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Old 10-30-2010, 06:29 PM
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Default engine is not running

i'm getting a bit annoyed now, this engine won't start, got spark, put my thumb on plug hole pressed down and pulled the recoil and it blew my thumb right off, so i got compression. i have spayed carb cleaner in there but it just gets blown right out the exhaust, has not even fired once, so i wan't to figure out whats up with that then ill think about the carb (which has bean cleaned), new fuel, new fuel lines new fuel filter, exhaust doesn't have too much carbon (pull recoil and a puff of air comes out), no sing of leaky gaskets, and the cylinder is nice and tight (so is the crank case), spark plug is snug, and from what i can see timing is good. whats going on!?
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Old 10-30-2010, 06:58 PM
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spray some starting fluid into the intake and see if it fires a few times. if so then its the carb
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Old 10-30-2010, 07:07 PM
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Spark in open atmosphere does not mean it is jumping the gap in real time conditions.
Check that proper plug and flywheel/magneto gap is correct. Use feeler gauges.
Double check that flywheel key has not sheared.
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Old 10-30-2010, 07:15 PM
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i have tried the starter fluid trick already, i don't get anything.
i have the proper plug, cjy8 just like mfg says.
i'll once again check the fly wheel, i almost hope thats what it is.
thanks for the help
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Old 10-30-2010, 07:26 PM
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had to say that didn't i. fly wheel key is sheared (thanks russ, it prob would have taken me a while to find that because the fly wheel is also tapered so it is still sorta held on) only problem is that the key was built into the flywheel, ebay here i come!
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Old 10-30-2010, 07:33 PM
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To prevent shearing problems, make absolutely sure that tapers are clean (alcohol or acetone) and that flywheel nut is torqued to factory spec.
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Old 10-30-2010, 09:26 PM
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lets just hope thats the only problem! a fly wheel is only like 4.50 so it shouldn't be too big a problem, just me going crazy waiting for it to come. i suppose i can call this a learning experience, so in one way its a good thing
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Old 10-30-2010, 11:00 PM
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ahh, i did that to 2 fhywheels. if your desperate, just weld it back on! lol!
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Old 10-31-2010, 09:33 AM
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i'm pretty sure its aluminum, and the crank is prob steel
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