Re: Yanmar 2GMF, throttle return spring too strong
The following is from the FAQ page from Edson:
Q4: My throttle doesn't hold when I push it full forward - what can I do?
A4: Some Engine have a very tight spring on the throttle lever. Depending on the Engine Control Model, you may be able to tighten the Throttle Friction Adjuster. Older controls may not have this adjuster, but a "horseshoe" cable-clamp can easily and inexpensively be clamped around the outer jacket of the engine control cable to add the proper cable resistance
"Just call me TB"