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Old 01-28-2012, 11:04 AM
aaronedwards82's Avatar
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99 500 non/HO spark/starting issues

Just picked up this bike up off Craigslist. It's in pretty good shape, just has been sitting for a while. Needs the brakes freed up and gone through, got the front master cylinder cleaned up and working. Rear brake works.
Put a new starter, carb, and battery in it, and cranks over, just no spark with the timing light. Put the timing light on the primary wire from the coil to the Cdi box the light shows fire. Checked out the coil, and it ohms out at the right ranges. .03 on primary side and 6400 on the secondary. I checked voltage from the CDi box and I want to say it was around .80 millivolts.
So, now I'm thinking the stator is bad so I checked the ohms on it and they are close to the specs but there is a little more resistance than there's supposed to be. Would it not be letting it build up enough voltage to send to the Cdi box and coil?
What else is there to check that I overlooked? I did clean the flywheel of rust for the pickup also.
Thanks in Advance,
Aaron

Last edited by aaronedwards82; 01-28-2012 at 11:07 AM. Reason: Forgot
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Old 01-28-2012, 04:05 PM
Russ C's Avatar
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clean the flywheel and pickup coil, probably all rusty
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Old 01-29-2012, 10:45 AM
aaronedwards82's Avatar
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Ok pulled flywheel, cleaned up rust and checked out stator. Everything looks ok.
I'm getting right around 45-47 volts coming out of the Cdi box going to primary on coil. Is that enough voltage to trigger the coil?
I checked the power coming from the stator, and green has 17 volts, black the same, and red had 20 volts AC. I cannot find the spec for the output of the stator anywhere, anyone have a clue?!?
Checked the resistance on the stator again, and it is within 2-3 ohms what it says in the fsm.
The coil is the same way. Right on the money for the resistance specification.

I'm leaning towards a weak Cdi box, or, stator weak and not putting out enough voltage to set off coil.

Anyone have any ideas???
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