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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



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Old 05-29-2018, 09:48 AM   #1
70 gt
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Default G1 running very rich

I have a 1981 g1; replaced cylinder the piston had the carb off many times set the float different levels with no luck it's like the gas is just pouring in there. thank you for any help. gt 70
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Old 05-29-2018, 12:32 PM   #2
Spicyunicorn
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Default Re: G1 running very rich

How's the fuel pump it can allow fuel straight into the crank case if it's bad
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Old 05-29-2018, 03:47 PM   #3
70 gt
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Default Re: G1 running very rich

Thanks for replying. So its filling the carb and crankcase at the same time I really hope that's it I've tried everything.
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Old 05-29-2018, 09:45 PM   #4
Spicyunicorn
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Default Re: G1 running very rich

On fuel pumps you have three connections one going to the fuel tank one going to the carb and one going to crank case the crank case creates a pulse this is actually what "pumps" the fuel if the diaphragm is ripped it will allow fuel to go directly into the crank case
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Old 05-30-2018, 04:42 PM   #5
mikeasis
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Default Re: G1 running very rich

lines hooked up incorrectly?
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Old 05-30-2018, 08:15 PM   #6
CP241
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Default Re: G1 running very rich

Quote:
Originally Posted by Spicyunicorn View Post
On fuel pumps you have three connections one going to the fuel tank one going to the carb and one going to crank case the crank case creates a pulse this is actually what "pumps" the fuel if the diaphragm is ripped it will allow fuel to go directly into the crank case
Good point! Pull the pulse line off and see if it smells like fuel. It shouldn't.

Have you tried just using a squirt bottle or something, disconnecting the fuel pump and gravity feeding the carb? If gravity feed works fine then I'd replace the fuel pump. If gravity feed still floods it out then look at the carb closer or replace it.
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Old 05-30-2018, 09:06 PM   #7
Lochlin
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Default Re: G1 running very rich

Quote:
Originally Posted by mikeasis View Post
lines hooked up incorrectly?


Is the cart running at all.?
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Old 05-31-2018, 09:46 PM   #8
70 gt
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Default Re: G1 running very rich

Thank you spicy unicorn that was the issue! And thanks to everyone else who helped out
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