Yamaha G1 goes in reverse but not forward

yamaha G1 owner · 09-08-2014, 05:37 PM

My Yamaha G1 runs in reverse just fine but when put into forward will just make a clicking noise, sometimes after depressing the accelerator a number of times it does start running, it seems to have got progressively worse. Please check video.

1989Marathon · 09-08-2014, 06:20 PM

Welcome to BGW!
It sounds like a dirty FWD solenoid contact. Some are rebuildable, some are not.

yamaha G1 owner · 09-08-2014, 07:31 PM

How do I tell which solenoid is for forward and which is for reverse

1989Marathon · 09-08-2014, 07:32 PM

The one with the yellow wire on it is the FWD solenoid.
REV should have a light blue wire.

yamaha G1 owner · 09-08-2014, 08:06 PM

Thanks 1989Marthon, I am amazed at the knowledge people on this site have in regards to these carts.
What is it that I need to do in order to rebuild this dirty contact?

1989Marathon · 09-08-2014, 08:12 PM

Can you post a pic of the solenoid? Some are not able to be opened. What year is the cart?
If all else fails, you can swap the solenoids so the problem is in reverse until you can either fix or purchase a new one.

yamaha G1 owner · 09-09-2014, 05:36 PM

Here is a pic of solenoids and movie of problem. Can you please explain to me how I go about swapping the solenoids.

1989Marathon · 09-09-2014, 05:59 PM

No need to swap them. The FWD solenoid should be the upper one in your pic.
Take several pics of all the connections. Disconnect the battery. Did I mention disconnect the battery? Oh yeah, disconnect the battery.
Remove the wires from the FWD solenoid. There is also a bus-bar that connects the 2 solenoids together. That will need to come off also.
Remove the 4 bolts at the outer corners of the solenoid and you should be able to remove the internals to get at the contacts.
It looks like the strap connecting the rear of the 2 solenoids needs to be removed also.

yamaha G1 owner · 09-10-2014, 07:00 PM

Please take a look at pics of crusty solenoid contacts, could this be the reason I don't have forward just reverse?

1989Marathon · 09-10-2014, 07:02 PM

Yes. Clean everything up and put it back together. If you can get some dielectric grease, apply it to the contacts after cleaning them.

09-08-2014, 05:37 PM	#1
yamaha G1 owner Not Yet Wild Join Date: Jul 2012 Location: South Australia Posts: 34	Yamaha G1 goes in reverse but not forward My Yamaha G1 runs in reverse just fine but when put into forward will just make a clicking noise, sometimes after depressing the accelerator a number of times it does start running, it seems to have got progressively worse. Please check video.

09-08-2014, 06:20 PM	#2
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Yamaha G1 goes in reverse but not forward Welcome to BGW! It sounds like a dirty FWD solenoid contact. Some are rebuildable, some are not.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-08-2014, 07:31 PM	#3
yamaha G1 owner Not Yet Wild Join Date: Jul 2012 Location: South Australia Posts: 34	Re: Yamaha G1 goes in reverse but not forward How do I tell which solenoid is for forward and which is for reverse

09-08-2014, 07:32 PM	#4
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Yamaha G1 goes in reverse but not forward The one with the yellow wire on it is the FWD solenoid. REV should have a light blue wire.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-08-2014, 08:06 PM	#5
yamaha G1 owner Not Yet Wild Join Date: Jul 2012 Location: South Australia Posts: 34	Re: Yamaha G1 goes in reverse but not forward Thanks 1989Marthon, I am amazed at the knowledge people on this site have in regards to these carts. What is it that I need to do in order to rebuild this dirty contact?

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09-08-2014, 08:12 PM	#6
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Yamaha G1 goes in reverse but not forward Can you post a pic of the solenoid? Some are not able to be opened. What year is the cart? If all else fails, you can swap the solenoids so the problem is in reverse until you can either fix or purchase a new one.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-09-2014, 05:59 PM	#8
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Yamaha G1 goes in reverse but not forward No need to swap them. The FWD solenoid should be the upper one in your pic. Take several pics of all the connections. Disconnect the battery. Did I mention disconnect the battery? Oh yeah, disconnect the battery. Remove the wires from the FWD solenoid. There is also a bus-bar that connects the 2 solenoids together. That will need to come off also. Remove the 4 bolts at the outer corners of the solenoid and you should be able to remove the internals to get at the contacts. It looks like the strap connecting the rear of the 2 solenoids needs to be removed also.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-10-2014, 07:02 PM	#10
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Yamaha G1 goes in reverse but not forward Yes. Clean everything up and put it back together. If you can get some dielectric grease, apply it to the contacts after cleaning them.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

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