1. Missed the live Ask the Expert event?
    Catch up on the conversation about enhanced efficiency fertilizers with the experts at Koch Turf & Ornamental in the Fertilizer Application forum .

    Dismiss Notice

FH500v kawasaki motor surging

Discussion in 'Mechanic and Repair' started by LESCO...MECH, Oct 18, 2006.


    LESCO...MECH LawnSite Member
    Messages: 30

    I have a walkbehind mower with a FH500V kaw on it and the motor surges up and down when its at full thottle, but engage the blades and it does not do it. And does not do it at low idle (as much) any help would be apprecated:confused: :confused: ;)
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,028

    Sounds like it may be trash or water in the carb. (Main jet) causing it to lean out or the high speed RPM could be set too high, Or the governor could need a adjustment.
  3. Jim@MilkyWay

    Jim@MilkyWay LawnSite Senior Member
    Messages: 472

    Be sure and pursue this to resolve quickly, as surging will wear out your carb in short order and I don't think it can be rebuilt if the throttle shaft and associated bushings are worn too badly.

Share This Page