my super hang on doesnt shake when you go off the road, and ideas where to start or what to test?? also the light in the spedo seems to flicker like lightning. doesnt stay on all the time. .
mine did that too...there's 3 or 4 fuses together on the floor of the game toward the back...one of them was blown...replaced it and the shaker motor worked again...
The feedback motor may be bad, or maybe someone just unplugged it because it was (and is) annoying. I've done that myself on some games like Outrun because the constant shaking can make the plastic gear inside more susceptible to breaking....
It could be a broken shaker motor. Unplug the connector and connect 5 volts directly to the motor. If it doesn't spin, then replace the motor.
The other likely culprit is the solid state relay that drives the shaker motor. Here is a page that shows a picture of the SSR board from an afterburner, as well as how to replace the SSR if it is bad.