[Lightning]

Hi i have a turfcat II with an onan engine. Here is the question Mower starts fine and runs good while under load(cutting grass). Then with no load it surges badly. But still runs smooth if you engage the blades again. Replaced fuel filter no help. Thinkin dirty carb? Any ideas out there?

Thanks in advance! This is my first post.

 

[Austen]

Welcome!

A dirty carb would be my inclination too, it certainly has the right symptoms for it. I would pull it apart, clean it and go from there.

 

[Lightning]

Cleaned carb, checked intake seal and still does it. Thought there may have been a air leak at the intake. I was assuming it was a fuel/carb problem. Could it be something else? Like electrical?