95 G14 Electrical Issues

[docbuckeye]

I have a 95 G14 gas, it is having starting issues...I am new to these carts...sometimes it will turn over and crank and start other times nothing...I replaced a bad ignition relay...when it does not crank over the red/white wire from the pedal to the relay and the ground wire on the relay show no volts, therefore no cranking, however if I measure volts from r/w wire on relay to the battery gnd it shows 12 volts but nothing if measure to gnd on relay...and if you shake around the wire harness it will crank sometimes...I was wondering if this is possible to be bad wiring harness or something else...how can u tell if the ignitor is bad?

Thnks