80-125cc air-cooled?

[sorestgore]

I've got a Caglarri 47cc pocketbike that i've brought into my Motorcycle/Marine Tech class. My instructor and I got to talking about swapping an engine from a dirt-bike into it. I've looked into CR80's and such but so far all I've found is liquid cooled models. So my question is:

What brands make/made an air-cooled engine of 80cc's to 125cc's?


Thank's in advance.


Also; if anyone has an engine like this that they'd like to get rid of, let me know. Doesn't have to be in running condition, just no over-heated units.

 

[Patman]

Something late 70's early 80's.

 

[_JOE_]

Or a 90s suzuki ds80, yamaha rt100 or pw80. These bikes use the air cooled engines from older small bore mx bikes.

 

[whenfoxforks-ruled]

The pw engines, you would have to use the shaft drive also? Look for a Honda xr engine. Any small bore mx engine made before 81 should be air cooled.

 

[helio lucas]

the pw80 dont have shaft transmission, is by chain unlike the pw 50...
either way, it´s gonna be hard to instal a bigger engine on that bike. the original motor don´t have gearbox so it will require a lot of space...

you may attach the whells to the engine mounting and seat on top of the cylinder... good thing is it will heat some body parts...

serious, look for the smaller engine you could find...

 

[sorestgore]

The actual physical size of the engine and gear-box isn't too much of a concern to me, if need be i'll stretch the frame 6-7 inches.

PW.... who makes this?

 

[_JOE_]

Yamaha.