There should not be any problem as long as the single cylinder engine has the same horsepower for handling the load, and the mounting bolt holes match up.
Try kerocene in the cylinder head ..
Yes, most all of the Briggs single cylinder engines are exchangable. You just need to be concerned to make sure that you don't under power your mower. In your case that is not a problem.
Single-acting? You mean like a single cylinder engine, like in my lawn mower? The biggest difference (besides the obvious "an opposed engine has more cylinders" is that an opposed engine has more torque. On a single-cylinder four-stroke, you've got the cylinder moving under input energy--the burning gasoline--for one stroke, and under stored energy from the flywheel for three strokes. If you have a two-cylinder engine, you have two strokes where the engine is moving under input energy--each cylinder has one--and two strokes using stored energy. If you have a four-cylinder engine, each stroke is moving under input energy.
Four
The answer will depend on what engine is in the mower. If it is a single cylinder more than likely it will be in the front of the engine. If it is a twin cylinder the plugs wille on the sides of the engine. Either way look for a thick black wire going to it about the thickness of a pencil. It will be what that wire goes to on the lower end of the wire.
Any maker that produces lawn mower engines.
The Smart Aleck answer is, "You put it there." When you pour oil in via the fill hole, you're pouring it directly into the crankcase of the engine. I believe most simple, single cylinder, 4-cycle lawn mower engines are "splash systems". In which case, it's up to mechanical agitation to splash the oil around while the engine is running, ensuring that the valve components and cylinder walls are lubricated.
blew engine cause of low oil.... junk the mower engine & replace or pitch the whole mower... your choice
Replace the engine...End of story.
Because the number of gears in the transmission has NOTHING to do with the number of cylinders in the engine, there is no way to answer this completely. However, since a one cylinder motor is only possible with a 2 stroke and a HUGE centrifuge, there would be no way to have multiple gears in a one cylinder engine. It would have to be a generator of some sort with a single ratio clutch system, like one could find in a lawn mower type engine.
It just unscrews from the motor
Turn off fuel, remove spark plug/s crank motor a few times, clean plug/s and replace. That should clean out the cylinder/s. Should start.