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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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07-19-2010, 08:03 PM | #1 |
Not Yet Wild
Join Date: May 2010
Posts: 1
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Jetting 91 G9
Hey guys!
First I want to say this a great forum. I have spend many an hour reading! I bought my first cart (91 G9) a few months ago. I bought it for my wife and kids to get around in our small town. Of course I can't ever leave anything alone and bought wheels and tires, back seats, bumper, and windshield. Last week I received my Plowman's kit. Installed exhaust and driven clutch with the red spring. The problem is the jetting that came with the kit. I have gutted the air box and it was really rich. It would not rev out until I leaned the jetting. I have the stock pilot back in it with spare jet drilled to .040. It runs O.K. but still has a little lag pulling through the powerband. The richer I go the worse it gets. The thing I don't under stand is the plug looks lean. Does anyone have suggestions or experience with jetting a G9 with exhaust and gutted air box. On a side note the motor is freshly rebuilt and ran great before I started with the hop up:) |
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07-22-2010, 09:36 AM | #2 |
gone yamaha!
Join Date: Sep 2008
Location: ontario, canada
Posts: 1,424
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Re: Jetting 91 G9
run it with the plowmans jets and then pull the plug and make sure it is really rich, black plug colour. also make sure your mixture screw is set 1 1/2 turns out after being lightly seated. (and its the larger screw with the spring on it, on the gas tank side of the carb.)
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07-22-2010, 09:37 AM | #3 |
gone yamaha!
Join Date: Sep 2008
Location: ontario, canada
Posts: 1,424
|
Re: Jetting 91 G9
i've got a k+n filter, moded exaust and she runs great, with the plowmans jet kit.
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