Triumph Speed Triple Help Needed: How To Route The Hoses On Throttlebodies ??

Hi guys, Proud owner of a 2017 speed triple I recently bought second hand.
Nice to see there is a community too!

My bikes idle is terrible. I assumed al it needed was a tune, but thats not the case. I tried balancing (tune ECU) but I could not get it right: the screw of cil 1 full open, of 2 an 3 completely shut. and still cyl 1 waay too high in vacuum. I then saw that the routing of the rubber hoses did not make sense, I think someone before me screwed up. There are two sets coming from each throtlebody,
I assume the MAP sensor gets signal from each trottlebody from the tube that is NOT near the set screws for balancing, but I don't know how the other set ( that supplies air to the idle setscrews) connects.

Does any of you have a schematic? I looked at two OEM part sites but they only show the hoses and 4 way connector for the MAP sensor, and there is not enough detail to see where the hoses go...

Help is much appreciated!

 

Ok, studying the internet I now know this:

One set of the vacuum lines (3 in 1) goes to the evaporative control system, and one set of lines goes to the MAP sensor.
I'm still not sure if there is a difference in the two connection points that each throttlebody has.. Has anybody ever looked at these?

 

Yeah, I would agree.
But the trouble is, I want to know. And wanting to know has higher priority than just having it sorted.

 

Thanks for the reply's. I found the details by looking at 2nd hand throttle bodies in Ebay

The MAP sensor should be hooked up to the 3 connectors away from the sync screws.
The evap system goes into the 3 connectors close to the 3 set screws.





i set it up that way, balanced the throtle bodies and got it all working.

While I was at it I noticed that you could adjust the throttle bodies of both cilinder 1 and 3 without removing anything at all... Since all screws influence all throttle bodies, if you're lucky you might be able to do a perfect balance by adjusting those on the outside!