QuestionI have a Toro Wheelhorse that runs fine on short grass or level ground but really struggles when the grass is relatively high (not overgrown) or when going up a slight incline. Replaced the air filter, fuel, and fuel filter. It does have a fuel pump.
Thanks,
Eric
AnswerHi Eric,
If the engine is old, the piston rings may be worn. A compression test would confirm that.
Another possibility would be a lack of fuel flow. Try opening the carb's high speed mixture screw a bit.
Let me know how you make out.
Michael