SMR 450 2007 Electrical issues, please help!!!

Discussion in 'General (Main)' started by craigw200, Mar 25, 2014.

  1. craigw200 Husqvarna
    B Class

    Husqvarna Motorcycle:
    SMR450
    Other Motorcycles:
    CRF250
    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?
  2. Phoenix Husqvarna
    AA Class

    Location:
    Oklahoma City, OK
    Husqvarna Motorcycle:
    2009 TXC 450
    Other Motorcycles:
    2 Ducs, 14 GG 200, 13 Husa 300
    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.