Question about Honda CB 750 Motorcycles
Sounds like you had an exhaust valve tighten up, check them at TDC top dead center by removing the alternator cover derby, put the bike in neutral, turn the flywheel in correct direction (arrow on it) until the TDC marks for 1 and 3 are aligned, check ex valves .003" or if you can barely feel them move is how I adjust them. :) If you lose compression or fire on a cylinder it becomes an oil syphon that will cause blue smoke and backfire as you had. It could also be a set of points closed up or a bad capacitor on the points. Intake valves are .002" .
Posted on Oct 08, 2009
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Posted on Jan 02, 2017
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