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Gearbox wiring + other Problems?

1063 Views 4 Replies 4 Participants Last post by  inthetallgrass
So, I have a brand new JG gearbox and I put in a weaker spring. Now when I connect the battery and the motor up (The motor gear is outside the gearbox) the motor starts going straight away, without me pulling the trigger. BTW This wiring came with a mosfet fitted but it was broke so I am connecting the battery as normal and the third little wire for mosfets is left loose.

And When I tried it with the mototr in the gearbox (I actually did that first thinking it was working fine) All that happens is the motor makes a sound as if it is turning bu the piston won't cycle.

Any suggestions? Thanks.
1 - 1 of 5 Posts
There are two contact forks on the backside of your trigger switch,one of them is trying to ground off on either the GB case or your selector plate.Flip the GB on to its right side and look at the forks.They come into contact with your selector plate,and both should be making equal contact with your selector plate,if not,adjust the culprit.If this isnt the case,take a look at your trigger switch,the trigger shuttle could be preengaging your trigger switch block,a tighter spring will solve this problem.
1 - 1 of 5 Posts
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