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Old 09-14-2010, 10:26 AM   #29 (permalink)
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Join Date: Jun 2010
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yes, Harley was bad example as it is made to vibrate and sound the way it is but it still will always be as you go up in cylinders the engine smooths out 1, 2, 4 ,6 ,8, 12 they generally get smoother . Most motorcycles that run smooth are 4 cylinders (Honda, Yamaha ,Suzuki )
Also the size of each cylinder has a affect , thats why large 4 cylinder have counter-balance shafts .
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