Quote:
Originally Posted by Jessecollett
theres no oil entering the airbox, just fumes.
i'm waiting for a standard filter in the post, will stick that in when i get it.
as for the rebuild being done properly, probably not spot on but near enough.
i did my valves again this morning, they seem to go out of spec pretty quickly.
i've been doing it by putting it at the TDC where there's some movement in the valves and setting them appropriately, is this correct? as i know its not quite as straight forward as it seems
also, yesterday it started making a racket from what seemed like the top end. it started suddenly and was in time with the revs. i stopped the engine straight away and the noise had gone when started again. i'm thinking it could be the decompressor as i had started it with the kick start which i very rarely use.
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If you're happy with the rebuild then eliminate that concern. I'm assuming the valve timing is correct? check the marks on the cam drive gear
The clicking noise sounds like, as you say the de-compressor sticking.
As for the valve clearances going out of sync this should not happen. It sounds like you're setting the clearance , tightening the lock nut but not holding the bolt still with a screwdriver whilst nipping up the lock nut; it can slip around as you're tightening and change the gap. However, they would have to be so far out as to cause the problems you're experiencing.
When you set them are they at tdc on the compression stroke? Perhaps you have the engine at tdc on the exhaust stroke. As you turn the engine (remove the spark plug and use the kick start or rear wheel - make sure the engine is turning the correct way), watch the valves opening and closing... before you arrive at tdc on the compression stroke, the inlet valves should have just closed.
After you have set them turn the engine a few times and re-check.
If it still runs rough check the jets and needle and return to standard using the original air filter
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