Honda Spree and Elite 50 Forums

Looking for any tips on keeping an air cooled stroker cool. Any tips or tricks would be very helpful. Thanks all.

You could get one of those water-cooled cylinder heads I have seen around and have it ground to match up with your bore, and then you need a radiator and some coolant hose, etc. so there's a suggestion for you. I would do some research and talk to some people who have personal experience with those heads to help make a decision whether or not to invest in that. I don't have any experience myself but I have wondered if they would help a lot or just a little. Then you could let us know!

Fat jetting or cobbling together a shroud to fit around the jug would help with the temps. Maybe a fan scoop also. I built a 50x50 and didnt have any cooling issues once I finally dialed in the tune. I know the fatty air-cooled strokers 120-130cc suffer from heat issues and can only run wot for short periods. The water-cooled stuff can run all day at full scream with no worries of meltdown…properly tuned of course.

My buddy built a water-cooled setup using a heater core from an old Datsun in his back yard. Bought a cheap 12v water pump on ebay and plumbed it with garden hose. Total backwoods redneck build but it worked and that scooter was an absolute ripper.

Meatball wrote: ↑Wed Apr 03, 2024 1:25 am Fat jetting or cobbling together a shroud to fit around the jug would help with the temps. Maybe a fan scoop also. I built a 50x50 and didnt have any cooling issues once I finally dialed in the tune. I know the fatty air-cooled strokers 120-130cc suffer from heat issues and can only run wot for short periods. The water-cooled stuff can run all day at full scream with no worries of meltdown…properly tuned of course.

My buddy built a water-cooled setup using a heater core from an old Datsun in his back yard. Bought a cheap 12v water pump on ebay and plumbed it with garden hose. Total backwoods redneck build but it worked and that scooter was an absolute ripper.

Love this!!

Can attest to the 120cc stroker heat issues.. Built one for 1/8mi off road drag racing. Did great, but never finished tuning it for street. WOT jumping onto highway for a few mi. killed it