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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26044
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I have a model sth1-20cv with rt cylinder misfiring replaced

Customer Question

i have a scag model sth1-20cv with rt cylinder misfiring replaced spark plug no help
what would you suggest next
Submitted: 7 months ago.
Category: Small Engine
Expert:  Curtis B. replied 7 months ago.
Does it have spark to the plug from the coil/module? No spark, bad coil. If it has spark, check the valves operation, by removing the valve cover. If valves are working, run compression test. Do both cylinders for comparison.
Expert:  Curtis B. replied 6 months ago.
Did you get my reply?