Tachometer jumps to 5K, couldn't find any info on error

[keratos]

I don't think the manual is going to help. The wiring colour codes are different.
See my post above.
Arieljt... Please read the posts before replying !

[arieljt]

I didn't see you edited it, sorry for that.
I followed your guide and the manual now and its seems that the TPS unit is faulty, the resistance is 20-26 M ohm and it's the same between the black-blue and the black-yellow. I tested numerous times and even tested my fluke multimeter with simple resistors just to make sure its not the fluke fault.
Could it be that it's the TPS? because if I leave it disconnected and start ignition the tachometer still does the same thing as in the video i posted.

Now i'm wondering if I should buy a new TPS unit? (where in Germany?) or I should go to a bike service garage? (and possible have them overcharge and lie to me)

[darrsi]

I didn't see you edited it, sorry for that.
I followed your guide and the manual now and its seems that the TPS unit is faulty, the resistance is 20-26 M ohm and it's the same between the black-blue and the black-yellow. I tested numerous times and even tested my fluke multimeter with simple resistors just to make sure its not the fluke fault.
Could it be that it's the TPS? because if I leave it disconnected and start ignition the tachometer still does the same thing as in the video i posted.

Now i'm wondering if I should buy a new TPS unit? (where in Germany?) or I should go to a bike service garage? (and possible have them overcharge and lie to me)

Where does the needle go when you unplug the TPS with the ignition switched on (not with engine running)?

[unfazed]

Is this correct?

With everything plugged in and you turn on the ignition switch the rev counter goes to 5000 and then slowly returns to 0?
With the TPS disconnected it does the same thing?

With everything connected, Start the engine and leave it running for 5 minutes. What happens with the rev counter?

Post the result/s as it could be an issue with the clocks?????


Just to satisfy me and to absolutely sure you are performing the test correctly.

1. Disconnect the TPS
2. Attach the meter leads to the 2 outer pins of the TPS unit on the Carburettor? What is the reading?
3. Now Attach the meter to the lower and centre pins of the TPS. What is the reading?
4. Now with the meter still attached to the lower pin and middle pin, twist the throttle slowly to fully throttle. What is the result on the meter as you twist the throttle and when it is at full throttle?

[keratos]

ditto unfazed - indeed, thats what I said isnt it?

anyway, if he's reading 20 MEGA (note the M guys in his post above) - 20Mohms - then this is way way way out; the system will behave as if there is no TPS which will give the results he is observing on the tacho.  not sure it is a clocks issue? the behaviour is as expected according to the measurements he has provided.

Replace TPS - £20-30

[unfazed]

Yes, but you did not put a simply as I did :lol

I am just using simply logic, since we cannot see what Arieljt is doing it is important to double check what he tested to be sure rather than assuming, jumping to conclusions and misdiagnosis. I am surprised to think that you would not to do this :pokefun

Out of curiosity, how did you conclude from a photograph that the wiring colour codes were different?
The smaller plug has the wire to power via fuse, earth, ignition coils and the speedo reference. The larger obscured plug in the photograph has the wires to the TPS, Rev counter, pick up coil, starter cut out relay and alarm system.

[arieljt]

Where does the needle go when you unplug the TPS with the ignition switched on (not with engine running)?

It doesn't change a thing if the TPS is connected or not, still moves from 0-5K.

With everything plugged in and you turn on the ignition switch the rev counter goes to 5000 and then slowly returns to 0? Yes
With the TPS disconnected it does the same thing? Yes

With everything connected, Start the engine and leave it running for 5 minutes. What happens with the rev counter? Only 0-5K as always

Post the result/s as it could be an issue with the clocks????? I don't know, but I'm pretty sure the TPS is faulty


Just to satisfy me and to absolutely sure you are performing the test correctly.

1. Disconnect the TPS - Check
2. Attach the meter leads to the 2 outer pins of the TPS unit on the Carburettor? What is the reading? Around 20Mohm - 26Mohm
3. Now Attach the meter to the lower and centre pins of the TPS. What is the reading? 23Mohm
4. Now with the meter still attached to the lower pin and middle pin, twist the throttle slowly to fully throttle. What is the result on the meter as you twist the throttle and when it is at full throttle?  It reacts to the throttle twist and it moves from ~23Mohm to 1.5 Kohm

I just got back from a Yamaha garage, told them about the 0-5K and they say they are not sure what it is. They set me an appointment for the 14th of August for 25Minutes (lol so precise Germans) of testing of the electrical system and the TPS. They are pretty damn expensive so I would like to buy the TPS myself - Original and give it to them to install, Can someone please link me to a original yamaha TPS for my fazer 600 99'? looked over ebay with no success.. 

I also called they guy that sold me the bike to tell him about my adventure and he was very unpleasant and told me that it's 100% my problem.

