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| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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10-27-2013, 12:09 PM
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#21 |
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Not Yet Wild
Join Date: Sep 2013
Posts: 60
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Re: She lives!!!! But still have ?s
I don't think that it's clogged because it doesn't smoke at all but I'll try it and let you know how it goes
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10-27-2013, 12:36 PM
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#22 |
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Vegas modded 420
 Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: She lives!!!! But still have ?s
I've also seen them with a broken piston, part of the skirt was broken off. This can change flow through the engine if it does not blow up first. But the muffler issue is very common. Leaky seals will still run ok at high rpm much worse at idle and starting. Reed could cause issue but usually they stay open and the compression closes them when worn out so it does not run as well at lower rpm, or break and then it will not run right or start well at all.
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10-27-2013, 02:11 PM
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#23 |
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Not Yet Wild
Join Date: Sep 2013
Posts: 60
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Re: She lives!!!! But still have ?s
Well I rented a compression tester from auto zone because I keep forgetting mine at work and it stopped at about 88 89 psi but can I trust it. When I pulled the muffler off I looked inside the cylinder which looked good no visable scaring the rings move a lot with in the channels on the piston. It doesn't start right away with little throttle I have to press throttle hard to get it to startup and then the clutch slams in to gear not smooth at all.
Could this be a ring issue? Still not trusting gauge |
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10-27-2013, 04:58 PM
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#24 |
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Not Yet Wild
Join Date: Sep 2013
Posts: 60
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Re: She lives!!!! But still have ?s
I just realized something that I can take the starter generator a spin it all the way threw a complete stroke of the piston. On a 2 stroke I shouldn't be able to do that should I?
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10-27-2013, 05:14 PM
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#25 |
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Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: She lives!!!! But still have ?s
I don't remember the typical G1 compression off hand, but if the muffler was plugged it will rev more with it off or disconnected. It will not run that well without it, but better than if plugged.
2 stroke fires every time the piston goes up, it makes compression every time. The fuel air goes under the piston around the crank then gets pushed up through the ports to above the piston as the piston moves downwards, the exhaust blows out first and then the intake charge blows in from the ports, then the piston goes back up closes the ports, makes compression, fires, and does it all again. |
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10-28-2013, 07:46 AM
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#26 |
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Not Yet Wild
Join Date: Sep 2013
Posts: 60
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Re: She lives!!!! But still have ?s
I was thinking is there a governor in the rear end?
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10-28-2013, 05:05 PM
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#27 |
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Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,443
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Re: She lives!!!! But still have ?s
There is until you take the throttle cable off and put it on the carb direct, or drill out the arm so it spins on the shaft (shaft on top of trans).
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10-28-2013, 09:14 PM
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#28 |
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Not Yet Wild
Join Date: Sep 2013
Posts: 60
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Re: She lives!!!! But still have ?s
The cable is already direct to carb. I'm wondering if there is a governor with in the trans something I can't see from the outside
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10-29-2013, 08:40 AM
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#29 |
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Not Yet Wild
Join Date: Sep 2013
Posts: 60
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Re: She lives!!!! But still have ?s
Finally brought my compression tester home and tested in forward and reverse I got about 95 in forward and about 115 in reverse I'm guessing I should do rings which may solve a few issues
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