This 2-stroke engine is legal in California - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 11 (permalink) Old 02-17-2002, 11:15 AM Thread Starter
 
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This 2-stroke engine is legal in California

This 50cc 2-stroke engine is now being sold in California. Though you still need a motorcycle licence to ride it.

Some of the features include a belt driven overhead camshaft and one intake valve.

What is the make and model?
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post #2 of 11 (permalink) Old 02-17-2002, 11:52 AM
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Shit....

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It's a........


Damn, right on the tip of my tounge. Loooong weekend, I need sleep.

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post #3 of 11 (permalink) Old 02-17-2002, 12:33 PM
 
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Is this the only 2-stroke that has a camshaft and valves?Or just 1 valve for intake and none for exhaust?
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post #4 of 11 (permalink) Old 02-17-2002, 01:46 PM Thread Starter
 
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Hi Ninja,

In the head there is only one valve for the intake, no exhaust valve.

There is a second crankshaft that operates a second piston.

Andy

Last edited by Andy; 02-17-2002 at 04:23 PM.
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post #5 of 11 (permalink) Old 02-17-2002, 03:41 PM
 
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now thats just .....wierd
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post #6 of 11 (permalink) Old 02-17-2002, 04:21 PM Thread Starter
 
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The crankcase is a standard 2-stroke, but instead of pushing air/fuel mixture into the cylinder, only fresh air is pushed in.

The revolutionary new design is in the head. There is a tiny crankshaft operated by a belt that operates a small piston, it first sucks in a very rich air/fuel mixture into this small cylinder. It then gets compressed to over 65 PSI. Then a small spring valve (the intake valve) opens up as the main piston is nearing top dead center. Once the air/fuel mixture is ignited the spring valve closes.
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post #7 of 11 (permalink) Old 02-17-2002, 05:27 PM
 
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Vespa ET2!

I think anyways.

Errin
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post #8 of 11 (permalink) Old 02-17-2002, 05:36 PM Thread Starter
 
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Correct Errin...

Here is the link: http://cgi.motorcycle.com/mo/mcvespa/et2.html

Andy
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post #9 of 11 (permalink) Old 02-17-2002, 05:43 PM
 
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Allright!

So what do I win for being a Vespa rider who just moved to a sportbike, and knew the answer?

Errin
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post #10 of 11 (permalink) Old 02-18-2002, 04:24 AM Thread Starter
 
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Your prize is a brand new Vespa. The only restriction is that you have to ride it instead of your sportbike.

Andy
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