Featured Welcome Triumph Twin Power to the forum

Welcome to them. Just bought a OBD cable couple of weeks ago as well from them.
Quality cable and quick service as well.
Now no doubt there will be a discount

 

Good crowd, all tuned up already though!!

 

I've had dealings with Mike at TTP when I had my Bonny and always found the products and service to be excellent.

 

Yup my Thrux is all ttp'd up, on my 2nd TTP 3! Shame they don't do upgrades for people who have already got the map but you have to buy it at full price as it might have been upgraded

 

I bought the SAI (air injection) removal kit for my Speedmaster from TTP last year. Seems to be a very good company with good customer service

 

I recently bought the Fire Starter Ignitor and bike runs much better than it did. Will definately get more parts from TTP, thanks Mike )

 

Does anyone have any experience of if their maps will help with the snatchy throttle response from closed. Setting off from parked is really easy to stall and entering round abouts can be a night mare one minute your on over run as you approach and then as you make the slightest opening of the throttle it lunges forward.
So america 2012 efi.
Ais removed.
O2 sensors removed.
Short tors pipes with remap for short tors +10% from memory.
Any suggestions (about the bike) appreciated.

Cheers
Andy

 

The throttle on my 2010 T100 had a snatchy throttle, until I removed the AI system, the O² sensors and installed TTP map No. 3.

After that all was silky smooth.

 

Have you reset your tps properly? Might be an idea to reload your map, if it's been dealer serviced they flash the map and put their own on, don't forget to copy the one that's on there before you do anything just in case

 

Thanks, I loaded the map when I changed the pipes. From memory (I'm going to have to remind myself )the tps was reading slightly out from is it 0.7v or something at idle. I'll have a read next week and get my laptop out. I have a copy saved of the original as you never know.

 

Have you started the bike from cold, don't touch the throttle, and let it idle for 12 mins or so?

 

Yes I've tried that ,no change. Reading Google suggests that when the throttle is closed the fuel is cut and then when you open the throttle there is then a delay in the fuel getting back on, one work around suggested is is to reset the TPS to 0.7v at idle so that the ecu doesn't think that the throttle is closed so doesn't cut the fuel and hence doesn't snatch when the throttle is opened again. Half what I read says all bonneville engine have this issue and the other half seem to have done anywhere between loads of things and nothing to curd this issue.. if I could be sure of a cure or work round even at a small cost I'd be happy, but currently it's spoiling an otherwise enjoyable bike.
Andy

 

Really sorry to hear it, I feel your angst, mine cleared up when I got rid of the SAI but you have obviously done this, maybe look at airbox and filter mod and go for TTP 4, TTP3 is for long pipes, or better still contact TTP and see what they say. To me it sounds like you have the wrong map

 

I think I'll plug in the laptop tomorrow and check tps voltage etc and then give ttp a call and see if they can offer any advice. If one of their tunes will solve my issues (well bike issues would be a start) then I guess it would be money well spent but I don't want to spend £100+ only to have the same issues that I have now.
Andy

 

Go on their web and have a look at their maps, it sounds as though your set up falls between 2. But then again if it was ok before maybe it's a cable adjustment thing, I've decided it couldn't be a cable thing but could it?

 

It's never been OK sadly. I swapped the pipes removed ais and o2 sensors loaded a new map adjusted the chain and throttle cables all in the hope of improving the on off nature of the throttle. I only bought the bike in August and did about 1500 miles before I stopped using it for the winter as I only go out on nice days, I've just got the mot done and I'm looking forward to getting out on it again but the few miles to the mot and back reminded me of the poor on off throttle. Previous to this I've had in line 4 cylinder bikes that had faultless fueling but tended to go quicker than I wanted to go with the blink of an eye. Hence I was hopeing the america would be a nice steady ride. My wife now comes out with me and other than the fueling it's all very pleasant. Hopefully I'll get there.
Andy

 

Hi Guys,

thanks for the warm welcome.

If you need to speak to us about any of our products or services, it's best to email us from our site. I will be popping in to the forum and having a read from time to time, but if you want a quicker answer, email is best.

Regards

Mike

 

I've only ticked like because I admire your honest Andy not because I like or take any pleasure in your dilemma.
I have a 2012 Bonnie EFI and it is exactly your type of experience that has put me off removing the air intakes, lambda sensors etc.
Bike runs perfectly, bit of popping on deceleration, but I am a firm believer in leaving well alone.

 

Hi Andy
You're bike sounds exactly like mine so I'll watch this with interest
I have a speedmaster 865 efi
I have short tors fitted by previous owner
I removed SAI myself and fitted k&n air filter hoping that this would eliminate the on off throttle snatchiness
It doesn't pop as much on over run but throttle snatchiness is the same
Mini roundabouts and slow speed manoeuvres are making me feel like I'm learning how to ride all over again
Like you it's spoiling what is otherwise a very good bike