It's a 13hp 4stroke motor, nice for pressure washers. Even better for go-karts!
6.5 HP
According to Triumph, it is 54 bhp (brake horsepower) @ 6,750 rpm. According to Encyclopedia Britannica, horsepower at the output shaft of an engine, turbine, or motor is termed brake horsepower or shaft horsepower.
Most likely 3/4" diameter, though it's possible it's 5/8". Although, I have never even once heard of a 3.5 hp mower with a horizontal shaft.
The rule of thumb is 746 watts per horsepower. You have 56,000 watts of rating so: 56,000 divided by 746 watts or roughly 75 horsepower. You have one very large motor there!
On most of those engines it is 1in" But it could also be 7/8"
Honda makes more than one type 160cc engine. The GC160 horizontal shaft outputs 5 h.p. The vertical shaft engine outputs 4.8 h.p.
The point at which the horsepower measurement is taken. A 100hp outboard engine may only deliver 87 horsepower to the propeller due to losses in the transmission and bearings. The engine horsepower is 100, but the shaft horsepower rating is 87 horsepower.
Blade adapter from a MTD or Yard Machine seemed to fit the keyed shaft. Center bolt is 3/8" with 24 threads per inch. My issue is the shaft on the Predator is 1/2" longer than my original Yard machine, Briggs and Straton. So I either need to cut the shaft off, or raise the motor on a half inch thick spacer plate to get the blade at the same height it was on the original motor.
Of all.
Adit
Adit
Drive shaft is vertical- like a lawnmower. Cylinder is horizontal.