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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26016
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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My kohler m125 engine wants to quit running at full throttle

Customer Question

My kohler m125 engine wants to quit running at full throttle unless I pull the choke out about 3/4 inch. The engine is in a 1987 wheel horse. Any idea why this is happening? Thanks
Submitted: 7 months ago.
Category: Small Engine
Expert:  Curtis B. replied 7 months ago.
Check fuel flow to the carburetor. Do you get 1/4 cup in 15 seconds? Have you tried a test line from the fuel pump inlet, into another fuel container, bypassing the tank and hose from tank?
Expert:  Curtis B. replied 7 months ago.
http://www.kohlerengines.com/onlinecatalog/pdf/tp_2203_a.pdf
Expert:  Curtis B. replied 7 months ago.
See manual above. This is the Magnum engine, 12 hp.???