I recently had an experience with something falling in the spark plug hole.
This last weekend something recently fell in, or got stuck on an exhaust valve while doing a valve clearance adjustment.
We did all the work on the bike, buttoned it back up, and went to start it, but no go, it wouldn't start.
After pulling the valve cover again, and checking the clearances, it turns out that one of the exhaust valves that was right on before with valve clearance (.007), now suddenly had tons more clearance (you could see daylight between the shim and cam).
After pulling off the cams to make sure nothing was obstructing it, we diagnosed that something was preventing the exhaust valve from closing completely.
We pulled off the exhaust, and sprayed a bunch of contact cleaner at the exhaust valves throught he exhaust port, while slowly hand cranking the engine.
Checked the valve clearance again, and it was back to the perfect .007. Button the bike back up and started perfectly.
Next time I pull the spark plug I'll be a little more careful about cleaning out the area around the spark plug before removing it.
--Terry
[This message has been edited by TerryMoto (edited 04 February 2004).]
[This message has been edited by TerryMoto (edited 06 February 2004).]
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--Terry
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