Jog tranny problems

**carver** · 14th June 2010, 18:43

Hey guys...

I have had reports that the aftermarket variator and clutch kits that i have put in two jogs are starting to give trouble.
One now stalls at the lights and tops out at 45k, the other just stalls.
clutch springs breaking?

**Quasievil** · 14th June 2010, 18:50

did you do the work ??

**carver** · 14th June 2010, 19:09

Originally Posted by Quasievil

did you do the work ??

of course, all done properly with proper tools and all.
I did the first jog after the far north trip, 90 mile beach killed it a bit

**wysper** · 15th June 2010, 12:09

The jogs have too much power for the kits. Must be ripping the clutch to bits with all that torque.

**ICE180** · 15th June 2010, 20:09

could be to soft torque spring
cluth springs only hold back the rollers in the variator and the point of clutch ingagement (RPMs)

**Spearfish** · 15th June 2010, 20:55

stalling seems extreme for a tran problem usually it just bogs down and can't gain speed.
Run it up off the rear wheel, see if the engine is sweet (it will bounce around so keep a hold of it) .
If engine is ok then you will just have to pull the variator apart and the clutch. check the clutch weiner spring length against the std ones. A heavy contra spring helps power on off recovery.

I found the black ramp plate hits the alloy variator when its idling leaving a little indent where the rollers sit causing premature wear of the rollers. Chain spooge used very sparingly on the rollers, variator, ramp plate and the three sliders helps after a lightly rubbing out the marks.(seems to stay in place)

**SS90** · 17th June 2010, 03:56

I would suspect the clutch on the rear hub, I had a problem years ago with the first Aprilia RS50's in the country, where one had a incorrectly sized clutch shoe, which wore the drum en-evenly causing the scooter to stall at the lights..... I am not saying that this is your problem (as you say, broken spring is a posibility), but it does not take much to check!