Posted on Mar 17, 2010

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2005 Yamaha YZ 250f. suggestions on type of motor oil.

2005 Yamaha YZ 250f. Any suggestions on what type and grade of motor oil works best?
I have read all sorts of things and cannot decide. Some say 10W 30 or 40, or 15W 40 or 50.

1 Answer

A Miller

Yamaha Master 8,404 Answers
Posted on Mar 17, 2010

A Miller

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What did Yamaha tell you? I think 10 is too light. Call your Yamaha shop for the proper recommendation.

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gavin jones

1508 Answers
Posted on May 11, 2010

SOURCE: 2005 Yamaha YZ 250f. suggestions on type of motor oil.

The manual gives different grade for different temp . sorry if your in america these temps are in centigrade.
if it gets below 0 deg C use the thinner oil 10W30
5deg-40deg 15 or 20W40
If it gets to 50degC 20W50
just make sure it is motorcycle oil without friction modifiers or the clutch will slip

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2005 Yamaha YZ 250f. suggestions on type of motor oil.

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A Miller

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gavin jones

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