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CB77 type 1 ignition timing

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Ken184
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Posts: 50
Joined: Thu Oct 18, 2012 7:55 pm
Location: Guilford, CT

CB77 type 1 ignition timing

Post by Ken184 » Thu Oct 25, 2012 9:09 am

Doing this for first time, following instructions in owner's manual. When i try to line up the right side timing mark (by rotating the rear wheel forward in third gear) i can't get the rotor to stop. i just wants to rotate past the mark and stop after an inch or so of travel. feels like the crank weight is pulling it. i have actually had to use a wrench to hold the rotor in place. can anyone help me understand what's going on?

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jleewebb
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Posts: 472
Joined: Fri Jun 08, 2007 3:37 pm
Location: travis county, tx

try this

Post by jleewebb » Thu Oct 25, 2012 9:49 am

try this...removing the spark plugs can help too but not really necessary.
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setting timing.JPG
'62 CB77. "It's a rider."

56_oval
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Joined: Sun Oct 24, 2010 2:37 am
Location: Dallas, TX

Post by 56_oval » Thu Oct 25, 2012 1:56 pm

Lee is correct. You can use a pair of vise grips or have someone else hold a wrench. It's the valve springs pushing on the cam that causes it to go past the intended point.

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