Kohler surging

NDavis

LawnSite Member
Location
Thurmont, Md
I recently picked up a ransomes bobcat xm3653, it was definitely in rough shape but overall in usable condition and cost me next to nothing. I believe they came standard with a kawi fb460v, but this unit is sporting a kohler command pro 15hp. I noticed after reqching temp it starts to surge, regardless of where you put the throttle and backfires when throttling down. I emptied the tank and changed fuel filter as well as the plug. Still more of the same, I notice now that the little arm coming off of the throttle is moving back and forth on its own with the surge, any ideas?
 

JoeRagMan

LawnSite Senior Member
Location
Near TMI
Start by finding the governor adjustment on the manufacturer's web site and check that. Also, make sure the fuel is fresh. Check the intake system it not leaking between the carburetor and the engine block. It's a process of elimination. Good luck.
 
OP
N

NDavis

LawnSite Member
Location
Thurmont, Md
I've gone through all the obvious stuff that comes to mind, keep noticing that governor arm moving with the surge, but i'm not sure if thats a symptom or possible cause.
 

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