Tweet
I have checked everything, so I think I have... Everything checks out per the diagnostic sequence in the service manual.. It pointed to the Ignitor.. So I replaced it and same thing... Intermittent spark.. I can ground a new plug and have spark, put that plug into the head and tighten, nothing, not even a backfire... Pull that same plug out and ground it on the motor again, then have spark and then no spark... What is up with this thing.. Any help would be great...
-
-
Going with a trusted source like Vintage Golf Cart Parts is key here as many aftermarket ignitors or the ones you see online are clones built with cheaper components that can lead to failure straight out of the box.
For instance, if the capacitor inside the ignitor has a lower microfarad rating than specified, it won’t hold charge correctly leading to inconsistent spark. The resistors in these lower quality ignitors also tend to have a higher tolerance range, which means they vary more from the needed resistance impacting the voltage regulation and timing precision.
Besides the ignitor, check and clean your grounds thoroughly. Poor grounding can mimic ignitor failure symptoms by interrupting the spark intermittently. Start with the main ground connection from the engine block to the frame. If you suspect any resistance, the ground may need cleaning. Remove the ground wire, clean both the wire end and contact points with a wire brush until its bright and clean, and reattach it securely. Afterward, you can apply dielectric grease to protect against corrosion.
The OEM ignitor part number you’re looking for is typically JG5-82305-01-00, JG5-82305-02, or JG5-82305-02-00 and runs on Yamaha G9 models from 1991 to 1995
Comment