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I turned the motor manually until it got to the tight spot and removed the head to check the position of the piston. It was just past TDC. Good to know that about the decompression on the cam. Didn't know about that. I have another one I'm going to replace it with. Only thing that makes sense...

No decompression mechanism but agree it that's what it acts like. Cam maybe?

Really can't figure why it gets so hard to roll over only on the downward stroke of the power cycle. Would think it would be on the compression stroke.

Not sure how to measure that. Only sanded till surfaces were evenly shiny. Hard to imagine that I could've taken that much off with sandpaper and block but.....?

Geez. That was a lot of pull

S/B 195412. I/C series

Looks to have all original parts. Cylinder checked out well within spec. Seems to have been lightly used and cast iron sleeve

Yep. Horizontal. All been checked and rechecked. Starts right off and runs and accelerates smoothly. Just has that really tight spot I can't figure out. Pulled the rope till it got hard to pull and pulled the head off to see where it was sticking. Rolls over smooth with no compression

BS 8hp 195414 1137 01

Just put an older 8hp Briggs together. Mainly just needed cleaned up, honed and a set of rings and lapped and set clearance on the valves. Valve seats appear good. Starts and runs great but has a real hard place in the cycle just as the piston passes TDC on the downward stroke (power stroke). It...

Just put an older 8hp Briggs together. Mainly just needed cleaned up, honed and a set of rings and lapped and set clearance on the valves. Valve seats appear good. Starts and runs great but has a real hard place in the cycle just as the piston passes TDC on the downward stroke (power stroke). It...