Once again, you guys rock, thank you all so much for helping out.

[darrsi]

If the TPS is unplugged it will show 3000rpm, which would suggest the TPS is not the problem.

[keratos]

Replace TPS . there are many sources, bit sure about Germany but most eruo parts suppliers ship to DE.

[keratos]

If the TPS is unplugged it will show 3000rpm, which would suggest the TPS is not the problem.

Not if the system is in setup mode.. Or the fault characterises a setup mode loop circuit. Of his readings.. I say replace TPS. end. Can't add any more. Not interested in a flameout so,  arieljt.... REPLACE TPS .end of. Not entering into argumentitve dispute so good luck

[unfazed]

I have seen clocks do amazing thing and it  is always wise to keep an open mind when fault finding.

Yes it looks like the TPS as 20 Megohms is definitely wrong. should go from about 5k to about 1.5k

The Yamaha boxed TPS is over €250 and the OEM part number is 4SV-85885-00, but it was superseded by part number 4HD-85885-00  whereas the Suzuki boxed one part number 13550-13D60 is exactly the same and costs about €90.

Check ebay for a secondhand one as they are the same as the ones fitted to the early carburettor R1s.

Fazer spares in Bristol Uk have a used TPS http://www.fazerspares.com/items/131-1_3...---tps.htm. I have bought many items from them over the years and found them to be good to deal with and will probably post to your area

Let me know as I always have a spare one just would have to go looking for it.

[darrsi]

I have seen clocks do amazing thing and it  is always wise to keep an open mind when fault finding.

Yes it looks like the TPS as 20 Megohms is definitely wrong. should go from about 5k to about 1.5k

The Yamaha boxed TPS is over €250 and the OEM part number is 4SV-85885-00, but it was superseded by part number 4HD-85885-00  whereas the Suzuki boxed one part number 13550-13D60 is exactly the same and costs about €90.

Check ebay for a secondhand one as they are the same as the ones fitted to the early carburettor R1s.

Fazer spares in Bristol Uk have a used TPS http://www.fazerspares.com/items/131-1_3...---tps.htm. I have bought many items from them over the years and found them to be good to deal with and will probably post to your area

Let me know as I always have a spare one just would have to go looking for it.

Always handy to have a spare TPS in yer pocket, you just never know when they're gonna break down....... :lol

[unfazed]

and a spare set of clocks, regulator, alternator, carburettors, coils, spark plug caps clutch lever, brake lever and Ignitor  :lol

[MC680x0]

to the OP: just fixed my mates Fizzy which had the same prob. a new TPS sorted it. where are you upto with this?

[arieljt]

to the OP: just fixed my mates Fizzy which had the same prob. a new TPS sorted it. where are you upto with this?

Sorry for the late response.
This is very interesting! Did he have the 5K-0 problem exactly like I did?  :eek
What happened since my last post:
I went to a Yamaha shop and they brought another fazer, took his ICU and connected it to my fazer. Nothing changed! They had no idea what is it but they insisted that it has nothing to do with the TPS and they showed me what happens when they disconnected the TPS from the other guy's fazer (not the same problem like I have).

I'm still stuck with the bad tacho and i'm still searching for one, having a bit tight budget at the moment i'll get back to it later.

[MC680x0]

Sorry for the delay
My pals tach was all over the place. Can't remember the exact patterns of reading but 5k and 3k came into it and his TPS was way out of spec. As the TPS works by varying VOLTAGE to the ICU then the tacho can do strange things with a TPS that is offering up increased resistance and thus varying volts
Looks like you have been advised several times above to replace the TPS , I'm surprised you haven't done this and still wondering what the problem is. If it is the clocks then you won't know until you have fitted a new TPS as if TPS doesnt work (unlikely but theoretically possible as per unfazed comment) then the clocks are far more expensive and you could easily sell on a new unused TPS
Get on with it mate !

[arieljt]

I wanted to do it but there's one thing that's holding me back - how am I going to tune the TPS correctly if my tacho is (indeed) messed up?
Then i'll be stuck with two problems  :wall

[darrsi]

I wanted to do it but there's one thing that's holding me back - how am I going to tune the TPS correctly if my tacho is (indeed) messed up?
Then i'll be stuck with two problems  :wall

Can't you mark the exact position of the old TPS before removing it, then if it still happens with the new one then at least you have something to fall back on.


You say it goes to 5Krpm when unplugged, that isn't normal, it should go to 3Krpm, so that would point to the problem being elsewhere?

[MC680x0]

REPLACE THE TPS.
:groan

[darrsi]

REPLACE THE TPS.
:groan

Explain why with NO TPS, it shows 5K rpm?

I'm normally the first to say they can play up or break down, because i've had to change 2 on my bike, but the reading he's getting unplugged is simply incorrect, hinting at another issue elsewhere!