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Cant figure out whats wrong with my 03 yz250

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Old 07-13-2008, 01:35 AM
250yzFMXrider's Avatar
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Default Cant figure out whats wrong with my 03 yz250

usually im pretty good with my bike n figuring everything out but somethings screwedup

it wont start, it kicks n turnes but its to easy to kick like its low on compression,

i just today bought a brand new racing sparkplug for my bike and a brand new filter and did everything right sprayin it with filter oil n all that the spark plug cam factory feeler gauged for my bike, everythings fine it
just wont start i even went down a hill kicked it in gear and tryed to start it up and just would blow air out the pipe n turn but would start,

i took the sparkplug out n pluged it in and kicked to see if it would spark n it did perfect.
 
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Old 07-13-2008, 10:29 AM
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Default Cant figure out whats wrong with my 03 yz250

If you have low compression, then your engine is probably blown up. The piston rings and cylinder are scarred to the point where you don't have enough compression to start the engine. You could do a compression test before you tear it all apart to prove that's the problem.
 
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Old 07-13-2008, 01:49 PM
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Default Cant figure out whats wrong with my 03 yz250

I would also check to make sure it is getting fuel.
 
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