have two honda big reds one a 1985 200es has partially lost drive to one wheel start up engage gear rev left hand wheel spins the other stays still but with girlfriend on give it a push and it will accelerate away uphill .It is the hi/low/reverse model

 

Wow!
That is a strange one
I looked in my manual this is a shaft drive with a ring and pinion
But it still apears to be a live axle
If you jack the rear of the trike up and spin the axle is there any grinding
Or can you jack rear up and turn both rear wheels different directions
If so this would indicate striped splines
But from what I can see in the manual the only place this could happem is at the wheel
Good luck
Ray

 

will try this out i cant work it out but when the left wheel is turning and the other not the shaft isnt turning on the right i suppose you would say axle its wierd think I may end up having to strip axle many thanks for and help