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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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01-05-2012, 06:50 PM | #11 | |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: g1 timing ?'s
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So....I'm betting it's either carburation (next on the list) or clutches (also on my list). It just seems that this cart should have more oomph.... But I guess it is faster than my old 2004 EZGO TXT so maybe it's ok. I just don't have anything to compare it to. |
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01-08-2012, 01:53 AM | #12 |
Gone Wild
Join Date: Nov 2011
Posts: 232
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Re: g1 timing ?'s
If it throws gravel rooster tails in your driveway, it must be running pretty good. if it runs better in reverse than forward, then prolly not a carb problem. by the way, nice job on your build, looks real good. looks like a twin to mine, same paint scheme also , but mine is all stock.
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01-08-2012, 07:34 AM | #13 | |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: g1 timing ?'s
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01-08-2012, 08:49 PM | #14 |
Gone Wild
Join Date: Nov 2011
Posts: 232
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Re: g1 timing ?'s
don't have a build thread actually, all i've done so far was rebuild the motor. the rest is all stock. runs good , i'm very happy with it. this is my first cart and i think i'm addicted.
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01-08-2012, 10:34 PM | #15 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: g1 timing ?'s
If the rings are bad it will leak a lot when you turn it over by hand slowly, but hard to tell that way. 2 strokes need a good bore/rings to make power. I cut the head on mine, worked on the exhaust port height by hand, had the clutch apart a few times. These can also have plugged mufflers especially if they sound quiet at idle. Should be pretty easy to spin with GC tires, I used to smoke them on pavement it was funny. It would spin up any hill that was not paved, likely paved too if I could have found a steep enough one. But a stock one would always spin on grass/dirt up a hill it would never bog out.
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01-09-2012, 07:45 AM | #16 | |
Searching for The Way
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
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Re: g1 timing ?'s
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01-09-2012, 04:36 PM | #17 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: g1 timing ?'s
IIRC the are 6:1 compression, that is why cutting the head works. I hand sanded the top of the port around half to one mm higher best I recall. I had the head off and worked on it a little for days. Stupid way to do it but it was sitting there anyway. I marked the port then stopped when I got there, tapered it back out, emery cloth. Cleaned it really good and put the cut head on. Advantage I had is this was long ago and the carts were <5yr old or they turned them in for new ones lol.
Have you run it enough to break it in? You can put oil in there and try again that will seal the rings and you see an instant difference (on a gauge, if they are leaking). I used to lean off the left side of seat and hold brakes, floor it and it would spin the right tire on pavement without moving. It did all kinds of powerslides in gravel or wet grass. I would hang it sideways on wet grass at 6am in the morning all the way down 500yd fairways....going pretty fast. What a fun place to work it spoiled me for life lol, but the pay was not so great I had to leave. It would rev some and take off then the rpm went lower as it shifted and gained speed, until full shift then rpm went up. |
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