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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26744
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Briggs & straton INTEK, XRD 20.0 HP on an ariens. started as

Customer Question

briggs & straton INTEK, XRD 20.0 HP on an ariens. started as occasional miss fire, progressed over 4 to 5 hours to firing once every 3 to 5 strokes and will not idle or run slow. replaced spark plug. no change.
Submitted: 10 months ago.
Category: Small Engine
Expert:  Curtis B. replied 10 months ago.
Have you checked the valve clearance? Valves may be too tight, causing the misfire. .003 to .005 on intake and .004 to .006 inch on exhaust.
Expert:  Curtis B. replied 10 months ago.
did you get my response?