Fuel in the Crank Case

pasty64 · 07-23-2016, 06:29 PM

My families cart has fuel in the crank case and blown up in the air filter, dip stick tube is filled right to the top. It's a 2002 G16. Recently was rolled on it's side in a minor mishap although I don't think that had much to do with this. It had a fuel issue not too long ago and started to die while running. We cleaned the carb and it seemed to work better. I'm thinking fuel pump for both issues but just wanted to double check before buying parts.

Golf cart guy · 07-23-2016, 06:38 PM

Most common is a stuck float in the carb. Taking the carb completely apart, using compressed air will fix the issue. A very small percent of the time, the issue is with the fuel pump. I know you said you cleaned the carb, but I would give it another go.

smokindawg · 07-23-2016, 08:47 PM

When you take the carb apart look closely at the needle and seat under the float. I'd say you have a problem there. Either trash build up, a worn needle or stuck. It may also have a rubber tip on the point end and those are known to sometimes come off the metal part of the needle.

cgtech · 07-24-2016, 03:33 AM

the needle.is "rubber tipped", and is known to get a ring worn into the end that allows erratic fuel problems. with your described problem, i would drain the oil asap, and order a needle valve. i have never seen a yamaha with the "sunken float" people speak of. fuel pump is also a possible cause, but a very rare one.

pasty64 · 07-24-2016, 04:18 PM

Thanks for the info guys. I brought it home today to work on and as soon as it's not too hot I'll check things out.

dbmachine · 07-24-2016, 09:54 PM

If you live in the Deep South like me it's gonna be hot for many more months. Lol

07-23-2016, 06:29 PM	#1
pasty64 Not Yet Wild Join Date: Mar 2009 Posts: 29	Fuel in the Crank Case My families cart has fuel in the crank case and blown up in the air filter, dip stick tube is filled right to the top. It's a 2002 G16. Recently was rolled on it's side in a minor mishap although I don't think that had much to do with this. It had a fuel issue not too long ago and started to die while running. We cleaned the carb and it seemed to work better. I'm thinking fuel pump for both issues but just wanted to double check before buying parts.
pasty64 Not Yet Wild Join Date: Mar 2009 Posts: 29

07-23-2016, 06:38 PM	#2
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: Fuel in the Crank Case Most common is a stuck float in the carb. Taking the carb completely apart, using compressed air will fix the issue. A very small percent of the time, the issue is with the fuel pump. I know you said you cleaned the carb, but I would give it another go.

07-23-2016, 08:47 PM	#3
smokindawg Gone Wild Join Date: Sep 2012 Location: Missouri Posts: 2,755	Re: Fuel in the Crank Case When you take the carb apart look closely at the needle and seat under the float. I'd say you have a problem there. Either trash build up, a worn needle or stuck. It may also have a rubber tip on the point end and those are known to sometimes come off the metal part of the needle.

07-24-2016, 03:33 AM	#4
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: Fuel in the Crank Case the needle.is "rubber tipped", and is known to get a ring worn into the end that allows erratic fuel problems. with your described problem, i would drain the oil asap, and order a needle valve. i have never seen a yamaha with the "sunken float" people speak of. fuel pump is also a possible cause, but a very rare one.

07-24-2016, 04:18 PM	#5
pasty64 Not Yet Wild Join Date: Mar 2009 Posts: 29	Re: Fuel in the Crank Case Thanks for the info guys. I brought it home today to work on and as soon as it's not too hot I'll check things out.
pasty64 Not Yet Wild Join Date: Mar 2009 Posts: 29

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07-24-2016, 09:54 PM	#6
dbmachine Gone Wild Join Date: Oct 2012 Posts: 1,733	Re: Fuel in the Crank Case If you live in the Deep South like me it's gonna be hot for many more months. Lol
dbmachine Gone Wild Join Date: Oct 2012 Posts: 1,733

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