fcr tps mount

craybait · Post by **craybait** » Tue Sep 15, 2015 12:27 pm

Purchased Some second hand fcr's from a trx with no TPS mount.Being technically challenged should i just try them without or see if it is possible to purchase a TPS mount[have searched some forums like KTM/Ducati were people fabricate them,looks difficult]
I have over racing pipe and one of Brian's ECU's.
Suggestions appreciated

Killerwhale · Post by **Killerwhale** » Tue Sep 15, 2015 12:45 pm

craybait wrote:Purchased Some second hand fcr's from a trx with no TPS mount.Being technically challenged should i just try them without or see if it is possible to purchase a TPS mount[have searched some forums like KTM/Ducati were people fabricate them,looks difficult]
I have over racing pipe and one of Brian's ECU's.
Suggestions appreciated

I ran with TPS mod for some years, tad sluggish off the line but no biggie. With ignitechÂ´s TCIP you can dial it out.
If you REALLY want one i bought my FCRÂ´s from keihin in Germany who make their own TPS mounts...

Trixed · Post by **Trixed** » Tue Sep 15, 2015 8:29 pm

I would try and track one down as having an active tps does make a positive difference and unlock that much more from a fabulous carburettor. An optimised fcr is amazing to use and enjoy.

craybait · Post by **craybait** » Wed Sep 16, 2015 2:31 pm

thanks for the help,
had a look at the fcr's today,they have a rod protruding from the left hand side which has a flet end for tps ,but no mounting flange.
will ring a keihin dealer to see what they have or try and fabricate ! later

Tarwetijger · Post by **Tarwetijger** » Thu Sep 17, 2015 9:30 pm

Killerwhale wrote: I ran with TPS mod for some years, tad sluggish off the line but no biggie. With ignitechÂ´s TCIP you can dial it out.
If you REALLY want one i bought my FCRÂ´s from keihin in Germany who make their own TPS mounts...

That's funny you say that. I just connected my Ignitech unit to the computer for the first time.

I see the TPS is disabled by default but you do get readings from the TPS.
What I don't understand is that closed throttle gives a high voltage (like 4,0V) and fully open is about 0,9V. In the ignitech program it looks like the opposite is expected; because with throttle closed it reads higher voltages at "100%" and fully open it lowers to 0%.
Shouldn't this be the other way around?
I hope some of you can clearify on this.

cobbadiggabuddyblooo · Post by **cobbadiggabuddyblooo** » Fri Sep 18, 2015 2:12 am

Yep, 100% should read approximately 4 volts + or - a few points.
0% Should read the lower value usually under 1 volt.

I've sent Jiri at IGNITECH a message about this issue so as soon as i get a reply I'll let you know Robert.
It may just be the referential voltage pin ( 17 ) and the ground may be reversed.
I recall something about 99 model TPS may not work but mine is a 99 model and works fine.????

Killerwhale · Post by **Killerwhale** » Fri Sep 18, 2015 6:28 am

Tarwetijger wrote:
Killerwhale wrote: I ran with TPS mod for some years, tad sluggish off the line but no biggie. With ignitechÂ´s TCIP you can dial it out.
If you REALLY want one i bought my FCRÂ´s from keihin in Germany who make their own TPS mounts...
That's funny you say that. I just connected my Ignitech unit to the computer for the first time.
I see the TPS is disabled by default but you do get readings from the TPS.
What I don't understand is that closed throttle gives a high voltage (like 4,0V) and fully open is about 0,9V. In the ignitech program it looks like the opposite is expected; because with throttle closed it reads higher voltages at "100%" and fully open it lowers to 0%.
Shouldn't this be the other way around?
I hope some of you can clearify on this.

Take TPS unit out and rotate it internally so closed trottle equals 0v?

cobbadiggabuddyblooo · Post by **cobbadiggabuddyblooo** » Fri Sep 18, 2015 7:14 am

Gidday Robert,
Quick confirmation from Jiri at IGNITECH and as I suspected , just reverse the wiring on +5 v with the ground to solve your problem..

Tarwetijger · Post by **Tarwetijger** » Fri Sep 18, 2015 8:24 am

I thought to ask here first before contacting Ignitech. But Jiri is fast with replies isn't he?

Great, I will look at the wiring, for swapping at the TPS or at the unit itself.
Now I come to think of it, it could be because the TPS is on the other side of my TDMR flatslides but I'm not sure.
Thanks lads!
Can I expect a big difference with/without TPS?
I have to admit the bike runs very well without it, with a lot of power and fuel consumption at least 22 km/l.

cobbadiggabuddyblooo · Post by **cobbadiggabuddyblooo** » Fri Sep 18, 2015 8:33 am

Bingo...
Will work back to front with the TPS bolted on the other side.
I'll make Rich aware as he has TDMR 40's too.

Tarwetijger · Post by **Tarwetijger** » Sun Feb 07, 2016 9:39 pm

cobbadiggabuddyblooo wrote:Gidday Robert,
Quick confirmation from Jiri at IGNITECH and as I suspected , just reverse the wiring on +5 v with the ground to solve your problem..

I tried but I still don't get it, as it doesn't work.
8<
Edit: sorted.

craybait · Post by **craybait** » Mon Feb 15, 2016 10:35 am

Purchased the TPS mount Killerwhale suggested and it fits perfectly onthe second hand FCR's I got from south australia. Have not fitted the carbs to the bike yet as I am moving to victoria end of feb and riding the bike around Tasmania march the 6th and it is going well now i replaced a dud iridium Plug . So will fit them end of March ,any suggestions on a mechanic/dyno in Victoria. I was think of Carl Batey [cafe carl] at wattle flats Bathurst.

BigAl-TC · Post by **BigAl-TC** » Mon Feb 15, 2016 2:45 pm

Hi Scott,
Check your maps as Bathurst is in NSW which is a very large distance from Melbourne.

craybait · Post by **craybait** » Wed Feb 17, 2016 1:28 pm

Thanks Alan,
In Wyndham at the moment must have fried the brain, Carl used to be in Bathurst and I assumed when he moved Wattyl Flats was not far.
Thanks for the tip,

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