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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28119
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Have a honda 670 propane fueled part of a generator. Have

Customer Question

Have a honda 670 propane fueled part of a coleman generator. Have replaced coils / engine stop diode set/ replaced intake gaskets/ cleaned flywheel/ new oil pressure sensor and new controller. Engine starts then in a few seconds backfires, spits then dies. Wait a couple of minutes then engine won't start acts like its flooded and i can smell propane like a regular gas engine when it's flooded. HELP
JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?
Customer: Yes fresh tank and checked all supply lines.
JA: Do you plan on doing the work yourself?
Customer: Already done all components installed and even rewired the whole set and painted its looks nice .
JA: Anything else we should know to help you best?
Customer: The unit had set without running for a considerable amount of time picked it up for free customer just wanted it gone.
Submitted: 8 months ago.
Category: Small Engine
Expert:  Curtis B. replied 8 months ago.

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

Expert:  Curtis B. replied 8 months ago.

Likely you need a new LP fuel pressure regulator. It has to control the fuel to the engine carburetor. At this time, it sees to not be doing that. Best to replace, than try to clean or repair.