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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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07-02-2011, 04:43 PM | #1 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
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G1 Carb question - possible missing seal? (pic)
I got my brand new used G1 Yamaha this week. It is my first cart. I am not a stranger to turning wrenches, but my experience with small engines is limited. I have been digging into the forum and trying to form a plan of attack on the cart. Today, I cleaned the carb up really good, and i noticed what I think is a problem. Where the gov links to the carb (see pic), there is a lot of play in the shaft that opens and closes the flap inside the carb (on the engine side). It looks like there should be some sort of seal around that shaft. Could that opening around the shaft be sucking in air? I am having to run the cart with the choke pulled out. It is under-whelming to say the least. I am BBQ-ing my muffler as I type this, and my air intake is sealed really good.
Any advice would be appreciated. Thanks, Kevin |
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07-03-2011, 08:35 AM | #2 |
Gone Wild
Join Date: Jun 2009
Location: Heluvabump,VT
Posts: 623
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Re: G1 Carb question - possible missing seal? (pic)
The throttle shaft hole in the carb is worn/ loose causing an air leak and making the engine run lean. That is why you have to use the choke to get it to run. This is pretty common on these old buggies. Generally you must replace the carb to fix the problem, but I have heard of people fabricating a bushing to take up the gap. Maybe someone will chime in with a description of how they did it.
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07-03-2011, 02:31 PM | #3 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
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Re: G1 Carb question - possible missing seal? (pic)
That is what I was afraid of. I looked at the carb on my generator, and it was nice and tight at that location. I prob could fabricate a bushing, but the Phillip head screws holding the flap on the shaft are stripped out. I guess the old saying is true. Nothing easy is worthwhile. It is just too dang hot out today. I am going to spend time doing research this afternoon and work on my cart tomorrow morning.
If I replace the carb, is there an aftermarket version that is recommended? |
07-03-2011, 08:30 PM | #4 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
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Re: G1 Carb question - possible missing seal? (pic)
I have decided th Jb weld the hole closed, and redrill the opening for the throttle body shaft. I will document the process, and post results. I will start early in the morning. I figure I have nothing to lose before I buy a new carb.
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07-04-2011, 12:11 PM | #5 |
Gone Wild
Join Date: Jul 2008
Location: Reddick IL
Posts: 11,220
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Re: G1 Carb question - possible missing seal? (pic)
May be a faucet washer sanded to a taper that would fit the wallowed out opening
would seal it. you could slit it and slip it on. |
07-04-2011, 03:22 PM | #6 |
Gone Wild
Join Date: Jul 2011
Location: Central Arkansas
Posts: 166
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Re: G1 Carb question - possible missing seal? (pic)
Thanks for the advice DOOmsman! I fixed it this morning, and I did something very similar. I am going to post a thread with pics that show the repair.
Kevin |
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