Question about Yamaha XJ 900 S Diversion Motorcycles

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Bike stutters when started

I have a Yamaha xj900s diversion,the needle of the rev counter jumps to10000 rpm`s when engine is turned on and then suddenly drops to 0 rpm`s, +- 3-5 seconds later the whole process repeats itself. The bike starts easy and idles good but as soon as you start to turn the throttle to 5000 rpm`s the engine starts to stutter and dies. If throttle is turned quickly the bike also starts to stutter, can this be the throttle positioning sensor that causes this, if so how can it be tested?

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  • Anonymous Mar 29, 2014

    the bike hates damp rainy days it will run rough go in and out as you throttle wont idle and cut out plus when it does idle the tickover needle will jump every couple of seconds

  • Anonymous Mar 30, 2014

    Can't throttle bike up

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The 900S diversion has a self diagnosis device. When the tacho cycles as yours is doing the Throttle Position Sensor requires attention. If it cycles to 9000 rpm and 0 there is an ignition fault that needs looking at.

Posted on Aug 09, 2012

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Check your fuel filter for or fuel lines for kinks,you may also check the grade of fuel

Posted on Jan 26, 2009

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Posted on Jan 02, 2017

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3 Answers

Engine stutters when turned on


Try it with the fuel tank on reserve

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