tps not working

[Townhill]

hl foccers one and all, im having trouble with my tps i believe it to be focced the bikel seems to be running ok,
been looking online they all seem to be for the s  sp n all bar just wondering if anyone knows where i can get a replacment and if it is still ok to ride.... fzs 600 fazer 03.        noob here by the way   
regards mogs :'(

I searched out an earlier thread and found this from member Unfazed might help hope it does, Steve

Faulty Throttle position Sensors (TPS) on the early carburettor model Fazers.
Over the years I have replaced 4 in total, one on a Fazer 400 and the 2 on the Fazer 600s. The latest being my own 600 when servicing it last weekend. I replaced them with second hand ones from breakers.
The idle of my own was becoming more unstable in the last few weeks but was running ok and as it was due on Oil, Oil Filter Fuel Filter, plug change and balance the carburettors. After doing all of the above I went to set the TPS and could not set the Rev counter from 10000 back to 5000 without removing the screws of the TPS and moving it beyond the range of adjustments slots by almost 10mm. Out with the multi meter to check the TPS and found it was outside the ranges specified in the Service Manual by 1.290kohms. Since the TPS operates by varying the voltage levels being returned to the Ignitor unit (ECU) 1.290Kohm out of spec was giving completely the wrong voltage levels, which was telling the ignitor to adjust the timing to the wrong values. The first 3 faulty units I replaced were tested and were found to be open circuit with no reading between two of the three contacts and had the 3000 rev code on the rev counter, my own one however was different in that it gave a high resistance which does not show the 3000 rev fault code.
I bought a second hand one from a breaker and while waiting for it to arrive I decided to do a little internet checking to determine what other bikes might use the same TPS since it is manufactured by Mikuni and here is what I found. The Mikuni TPS with A1 stamped on the side nearest the Carburettor. The same fitment of TPS come with A1, A2 or A3 stamped on them. I have tested the one with A2 stamped on it and the readings are the same as the A1, but unfortunately I have not been able to source an A3 one to test.
Kawasaki and Suzuki also use exactly the same unit on some of their bikes.
Here is the killer punch, a brand new one with a Yamaha OEM part number is around €230 (£190) the exact same one with the Kawasaki OEM part number is around €130 (£107) and the exact same one with a Suzuki OEM part number is around €80 (£66). Prices vary a little depending on where you shop
The Fazer 600 part number is: 4SV-85885-00 and has been superseded by 4HD-85885-00
Kawasaki part number 21176-1083 and it can be A1, A2 or A3. This leads me to believe that they are newer versions of the A1
Suzuki part number 13550-13D60 and the following Suzuki models use this TPS and can be A1, A2 or A3.
 
It was because the Idle was varying between 1000r to 1400 revs that I checked the carburettor balance and the TPS settings.
The idle has improved and now stays around the 1250 mark. As I changed the plugs which had 30000 miles on them it is difficult to determine if the idle problem was due to worn plugs or faulty TPS since the carb balance was ok.