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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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09-24-2020, 06:59 PM | #1 |
Not Yet Wild
Join Date: Sep 2020
Posts: 4
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G9 stopped running / won't run
160 plus compression
valve lash correct good gas at carb didn't seem to have spark, after replacing ignitor now does can not seem to get anything other than occasional backfiring thru carb. Was a running cart used weekly, then ran sluggish and parked and never again would run. I'have extensive automotive / drag race experience / builds and this dopey thing has me baffled. Help! |
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09-25-2020, 07:13 AM | #2 |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: G9 stopped running / won't run
It sounds like the problem is in the primary ignition system (Pulse coil, CDI). No way to know until you replace the parts. I suppose somewhere in the service manual you will find the specs on testing the resistance on those parts with a meter. Download the service manual, start there.
Also verify that the carb is genuine "Mikuni" and clean it well and spray the jets out. Check the throttle butterfly shaft for play. The Mikuni is 100 times better than any aftermarket "Mokini" china carb. |
09-27-2020, 10:46 AM | #3 |
Nincompoop village idiot
Join Date: Apr 2018
Location: Michigan
Posts: 9,669
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Re: G9 stopped running / won't run
Hook a timing light up to the spark plug wire and watch the light flash. If you replaced the igniter with an aftermarket one I’ll bet dollars to donuts you’ll see that it’s either losing spark, or sparking erratically.
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