Home › Forum › Ask A Member › How hot should a HD25 run? › Re: How hot should a HD25 run?

#60975
gjonz
Participant

    There is a service bulletin showing some of those motors have too large of a passageway from the float chamber to the intake. They require a pin be cut and inseted in the passage toe reduce surface area which eliminates vaporization of the fuel by heat from the exhaust.

    These motors have a flat head screw/clean oh at the front bottom of the float chamber.

    Greg