95 EZ- GO troubleshooting

[crosswired]

A friend gave me a 96 TXT serial #957357 textron 27647-go1 Manf. code h0196 This what i know so far it came with only 5 6v.BAtt so my readings are going to be off. At the charger station is 44.1 the test i got off of EX GO runs like this B+-45.7 lead 10 45.9 lead 9 45.9 lead 5 44.1 lead 2 22.5 lead1 .7-.8 THe test showed #s on a 36v system where the lead 2 is13-15 and lead 1 is 0.4-1.6 I Took off both rear wheels the right one turns when you spin the left but when you spin thr right only the right one spins. THe motor humms when you depress the pedal but nothing turns. I really need to get the other batt. but if there are any ideas i am up for any thing. Sorry this is so long. Will keep it short from now on just had to get it all in.