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Unread 10-28-2010, 05:28 PM   #1
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Default 1990 Club Car slow reverse

Please bare with me until about 5 min ago i did not know what a Thread was and i cant find the spell check but i just got a clud car and i am haven some problems and i cant find a manual
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Unread 10-28-2010, 05:41 PM   #2
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Default Re: 1990 Club Car slow reverse

YOUR DOING JUST FINE. Most golf carts use 1/2 power for reverse ( tap off of center of battery pack ) EXAMPLE ( 36 volt battery pack uses 18 volts for reverse ) this is required for new carts for safety reasons. Depending on type of controls that switch from forward to reverse you can change wiring to give you full speed? Also this can be a indication of a bad-weak battery in group that feeds reverse, so do a digital voltage and hydrometer test of each cell of each battery to narrow problem down?
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Unread 10-29-2010, 10:35 AM   #3
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Default Re: 1990 Club Car slow reverse

Thanks but if I stop on the grass or just a little incline it will not back up i have to push to get it started
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Unread 10-29-2010, 10:55 AM   #4
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Default Re: 1990 Club Car slow reverse

Check your batterys first, I recommend a digital voltmeter ( Harbor Freight $5.-$7. ) take readings on each battery in pack and record and post to forum, and compare with STICKIES "STATE OF CHARGE READINGS" SECOND using a single float temperature correcting hydrometer ( not a antifreeze multi float unit ) ( auto parts stores $5. ) and compare with stickies under subject "STATE OF CHARGE READINGS" then post so forum can see condition. Once battery condition is known then forum can take you through the testing process to solve your problem.
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Unread 10-29-2010, 11:35 AM   #5
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Default Re: 1990 Club Car slow reverse

A 90 CC is 36v resistor coil cart, I believe....
Reverse is wired for 1/2 power.... a missed connection at the batteries could leave you with even less power.... Check the green cable coming from the bottom of the F&R switch to the batteries.... it originally connected to the Positive post of #3 battery = 18v. You can simply disconnect the battery end f the green cable and reconnect it to the other connection at the bottom of the F&R switch.(where red cable connects) this will give 36v to reverse....

This is a quick no cost fix ..... a better fix would be to fashion an appropriate buss bar connection across the two bottom lugs on the F&R switch and eliminate the green cable IF full power reverse is wanted.....
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File Type: jpg CC F&R 80s.jpg (58.2 KB, 23 views)
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Unread 10-29-2010, 12:22 PM   #6
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Default Re: 1990 Club Car slow reverse

Just bought the batterys last month
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Unread 10-29-2010, 12:24 PM   #7
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Default Re: 1990 Club Car slow reverse

i will check the wires when get home tonight

Thanks
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Unread 10-29-2010, 12:28 PM   #8
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Default Re: 1990 Club Car slow reverse

I read something online that said if you upgrade the battery wires you get more speed they wanted to sell me 4ga wires do you think this will make a difference
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Unread 10-29-2010, 01:16 PM   #9
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Default Re: 1990 Club Car slow reverse

OSWGREGC--If you only purchased new batterys last month they are not broken in yet and will not yeld anywhere near full power yet.
Proper battery break in is to charge BEFORE first use, then for the next 30-50 discharge-charge cycles never run batterys below 75% of charge before allowing charger to bring back to FULL CHARGED CONDITION. Once break in is over you will notice a major difference in power and performance. NOTE Quality of batterys purchased makes a major difference also, light duty, auto type rather than electric vehicle batterys will not perform well?
4 gauge battery cables will help make a minor difference UNLESS your cables have high resistance, poor connections, etc, OR you update parts like motor, controller, F&R control, increase pack voltage.
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