KTM 65 SX

Question

So i bought a sx65 a while back for my daughter that had some engine issues. turned out to be locked up but i never figured out why. i replaced the crank and bearings along a new top end. now this thing will not start. I have good fire with the plug pulled, seems to have good compression. but i can hardly so much as a pop out of the the exhaust port with the pipe off. it has fuel, and the carb is clean. and suggestions ?

Dal 6 years 0 Answers 1254 views 0

Answers ( No )

    0

    Put the pipe on and try to start it.

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    Timing? Is the stator on in the right position?

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    I have tryed with pipe on so it had some back pressure

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    I thought the same thing but the Mark is lined up when piston is at the top so it has to be fairly close

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    The Reeds look good bit chipped or anything but they might not be sealing 100, I know on bigger motors that’s not. Big deal but these little.motors seem way.more sensitive

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    Put a little gas down the spark plug hole then kick it

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    Does know what kinda compression these should have ? IM wounding if I have to much base gasket and it has low compression. It definitely has some just might not me enough

    0

    Check ignition timing.

    0

    Piston in backwards?

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