Answer
Mar 04, 2026 - 07:05 AM
After break in this engine can reach speeds of about 35-40mph. The type of engine fuel that is best to use with these engines is "E10" (Unleaded plus Ethanol, which is usually 91 octane) or you can use ULP (94 Octane). The manufacturer recommend Valvoline "two stroke racing oil" or Opti2 Ultra Gray engine oil. During break in you want to mix 20:1 ratio (6.4 ounces of oil to one gallon of fuel) and after you complete break in you can move up to 25:1. Failure to follow the correct break in process increases the risk of overheating issues and damaging the engine. It can also void the engine warranty. Here are the instructions FireStorm-PK80-Installation.pdf
