February 12, 20206 yr It´s been a while since i was here! I just finished my rebuild of my new Honda Aircooled Mono TLM 250R (1988). A quite rare Bike and it seems to be underrated in my opinion. I was looking for an air-cooled mono and wanted to have a disk brake at least on the front. And i was in the mood for a japanese bike again. A few days before christmas i bought this bike in really bad condition. Parts are not easy to find, but when you get a little creative a lot is possible. I managed to find a wössner piston of a 250 Rotax that was available in 74,50 and 75,00 sizes. The main difference was the 18mm Piston Pin and a different shape to the dome. Also there were no holes on the backside of the piston. So there was some work required. Now the bike is almost finished, and i am very happy with the result. The bike feels very light while riding and has good power and a good throttle response. I was thinking of taking off some flywheel weight when i first saw this heavy piece, but i think i will keep it that way. cheers Bernie So here´s the bike:
February 19, 20206 yr Interesting information on the piston. It does however seem a lot of work. Does anyone else have suggestions to other pistons that may be fitted.
September 14, 20223 yr Brilliant job well done !!! I need help to im looking for a back wheel for a TLM 220 86 cash waiting
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