Join Date: Dec 2011
Location: Central Florida
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I keep killing CDI's
I've been away for a while because I had sold my Beloved RC51 to help pay some bills. Well, I just acquired another one! Yippee! But this one has a problem. When I got it she hadn't been started in about 5 years and I got her for a song. Now I know why. She had no spark so I assumed the CDI was bad. My Brother had a couple of spares that he gave me to try out. I plugged the new CDI in and Voila! She started. (Of course I had replaced the old gas, oil, brake fluid, etc.). I immediately put a multi-meter on the battery terminals and was getting about 14.5v DC at the battery. I'm a little sketchy on how to test the other components that could cause the CDI to burn up so any insight on that would be awesome because after 2 miles and back to my driveway the bike stalled. I checked the spark again and had nothing... again! So I assumed I burned up a second CDI. I was able to resurrect the first CDI by getting the 2 pairs of Transistors and replacing them per the instructions I found online. She starts again but I don't really want to run her for long until I test the other likely components.
Could it still be the Stator even if it seemed to be charging correctly?
How do I test the rectifier? Preferably without running the bike?
Is there something else I should be looking at as well?
Thanks in advance!