NEWBIE QUESTION

Yamaha FJR Motorcycle Forum

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To pass EPA smog requirements bike (and auto) manufacturers set up carbs (and FI systems) to pass a less than optimum amount of fuel for peak performance. Too little fuel for the amount of air is "lean", too much fuel for the amount of air is "rich".

 
To pass EPA smog requirements bike (and auto) manufacturers set up carbs (and FI systems) to pass a less than optimum amount of fuel for peak performance. Too little fuel for the amount of air is "lean", too much fuel for the amount of air is "rich".



THANK YOU :yahoo:

 
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