a turkey baster with a hose attached.
Dumping the crancase drain will void 1/2 a quart or so, geez, I know how freaky it is with a new bike.
If it was mine I would try to follow Yamahas guidelines.

  • Mojo

Posted February 27, 2001 - 07:43 PM


freaky.....glad i'm not the only one feeling that way. Had reservations about the drain plug, like how am I gonna measure 100ml at that speed. Turkey baster and hose, good idea i'll try it. Thanks. Just gotta make sure I buy a new one befoe the wife finds out. Cheers.

  • MN_Kevin

Posted February 28, 2001 - 12:44 AM


When you drain the oil for changes, make sure your do the FRAME DRAIN as well. If you don't, you'll be added to the list I am on. I was a litre too high. Hey what can I say, I was a 2 stroke guy!

'99 WZ with all YZ mods, FMF PowerBomb header, Stroker SX-1 silencer, SS front brake line, forked over by Pro-Action, OEM YZ tank and IMS seat.

  • forloop

Posted February 28, 2001 - 06:52 AM


I over filled my YZ the first time too. It had no ill effects on the bike. In fact I would think as long as you do not fill it higher than the return line at the top it will be just fine.

Since we have a dry sump there is not a windage problem with the crank. Like the tech said it is held in the frame.

01 YZ426F #85 Vet C

[This message has been edited by forloop (edited 02-28-2001).]


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