Question about 1970 Honda CB 100
You need to check for 12 volts on the coil with the switch on. If the points are open the coil should have 12 volts on both sides, if the points are closed you should only have voltage on the coil positive side. recheck all wiring from the coil to the points/condenser plate, check the wire at the points connection should be hot with the switch on and the points open. The point plate should be grounded. Check for any oil or grease in between the points contacts, the contacts have to be dry. Last check for the rotor shaft to be turning, as you turn the engine the rotor shaft should turn with the engine to open and close the points. recheck your gap and be sure the plate does not move up/down.
Posted on Aug 28, 2010
Testimonial: "Thanks, I'll check the plate for ground and voltage."
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Posted on Jan 02, 2017
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