Howdy All,

I got an old montgomery wards SB from the Father in law. The engine on it was in pretty bad condition. He said he had to run it at half choke all the time to just to keep it running.

Anyway, I threw many hours in the shop at it. I pulled the carb and rebuilt it, did the solid state conversion to get rid of the points setup, pulled the head (cross hatches were still at the top of the cylinder) bead blasted that, all the shrouds and replaced the head gasket. I wired wheeled the entire engine block and in the process pulled the governor arm off of it without taking measurements.

When I put it all back together, the thing spins at over 3600 rpm per the hand tach. Per my service manual, it is only supposed to run at 1700 rpm

I have tried what the service manual that came with the SB told me to do, but it is still running way to fast.

Model number on the engine is 170402 1151-01 7205041.

Any suggestions?

Hmm,don't know. Personally I've never seen a Briggs that wasn't designed to run at 3600 or close to it(at least the old ones),except for the Vanguards.

Spec chart for your engine shows Idle speed to be 1750. If it won't run at idle speed then the governor may need to be set or the static adjustment may need to be performed.

Oops!! Sorry,didn't realize you were talking about LOW idle.