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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26053
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I have a comand pro 27 hp ch740 the inginition went bad from

Customer Question

Hi I have a comand pro 27 hp ch740 the inginition went bad from corosion and they replaced it since I picked it up it lost 25% power then it would miss and pop, and once and a while it would run like no tomorrow, could it be a ground issue coming from switch as he said he had to replace some rusty clips in the harness thanks
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

What was changed? The ignition coils are what usually goes out.

Expert:  Curtis B. replied 1 year ago.

One coil will fail and engine only runs in one cylinder.

Expert:  Curtis B. replied 1 year ago.

After engine cools, coil works again. Kohler says always to replace both coils!

Expert:  Curtis B. replied 1 year ago.

Did you check the cylinders for firing by removing one plug wire at a time,to determine if one cylinder is problem?