1980 Yamaha (I think) runs only choke fully out

Vander41 · 06-26-2021, 04:13 PM

I believe it's an old G1 Yamaha golf cart. Only runs with the choke pulled all the way out. Don't see any air leaks. Assuming it's fuel injector? Carb? Any ideas?

mikeasis · 06-27-2021, 08:52 AM

If it’s an 80 G1 and your having to choke it a lot it’s time for crank seals

Lochlin · 06-28-2021, 08:33 AM

If you having to choke then you almost certainly have an air leak. Crank seals are always suspect. Other places to check are the read valve, head and base cylinder gaskets.

slonomo · 07-01-2021, 05:49 AM

Crank seals are always suspect on a G1. But, as was already stated, the air leak can be anywhere.

While the cart is running, spray a little carb spray around the head gaskets and intake area and listen for a change in engine. If you spray carb cleaner around the crank seals, same thing, but be careful the carb spray can eat the rubber, just spray a tiny amount. Ether would also work, but highly explosive so do so sparingly and at your own risk. Propane also works.

06-26-2021, 04:13 PM	#1
Vander41 Not Yet Wild Join Date: Jun 2021 Posts: 1	1980 Yamaha (I think) runs only choke fully out I believe it's an old G1 Yamaha golf cart. Only runs with the choke pulled all the way out. Don't see any air leaks. Assuming it's fuel injector? Carb? Any ideas?
Vander41 Not Yet Wild Join Date: Jun 2021 Posts: 1

06-27-2021, 08:52 AM	#2
mikeasis Gone Wild Join Date: Jan 2017 Location: venice Posts: 1,807	Re: 1980 Yamaha (I think) runs only choke fully out If it’s an 80 G1 and your having to choke it a lot it’s time for crank seals

06-28-2021, 08:33 AM	#3
Lochlin Gone Wild Join Date: May 2011 Location: Pittsburgh Posts: 2,943	Re: 1980 Yamaha (I think) runs only choke fully out If you having to choke then you almost certainly have an air leak. Crank seals are always suspect. Other places to check are the read valve, head and base cylinder gaskets.

07-01-2021, 05:49 AM	#4
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: 1980 Yamaha (I think) runs only choke fully out Crank seals are always suspect on a G1. But, as was already stated, the air leak can be anywhere. While the cart is running, spray a little carb spray around the head gaskets and intake area and listen for a change in engine. If you spray carb cleaner around the crank seals, same thing, but be careful the carb spray can eat the rubber, just spray a tiny amount. Ether would also work, but highly explosive so do so sparingly and at your own risk. Propane also works.

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