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Discussion Starter #1
72 CB350. I purchased this bike used and I’m slowly going through maintenance and fixing any issues I uncover. I was able to successfully ride the bike for 10 minutes a few weeks ago.

I thought I read that when The stator mark is on LT on the compression stroke - the cam pin should be at the 12:00 position - by removing the advancer unit. Mine is at the 6:00 position. I verified that the left piston is TDC and both left valves are loose. Is it possible to have the cam timing off 180 degrees and still run ok?
 

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Turn the generator 360 and it'll be on 12 o clock.

Edit: to confirm stroke, watch or feel for the intake valve to open. When it closes then that's the compression stroke
 

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Discussion Starter #3
Doode, my question is to confirm that the PO has the cam timing correct. On LT on the compression stroke, should the cam pin be at the 12:00 or 6:00 position?
 

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Well, the lobe and pin position are pretty set, so it's not like the stroke and pin relationship can switch. When building the engine and setting the cam crank relationship, I mostly look that the pin is 12 o clock at lt due to the cam sprocket line. I never paid attention to what stroke it was
 

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Discussion Starter #6
Thanks for the link Doode. Hmmm, according to that link, my cam pin is off 180 degrees because my cam pin is at the 6:00 position on TDC - LT on the compression stroke.
 

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Discussion Starter #9
Doode, I verified that I’m on the compression stroke by verifying left piston on TDC through the spark plug hole. Also both left valves are loose. That’s correct right?
 
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