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Discussion Starter · #1 ·
(Stock 2011 T100 with TORS fitted and mapped to suit by previous owner.)
Anyone else had problems with a snatchy throttle? The throttle response isn't progressive at all, and even the slightest twist causes an immediate surge, making smooth riding difficult! Also, the exhaust pops on over-run (but doesn't back-fire), is this normal with the above set-up?
Any thoughts, experiences or suggestions?
Thanks!
 

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(Stock 2011 T100 with TORS fitted and mapped to suit by previous owner.)
Anyone else had problems with a snatchy throttle? The throttle response isn't progressive at all, and even the slightest twist causes an immediate surge, making smooth riding difficult! Also, the exhaust pops on over-run (but doesn't back-fire), is this normal with the above set-up?
Any thoughts, experiences or suggestions?
Thanks!
That doesn't sound right. Either the tune isn't correct (what exhaust is it?), you have unmetered air coming in from a leak somewhere or throttle cables maybe binding? Is the SAI or o2 sensors still installed?
 

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Bonneville Black 2011 customised 904cc, 11:1, 813c cams, 44mm Street Triple TBs , TEC 2 into 1
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AIS still in situ along with O2 sensor and equipped with genuine Triumph aftermarket pipes.
Unfortunately the Standard Tune ECU Maps are prone o being snatchy on the throttle however first recommended steps would be:

  • Purchase a OB2 (TTP sell them) and connect to bike using Tune ECU with a laptop or Android device.
  • Check Map sensor vacuum tubes are sealing well on inlet manifold spigots and at Map sensors and not leaking.

  • Check Throttle Position Switch and adjust for 0.6V reading
  • Check Throttle Body Sync and just to sensure they are equal

* If OK and still have an issue pourchase a TTP custom Map to suit your bike modifications and dowload into ECU and your problems will be gone and your Bonnie will run so so sweet...

All the best with your bike.
 

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Discussion Starter · #5 ·
Unfortunately the Standard Tune ECU Maps are prone o being snatchy on the throttle however first recommended steps would be:

  • Purchase a OB2 (TTP sell them) and connect to bike using Tune ECU with a laptop or Android device.
  • Check Map sensor vacuum tubes are sealing well on inlet manifold spigots and at Map sensors and not leaking.

  • Check Throttle Position Switch and adjust for 0.6V reading
  • Check Throttle Body Sync and just to sensure they are equal

* If OK and still have an issue pourchase a TTP custom Map to suit your bike modifications and dowload into ECU and your problems will be gone and your Bonnie will run so so sweet...

All the best with your bike.
Thanks for the info... It all sounds quite complex!
 

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Bonneville Black 2011 customised 904cc, 11:1, 813c cams, 44mm Street Triple TBs , TEC 2 into 1
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Thanks for the info... It all sounds quite complex!
Not really its how to Tune the efi Bonnie so you either take to a good workshop who know Triumph and what they nare doing or purchase and perform the required items...... un fortunately they are the options maybe a Triumph Rat in the USA near you may assist you?
 

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x2 on what Greg said. You said the PO installed the "correct" fuel map, but do you know that for sure? Did a dealer do it?

If you purchase a tune from Twin Triumph Power, (TTP) they give you everything you need and clear, easy to follow instructions. But since you still have the SAI installed, I'd recommend that as the starting point for the snatchy throttle. Lots of threads on here about that (like Snatchy Throttle ). Greg's suggestion about the tuneecu is a good one for a less exepnsive option, but if you are buying an obd2 from TTP, then might as well look at their options, the tunes aren't that expensive. Their customer service is top notch, so email them with questions and details about the bike and they should have something for your needs.

Any independent shop can help you with air leaks if you aren't comfortable looking for those.
 
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