Recommended fuel octane for 2005 yamaha 1100

Using the recommended 91 octane gasoline is your best choice. Using lower octane can cause fouling, miss-fire and detonation(pinging). While not too detrimental in the short term, this can cause premature engine wear over time. If you really need to save money at the pump, Try mixing regular or mid grade with premium in various ratios until you find a blend that runs well. Or Don\'t buy a car that requires premium.

Other sources? I have not heard of premium gas causing damage

midgrade is fine 89 octane fuel recommended,no ethanol please. ok to burn 93 octane,better fuel mileage though. you will find that 89 octane fuel will do the job of performance,but 93 octane will go the further distance,as far as mileage is concerned. hope this helps, and thank you for choosing fixya.com

This is a wide range of fuel types. Minimum Octane level to run decent is normally 87. Up in the northern areas and hilly states I've seen this a little lower. Typically your choices are 87 octane, 89 octane and 93 octane. I recommend using the 89 octane or mid grade to get the best mileage and consistent performance from the vehicle. You will get better mileage from the higher 93 octane or Premium but this is off set by the increased soot and build up over time and the mileage isn't that much better to justify the cost between the Mid and Premium grade fuels.

Premium gas.

It can yes.

Higher octane fuels are used because they are more stable than lower octane fuel.

Low octane fuel is more likely to pre-detenate at high engine temps

Your cx7 has a high compression engine, meaning it compresses the air probably 10.5 to 11.5 times. This generates a lot of heat. Using a lower octane fuel will likely ignite before the engine has completed it up word compression stroke.

I would not advise using a low octane fuel. You can however use the mid octane fuel and you should be fine. Test it out. If it is hotter then 85 degree out constantly i would suggest not using the mid octane fuel

3.8 liter V6
Recommended fuel, 87 octane

3.8 Supercharged V6
Recommended fuel, 92 octane or higher

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HI. i recommend using the premium in this vehicle. This will ensure optimal performance. The fuel system will accept the regular blend as well but, this is not what this vehicle was engineered for. the regular blends octane level is not sufficient for optimal acceleration and overall performance.

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Gas running out of the carb indicates that the internal float valve is not shutting off the flow when the float bowl fills up. Might need cleaned; might need a new float valve assembly. Not cranking is an electrical problem. If you mean that the engine cranks over but doesn't start - then this could be a related carb problem. Take the bike to a reputable repair center near you.