Hi guys iv got everything wired in i think but my clocks keep jumping to 8000revs does anyone know how to sort it??

Cheers Drew

Sounds like one of the diagnostic modes built into the clocks. For example if the EXUP is not connected it will alternate between correct rpm and some fixed value of rpm as you report. Have you got the R1 worshop manuals?? It describes this behaviour in there.

Cheers

Paul

Do you know what page i cant see it??

Assuming your using the 2000/2001 carb model, it's page 66 titled Self Diagnosis.

I have attached an exert (I hope it works) that shows the various modes which hopefully is a bit quicker.

Regards
Chris
Rescued attachment revs.JPG

Its a 99 iv got

Sorry mate, I don't have any info on that one.

For what it's worth. my money would be on Paul's suggestion of EXUP.

Regards
Chris

Iv had a look at my manual and it says its the fuel warning light and sensor. ill need to have a look and see what i can do .

Cheers for the help guys

Drew

BTW, I got round the fuel sensor issue by fitting a variable resistor in the loom to mimic the fuel sensor. They cost about 20p at Maplins and you just twist the resistor until the clocks are happy.

I was looking on a web site the other day about the EXUP. It would appear that race bikes have this disabled as it has no benefit on the track. You can not just put a resistor across were the servo motor is because it sends out pulses at start up. If the management system does not see these it sends out error codes and the rev counter pulses. The site produced a circuit to mimic the servo using a couple of semiconductor chips which means the servo and value can be removed. If anyone is interested in the circuit I will post it when I get in from work.

Hi chris how do i wire it ??

Iv got the clocks to stop pulseing up to 8000rpm but the petrol light is on iv put plenty of petrol in.

I connected up a 1k variable resitor to the wires that would have gone to the fuel tank sender.

It was simply a case of chopping the connector off and soldering the wires onto the resistor.

At one extreme the resistance is 0 and the other 1000 ohms, so you twist the resistor until you find the resistance that stops the light flashing. Off the top of my head it was about 650 ohms but don't quote me on that.

Hope this helps.
Regards
Chris

Thank chris i will have a go tomorrow.

Hi chris i got a 1k resistor today and it works fine thanks for the help

Cheers Drew