billyreilly1020 Posted March 16, 2016 Share Posted March 16, 2016 250cc 2stroke air cooled 6speed engine number 25Y-000271 got with parts blaster not from blaster want to rebuild but need to know what it's from Yamaha written on clutch cover Link to comment Share on other sites More sharing options...
Moderator Airhead Posted March 16, 2016 Moderator Share Posted March 16, 2016 1983 IT250N ? https://www.youtube.com/watch?v=GVAv98wbyc0 Link to comment Share on other sites More sharing options...
blackhat250 Posted March 17, 2016 Share Posted March 17, 2016 that's A great ENGINE BILLY. ,, 30+ bhp,, lots of spare foer em too. Link to comment Share on other sites More sharing options...
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