I have a 1985 Motomarina Sebring with a Morini engine. I purchased the 60cc Polini speed kit from Moped Warehouse and a mechanic installed it. I have not been able to start the bike at all since the kit was installed. I checked all wiring and got a new sparkplug, the exhaust was cleaned, the carb (dellorto) was cleaned, and the bike has all new fluids. The fuel jet is a Dellorto #52 and it is clean. The bike is burning the gas oil mix because you can see smoke and smell it coming out of the pipe, but the engine will still not start. Also you can pedal the bike as fast as possible and it goes like 2 mph.