Basically you just want to test firstly that it's okay, and also if it's in the correct position.
Turn ignition key on (no need to start the engine)
Unplug the TPS, which is the black thing on the right side of your carbs. I normally use a key to help with the catch.
The rev counter will then display a code to say that it's either unplugged or not working. It will go from 0rpm to 3000rpm (3000rpm is a faulty code)
Then simply plug it back in and see what code it gives next.
5000rpm is good, and where you want it to be.
0rpm or 10,000rpm means it needs adjusting, which involves undoing the 2 screws with a T25 tamper proof torx driver, and literally twisting the TPS sideways until you see the needle land in the 5000rpm position.
4000rpm means a dodgy speed sensor, but i doubt very much this will apply to you.
And if it goes to 3000rpm then your TPS is likely to be knackered.
As i said earlier my bike definitely misbehaved before i changed my TPS so it's worth a quick check.
Also the erratic tickover and fluctuating RPM needle could be symptoms of a dodgy TPS.
If you need to adjust the TPS then the bike must be at operating temperature, and the tickover speed should be around the 1200-1300rpm mark.
And don't forget, if it hits 10,000rpm turn the engine on until you are ready to adjust it to put the needle back towards the left side, otherwise it's front fairing shield off, then remove clocks and take it all apart to move the needle back. It's not difficult or anything, it's just time consuming and avoidable.
WORTH A QUICK READ: http://wiki.seloc.org/a/Throttle_Position_Sensor
Turn ignition key on (no need to start the engine)
Unplug the TPS, which is the black thing on the right side of your carbs. I normally use a key to help with the catch.
The rev counter will then display a code to say that it's either unplugged or not working. It will go from 0rpm to 3000rpm (3000rpm is a faulty code)
Then simply plug it back in and see what code it gives next.
5000rpm is good, and where you want it to be.
0rpm or 10,000rpm means it needs adjusting, which involves undoing the 2 screws with a T25 tamper proof torx driver, and literally twisting the TPS sideways until you see the needle land in the 5000rpm position.
4000rpm means a dodgy speed sensor, but i doubt very much this will apply to you.
And if it goes to 3000rpm then your TPS is likely to be knackered.
As i said earlier my bike definitely misbehaved before i changed my TPS so it's worth a quick check.
Also the erratic tickover and fluctuating RPM needle could be symptoms of a dodgy TPS.
If you need to adjust the TPS then the bike must be at operating temperature, and the tickover speed should be around the 1200-1300rpm mark.
And don't forget, if it hits 10,000rpm turn the engine on until you are ready to adjust it to put the needle back towards the left side, otherwise it's front fairing shield off, then remove clocks and take it all apart to move the needle back. It's not difficult or anything, it's just time consuming and avoidable.
WORTH A QUICK READ: http://wiki.seloc.org/a/Throttle_Position_Sensor
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