Turning air fooled into liquid cooled

[Tecate250]

I picked up a 83 250r and noticed there was a spare cylinder. And always wanted a liquid r. This is my first 250r But I like my Tecate 3 better.I have noticed that there were perculating liquid cooled engines and thought why not. I heard the air cooled engines could be converted to liquid but I want something different. Anyone try this before? I am thinking of getting a water jacket built around the air cooled cylinder.:doh: Sounds pretty dumb. Any ideas guys?

[Mr. Kasey]

without a pump to circulate it won't work,,, back in the day they made a watercooled head,, for aircooled engines,,, it never really did much,, especially without a pump for water movement,,, they said it would thermal siphon with the difference in temprature,,, if it worked well i guess it would have more common,,,,

[Tecate250]

The old honda odesey's "spelling" had this kid of setup.

[jeepy77]

I seen an air cooled 250R cylinder with a water jacket built around it that someone made themselves. It was at an ATV scap yard but wasn't on a motor, it was sitting on the shelf. And yeah you would need to hook up a pump.

[250sx]

would probably be easier nowadays to find an inline pump that could handle the job than it was back then.

[jadleybray]

there's a seller on ebay with watercooled heads for the airfooler motors

[firefirefire90]

DG used to make em. I know Handa also made some for their riders.

They must have not been super effective...not too many out there. Rarer than the DG sunburst head which is already rare..

I was also told that sunburst head wasn't super effective either..

Goes to show you am i right?

[Tecate250]

It would be neat to see the look of an air cooled head on a liquid cylinder. And a rad there to boot.