G9 won't turn off or accelerate

[cgtech]

I tried the diode rig job on a forklift once that had the same problem, it worked, for a few days then burned the diode. Forklift was super old & hard/expensive to find parts for, hence the rig job. Ended up fixing it right way. And the "stop solenoid" mentioned only exists on G16 and newer carts, not G9.

[sho305]

IIRC the VR fails and is able to power the white/red wire that runs everything.

[Flintrock]

Originally Posted by sformal

I thought it was when the engine is not stopping from "running", I mean on petrol, not by the starter...

..but even, it would suppress any "back feed" if it is the trouble.

Well, there's your problem. Try putting some gas in it......

[sformal]

Originally Posted by Flintrock

Well, there's your problem. Try putting some gas in it......

I do not understand...

CGTech

If I understood, the voltage regulator is receiving the + signal from the RW and depending of the voltage level, apply (or not) a - signal on the GREEN to the starter, am I right?

In such case, where a backfeed can come from if the RW is cut by the throttle switch and/or the main switch (with key)?

To be frank, I start to have the trouble but I am waiting a new ignition coil (no firing when hot), so it can be linked also. By the way, I am interested to "isolate" what can be once the switch is off. I changed my VR last year and succeeded to find the adjustable VR I absolutely want to keep (at 15.5V, the electronic is too high for me).

[garythegrinder@mail.com]

You need to run a ground wire from the negative battery to the engine block.
Some place in all that wiring mess on the engine pan is a bad ground connection. I work on a Clublink golf course, and 155 assorted golf carts to look after, and 2 of them are G-9s.
They both developed tis problem. I sept hours checking all the relevant switches, solenoid, VR, (out of cart bench test}, and this was this was the only solution.
These carts have been obsoleted by Yamaha years ago.
But these are nice carts!
Gary.