Question about 2003 Yamaha YZ 450 F
Rediculous to start this bike cold, you gotta tow it for 100 yards. it can be adjusted to fire in one kick when it's warm, though it kicks way way to easy. go ahead tell me......
Do a compression check. It should be 120lbs or above. Check the compression release. Is it closing fully? Burned valves may be at play here also. Bad piston rings or seize scars on the cylinder wall? If you need a service manual you can download a free PDF from the site below.
Please rate this answer. Thanks ellismd79!
Posted on Apr 20, 2009
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Posted on Jan 02, 2017
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