Need a new top end for my MM700 its the sencond time this motor has blown. The crank is trued. The first engine blew the piston skirt off and blew the oiler out the bottom. This time cylinder 2 & 3 the rings went only after 50 miles on the break-in. Please let me know if you know someone that has a complete top end for sale. PM me I live in Boise.
