No, they are not the same. The (3rd bore) oversize YT has the same size bore as the (standard bore) 200 but the rings list a different part # for both aftermarket (weisco) and Yamaha. What is the part # on the set you recieved? Is there a oil ring in the set or just 2 compression rings?
Last edited by thefox; 12-03-2006 at 09:28 PM.
Reason: add bore size
1984 Yamaha YT 60 Tri Zinger(current project)
1983 Yamaha YTM 200 (rear suspension kit)..... long term project
2004 BMW R1150R
1972 Honda CT 70
2007 Lifan 110