We get calls all the time asking us about fuel requirements. The general question is, “What octane fuel should I use in my pit bike?”
The answer to that can be clear but also confusing. We recommend running at least 91 octane but there are limitations to how high you should go on the octane rating. Most premium unleaded gas is around 91-93 octane. This is the best gas to run in your pit bike. Any lower and you can get serious carbon buildup on the valves and spark plug. This can lead to poor performance and even non starting pit bikes. Any higher octane and you run the risk of over heating and doing irreversible damage to your cylinder, pistons and valve train.
If you have been around motocross or racing all together you are probably familiar with race gas. Sometimes known as VP race gas. Though it is tempting because of the increased horsepower, we do not recommend putting this in your pit bike. Because the octane is usually around 105 – 110 this can damage your 4 stroke pit bike motor. This also goes for any fuel additives that increase the gas octane. Straight premium pump gas will make your pit bike run strong, clean and stay within the limitations of the motor.