Join Date: Apr 2005
Location: Guilford, CT, USA
+1 for the controller. It's located on the back of the battery box, sort of between the battery and the rear coolant reserve tank. Looking at the schematic for the 2000 LT, it looks like it has about 18 wires attached to it via two different wiring harnesses, and is connected to about a gazillion components. With regard to your situation, (and I am really just speculating here), it looks like the starter relay normally is closed (and the starter actuated) when the controller gets messages from the starter button (pin 9 of the larger wiring harness) and the Reverse Switch (pin 10 of the larger harness). The Motronic also is connected to the reverse controller, but I don't know what role it plays. Other inputs that need to be correct are from the speed sensor, side switch stand, clutch switch, gear indicator, emergency shut off relay, etc., etc., but the circuit of interest appears to be Reverse Switch (which is on the actuating shaft and is moved when you move the lever from F to R), Starter Switch, controller, and starter relay. The starter relay does not seem to be shorted because it is not on all the time. The Reverse Switch seems to be doing its job, telling the controller that the selector has been moved to the reverse position. But as soon as the controller gets that information the bike starts to move, i.e., the starter relay has closed. If this were a short in the starter switch it seems to me that the relay would close as soon as you turned the key on with the selector in the Forward position, and the starter would try to start the engine. So, we're back to the controller. To tell you the truth, I was hoping that if I walked through this while puzzling over the schematic there would be another obvious possibility; hence the verbiage above. I think you are in for a MoDiTec session and possible replacement of your controller. Good luck.
'99 Canyon Red K1200 LT - Buddah Bike