Adjusting TPS (Throttle Position Sensors)

This is a lot easier to do on bikes with no airbox, such as mine. The pictures are taken without the airbox.

There's the front TPS:


and the rear TPS:

They are the things with numbers printed in grey on them.

They're both on the RHS of the throttle bodies, sitting on one throttle body each.

The connectors are between the throttle bodies also on the RHS, each leading to a TPS.

The black connector is for the front TPS, and the white one is for the rear.

On the front connector (black), stick a pin or something similar next to the white or yellow cable (depending on which connecting piece you connect to, male or female) down hard to get contact. On the rear (white) you do the same, but stick the needle into the green/red or the yellow cable.

You might have to try a few times before you get a reading. Use a voltmeter to check the voltage. Put the ground on some none painted metallic part of the engine, and the positive end on one of the needles.
The ignition should be on.

The front should be set to 0.6 V, 0.56 - 0.64 is okay.
The rear should be set to 1.0 V.
If they're out, you loosen the little torx screw (T25) a little and turn the TPS slightly, adjust to correct values.
According to the book, the front should be set while the engine is running at normal temperature on idle. The rear should be set with the engine off, but ignition on.

Good luck mate!
If there's any info you need that you reckon I might be able to help you with - just give us a yell.

I have had mine out 3 times now,

it is real easy and I can have a 1 hour turn around from start to finish,

if you need help ask but no TB disassembly necessary or recommended.

leave the throttle cables hooked up and suspend the TB's with a wire, easy to remove now for me.

Hi Nickeluring,

I was wondering if you could stick up the photos again as they seem to have been removed or maybe its my computer. You have started a very interesting and helpful post.

Sonic.

SD '06: my TPS setting voltages .6 for the front tps at engine running and at normal riding temp of 84 degrees and rear at 1.02 engine off, ignition on. have loaded Klincks map with pcIII import with motobox, akra slip on;

Previously, with different maps tried, even the recent one, i have experienced an erratic high idle of 2k-2.5k and at times on re-start, rpms would drop way down low to 1k and sometimes stall on take-off. racked my brains for the past 2 weeks, not to mention the difficulty riding on mountain passes where rpms would rise even when the throttle is released so i would normally pull the clutch in and apply the brakes to avoid overshooting the curve...oh my.

Now things are looking good and turning up daisies again. can't wait to get on the saddle for the mountains. 2 days cruising around with short blasts showed the new settings to be stable and fun to ride...

cheers and thanks for all the help and patience guys...to tom and alain for such a wonderfull tool to work with!
larry

Tune ecu can also help you out on right voltage for correct tps adjustment.
Col.Klinck got a nice topic on that one in technical
cheers.