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FJR Motorcycle Forums
Technical & Mechanical Problems
Odd Idle and TB Sync observation
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<blockquote data-quote="ionbeam" data-source="post: 1240229" data-attributes="member: 277"><p>The G2 throttle tube that JamesK suggests is for an early Gen II that has an eccentric throttle pulley on the throttle bodies which causes a non-linear throttle response. The G2 has a profile that is the exact negative of the throttle pulley to cancel out the throttle body pulley and create a linear throttle response. The Gen I don't be this way and doesn't need a G2. But, if one were to put a G2 throttle tube on a Gen I it would slow down the rate that the engine would respond to throttle inputs for the first ~25% of the throttle travel and you would have to twist the throttle further to get the engine to speed up.</p></blockquote><p></p>
[QUOTE="ionbeam, post: 1240229, member: 277"] The G2 throttle tube that JamesK suggests is for an early Gen II that has an eccentric throttle pulley on the throttle bodies which causes a non-linear throttle response. The G2 has a profile that is the exact negative of the throttle pulley to cancel out the throttle body pulley and create a linear throttle response. The Gen I don't be this way and doesn't need a G2. But, if one were to put a G2 throttle tube on a Gen I it would slow down the rate that the engine would respond to throttle inputs for the first ~25% of the throttle travel and you would have to twist the throttle further to get the engine to speed up. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Odd Idle and TB Sync observation
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