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| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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11-22-2017, 11:09 AM
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#1 |
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Not Yet Wild
Join Date: Feb 2017
Posts: 17
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91 G8 gas more power in reverse than forward
I have a 91 G8 that runs sluggish in forward and wont pull hills. I have taken the carb apart and cleaned and put back together with no noticeable results. I have taken most of the wire connectors apart and cleaned with contact cleaner. changed the spark plug. put in a new air filter and made sure that the air box is sealed. The one thing I did that made a difference was I unhooked the micro switch for the reverse buzzer and that made the cart run sluggish and with no power in both forward and reverse, so I reconnected it and it made the cart return to responsive and full power in reverse but no change at all to forward.
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11-22-2017, 11:18 AM
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#2 |
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Gone Wild
Join Date: Jun 2015
Location: NW Iowa
Posts: 1,669
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Re: 91 G8 gas more power in reverse than forward
After running the cart in forward or awhile and pull the plug see what it looks like. Have you done a compression check? Reverse is geared a little higher than forward have you ran the cart in nuetral and watched the clutches to see if they are shifting properly?
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11-22-2017, 11:34 AM
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#3 |
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Not Yet Wild
Join Date: Feb 2017
Posts: 17
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Re: 91 G8 gas more power in reverse than forward
Compression on the motor was 160. I will take a look at the oil again but it was just changed also. And I have looked at the clutches they appear to be working correctly, I do see that the secondary is missing a button but it appears to be working. What I thought was weird was when i am in reverse with the micro switch connected it will pulls hills but only in reverse not forward but when I disconnect the switch it will not pull a hill in either gear.
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11-22-2017, 12:15 PM
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#4 |
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maintaining a low profile
 Join Date: Oct 2009
Location: SW Virginia USA
Posts: 6,314
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Re: 91 G8 gas more power in reverse than forward
The clutch spring seat should have all of the ramps installed. New ones will make a difference. A Yamaha u-max spring is a cheap investment for more torque. Condition of the secondary sheaves and drive belt width is important. Replace if less than 1 1/16" wide. Reverse is a lower ratio--higher numerically--than forward.
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11-22-2017, 02:31 PM
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#5 |
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Not Yet Wild
Join Date: Feb 2017
Posts: 17
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Re: 91 G8 gas more power in reverse than forward
Just wondering why disconnecting the micro switch makes it run worse?
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11-22-2017, 03:09 PM
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#6 | |
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maintaining a low profile
Join Date: Oct 2009
Location: SW Virginia USA
Posts: 6,314
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Re: 91 G8 gas more power in reverse than forward
Quote:
https://www.cunninghamgolfcar.com/Im...maha%20G8A.pdf |
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