Originally Posted by wildemere
Its a partial seizure or overheat most likely.
100;1 is not enough oil, of any type of oil. For any type of motor.
50:1 is also lean for air coled motors.
"More oil is more power untill the plug can't burn it". Gordon Jennings
If 100:1 on Opti 2 isn't enough oil, then why do Millions of people, plus (Most all large Comercial Mowing and Landscaping Companies) use the Opti 2 with excellent results. Pretty much everyone around here uses it, and I am along way from the Corporate headquarters out in Washington St.