Compu-kart
Member
We were told a similar story by a Rotax dealer. His theory is that 8 ounces of oil in the gas instead of the reccomended 2.6 ounces of oil caused a lean mixture which caused overheating which seized the piston causing the bearing to fail.I will add a third theory to oil ratio used in a 2 stroke. The more oil used in your mix of fuel/oil/air leans the motors air/fuel ratio.