Nitrofuel
You MUST use a fuel that meets the guidelines listed above to ensure you maintain a good running engine. Be sure to use a nitro content of between 10-20%. The higher the nitro content, the hotter the engine will run.
Usually its best to use a lower nitro % in warm weather and higher nitro % in cold. For more info about different types of fuel, please click HERE
Always check fuel lines for cracks or splits at the fittings on the tank and on the carburettors. These cracks or splits may allow air to enter the line, which will lean the fuel/air mixture. If you think you may have any problems with the fuel lines replace them immediately with a new one.