I spotted a forlorn TY250 out in the rain and just had to rescue it. Cost me a hundred bucks. It is part yellow 1974 and part blue 1977. Frame is 434-000xxx and engine is 493-20xxxx. It's 99% all there and would probably start and drive but I optioned to give it a quickie restoration first. Then do it up right if it bike runs and drives fine.
The Good: Motor is free and has spark & compression, wheels are round, steel tank solid, seat/fenders/side/skidplate cover present, lighting kit present and presentable.
The Bad: White death in the carb (needs rebuild kit), broken upper throttle cable (how does one replace just the upper?), marginal front brake cable, clutch cover busted under oil pump, big dent in headpipe.
The Ugly: Does not seem to be many parts available for this model.
I've never ridden a trials bike unless you count my Bultaco Matador way back in 1970 but his might be the perfect bike to get the wife interested in dirt biking? I told her "I bought it as a present for YOU, honey"
Kodiak Bill