rearenginekarts.com

is this a PowerProducts twin? anyone know more about this motor,please post here?

Jeff, it is a PP twin cylinder. One of the worst two cycle engines in history. My father hated seeing one of them come into his shop for help. It was very difficult to get both cylinders firing, so it was mostly a single cylinder dragging a dead one! It should have a float carb, not a diaphragm. Most of the ones we saw had a float Tilly. It also should have a sheet steel cooling fan and a rope starter pulley. It was originally a vertical shaft engine, used on mowers like the infamous Blue Boy (the mower, not the magazine...). I can't remember the displacement. It's very like the PP 1000 model. Probably about 2 horsepower, when (IF) everything was right! The single cylinder version was a pretty good low horsepower engine. TJ

Jeff, to add to Ted's comments: Tecumseh built the split crankcase models in two different sizes, horizontal and vertical crankshafts. The BH60 (horizontal) and BV60 (vertical) are 6.0 cu in and the BH69 and BV69 are 6.9 cu in. They are both cross scavanged engines.
Tecumseh prefixes indicate the following for engine ID: A-single cylinder, B-two cylinder, V-vertical crankshaft, H-horizontal crankshaft. The model designation may not always indicate the exact displacement: Model AH81 displaces 7.98 cu in.

Louie

Hi, Louie! The ones we used to see at the mower shop were several years before Tecumseh came to be. In those days, Power Products was a separate entity from Lauson. The Lausons were great little iron engines before the merger. The twin is a fun engine to look at! Do you know if the later versions had a flywheel cooling shroud directing the air onto the barrels? The early ones did not, just the stamped steel fan on top of that domed flywheel. Good to know the displacements. Dad's old PP manuals are long gone! TJ

Jeff That twin was used on lawn mowers, Monark super twin motor bike, and US goverment for generators. Had a couple monark super twin bikes, The motor does not perform well and back cylinder gets no cooling Motorbike guys in the 1980s would go nutts over those motor, were very hard to find
Hope this helps.