So I've been riding my 80cc 2 stroke bike for a good 6 months now with minimal problems. But the other day on the way home from work it began to vibrate like heck. The muffler quickly loosened and fell off. Also the sound the motor is making has changed. When going 20mph is sounds as if it is going 40. It is almost like the rpm, is way too high for the speed it is going. But it is perfectly normal idling, and going up hill. Any thoughts on the problem? I am using a 6.4 oz to 1 gallon of gas fuel ratio. I also bought 91 unleaded gas, and a higher quality oil to what I was using, but to no avail. Thanks!
EDIT: Solution - Torque the heck out of every bolt on the engine.
EDIT: Solution - Torque the heck out of every bolt on the engine.
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