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| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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02-08-2017, 07:21 AM
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#1 |
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Not Yet Wild
Join Date: Nov 2016
Posts: 17
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Engine Rebuild - 'Cough'
I recently rebuilt my G29 Golf cart motor.
Did a .25MM bore job new piston, rings and seals, also reworked the head and new valves. I have one issue that I was looking for some guidance. If I accelerate by pressing the gas pedal all the way to the floor from a complete stop, it will 'cough' (not sure of the proper technical term) one time. On occasion if I am at full throttle and completely release the gas it will also cough. I checked the Valves 5 times @ TDC prior to putting motor back in they are at .004. I have also checked it in the golf cart and it is at .004. Thanks, |
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02-08-2017, 09:38 AM
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#2 |
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Gone Wild
Join Date: Jun 2016
Posts: 623
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Re: Engine Rebuild - 'Cough'
My guess is that you need to reject the carb. If you've got more air entering and exiting the engine now with your modifications I would think a fuel adjustment is needed.
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02-08-2017, 02:47 PM
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#3 |
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Gone Wild
 Join Date: Jul 2008
Location: Reddick IL
Posts: 11,220
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Re: Engine Rebuild - 'Cough'
Try enriching the idle mixture, not having an accelerator pump you need a little more fuel to carry through the momentary drop in vacuum.
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02-08-2017, 07:31 PM
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#4 |
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Not Yet Wild
Join Date: Nov 2016
Posts: 17
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Re: Engine Rebuild - 'Cough'
That was it I enriched the idle mixture and no more problem.
Thanks |
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02-08-2017, 08:10 PM
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#5 |
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Gone Wild
Join Date: Dec 2009
Location: Corpus Christi, TX
Posts: 1,644
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Re: Engine Rebuild - 'Cough'
What clutches are you running in your cart?
Stock team or the newer design ones? |
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02-09-2017, 05:52 PM
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#6 |
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Not Yet Wild
Join Date: Nov 2016
Posts: 17
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Re: Engine Rebuild - 'Cough'
Stock Team
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02-09-2017, 06:28 PM
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#7 |
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Gone Wild
Join Date: Dec 2009
Location: Corpus Christi, TX
Posts: 1,644
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Re: Engine Rebuild - 'Cough'
Are your clutches the original ones and are they any good?
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