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CB360 Timing adjustment way off

396 Views 4 Replies 3 Participants Last post by  Scramblr
Hey all, so while tuning my CB360 using a timing light, the only way to get the strobe to pulse at LF and F for each cylinder respectively is to rotate the points wheel very far counter clockwise to the point where I cant put the points cover back on the head. Do I have the points cam put in backwards? Or is my cam misaligned? I would appreciate if someone could take a picture of the key location on the end of the cam while the bike is at LF on compression, or some other comparable position. Thanks! Picture attached of how far I have to rotate the mechanism!
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Sounds like you need to check out the spark advancer, it may need to be freed up and lubed.
Sounds like you need to check out the spark advancer, it may need to be freed up and lubed.
Already did. Its fully freed up and lubed. Maybe I placed the actual timing cam 180 degrees out of alignment when I reinstalled it in the advancer? I will check.
The alignment pin should be at the 12 o'clock, with the crank at the "LT" mark lined up with the pointer. Roll it forward one turn, to the firing position, and the pin will be at 6 o'clock, the left hand set of points beginning to open.
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The left piston on the compression stroke just after the intake valve closes, will line up the rotor LF mark when the camshaft key at the bottom 6 o'clock. The keyway is only visible with the points plate and advance mechanism removed, which I did to confirm this for you. See here the LF mark and the cam key, plus my points plate adjustment for comparison.

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