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Rick, Small Engine Technician
Category: Small Engine
Satisfied Customers: 3844
Experience:  Outdoor Power Equipment technical trainer since 1990, covering eight states.
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17.5hp B&S engine hard to start compression is too high for

Customer Question

17.5hp B&S engine hard to start compression is too high for the starter turn ,new starter and battery fitted
Submitted: 3 years ago.
Category: Small Engine
Expert:  Curtis B. replied 3 years ago.
Check the valve adjustment, should be .003 to .005 on intake and .005 to .007 on exhaust. If valves are ok, get the model number and we need to look at the camshaft, on some Briggs models, there is a compression release on the back side of the camshaft gear, and if the spring or weight breaks you will have no compression release! The only solution is to replace the camshaft!