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Old 02-20-2011, 05:26 PM   #26
baloneyskin daddy
bikaholic
 
Joined: Oct 2009
Location: southcentral PA.
Oddometer: 1,985
These years of Yamahas really didn't respond well to big carbs . The transfer ports which carry the fuel charge from the lower end to the combustion chamber are very small with not much room for enlargement via porting. Thus they were low revving torque monsters.
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