Sunday, December 9, 2007

4-Stroke vs. 2-Stroke

When it comes to rallies like the Cannon Ball (coast-to-coast) the Bajaj Chetak has one benefit . . . it is a lot less likely to seize because it has a 4-stroke engine.

Four strokes have dedicated oiling systems, putting oil under pressure where
it needs to go. Two strokes have to rely on the gas/oil mixture getting squeezed in where it's needed.

On the flip side . . . 150 cc 4-stroke kicks out the power of a 125 cc 2-stroke. A 2-stroke runs hotter, harder, and faster! That is why the motor-cross bikes are 2-stroke.

That is the only thing I'd change about my Bajaj Chetak if I could. I wish they installed a 200 cc 4-stroke engine (175 cc 2-stroke). That would have been great as I often feel underpowered on my Chetak, especially when riding double or going up hills.


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Boo Long said...

A 4-stroke engine uses about half the fuel of a two-stroke, and doesn't burn its lubricating oil, so the overall economy is much better.