Hey guys, my 2007 SMR is starting and running perfectly but all the electrics are playing up- my speedo jumps all over the place- says im doing 270kph. lights flicker on and off with the speed of the engine idle and hitting the breaks shorts out the whole system- kills the lights and speedo. All was fine and this problems just developed without me changing anything. Ive read about faulty ECU and Voltage rectifyer,etc but those will affect the bikes spark and therefore performance but mine runs perfect. Checked all connections for loose wires. Would really appreciate any suggestions?
If it seems to happen most when you use the brakes, I'd start by checking the brake switch wires to make sure nothing has rubbed through. You probably have a wire contacting metal somewhere. Start at the brakes and follow the wires back and particularly check contact points where they are near sharp edges. Then scour the rest of the harness. It could be something bigger, but I'd at least start there and look for the easy/cheap fixes.