I have An old Schwinn Mesarunner 26years old but looks brand new. Bought it for $50.00 had it looked over at a local bike shop, they said I got a fantasic deal.
Last week I bought a 4 stroke kit from Pirate Cycles, it should arrive sometime this comming week. I'll let you know how it is after it s on the bike and running.
I'll be back later.