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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28321
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Sometimes engine will start but,won't run and just stops.

Customer Question

sometimes engine will start but,won't run long and just stops. then it won't start. replaced coil and fuel pump what is next?
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

When it does not start or quits,do you have spark at the plugs? Remove spark plug and with it attached to spark plug wire,and grounded to the metal of the engine, see if there is spark. While plugs are out, what is the compression on each cylinder? If you have spark and compression around 80 psi, put a teaspoon of fuel into the park plug holes, re-install the saprk plugs and see if it wil start for a few seconds.

Expert:  Curtis B. replied 1 year ago.

If it does, has to be a fuel problem and the carburetor may need to be rebuilt.

Expert:  Curtis B. replied 1 year ago.

Did you find the problem?