Questions tagged [two-stroke]

A type of internal combustion engine where all of the cycles of combustion occur in one 360 rotation of the crankshaft.

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1answer
7k views

What is happening when a two-stroke engine is said to be “four-stroking”?

Many years ago, I was involved in a hobby of building and flying model aircraft. The aircraft used alcohol-fueled 2-stroke engines with glow plug ignitions. When these engines ran rich (and always at ...
4
votes
3answers
7k views

Two-stroke engine won't start - water in gas?

I realize this isn't a car question. There doesn't seem to be an appropriate Exchange for it, so I'm trying it here. I have a two-stroke engine (for a rototiller), and it worked more-or-less well ...
11
votes
1answer
2k views

Brake Specific Fuel Consumption of 2-stroke vs 4-stroke

How much fuel do various types of engines burn per power output? I'm especially interested in naturally aspirated piston engines, and comparing two-stroke to four-stroke. The wikipedia article gives ...
1
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1answer
3k views

50cc Two Stroke Scooter/Motorcycle - Idle and start issues

This is my first motor-vehicle ever, a Simson s50 from 1976. Things seem to be running fine, but there are two problems I need to figure out: 1) The engine dies unless rev'ed constantly - eg at a ...