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12 h.p. craftsman briggs & stration?

i take the spark plug out, put finger over hole,compression goes out carb.

howard tadlock
October 2008
Assuming the engine has SOME compression, this is normal for this model. The compression release mechanism raises the INLET valve off it's seat during the compression stroke, causing a spitback at cranking speed. At running speed, it's fine.

phil_saunders@bigfoot.com

Phil Saunders
October 2008
Valve Timing?

t
October 2008

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