New (to me) throttle bodies. What are these? - SV650.org

LewSpeight · 13-10-13, 05:06 PM

I've taken off my old throttle bodies to be replaced with some new, second hand ones, to try and diagnose the issues me and YorkieChris have found with the engine.

But anyway, the new throttle bodies have these black pipes coming off but they're capped off with little bung things.
The one taken off mine has only one of the 3 dangling ones capped off, why would the previous owner do this?
Pictures of the one taken off:

DJ123 · 13-10-13, 05:07 PM

IIRC they are capped from factory, my SV also had those

LewSpeight · 13-10-13, 06:06 PM

Thanks!
I've just finished putting them on. Put everything back together and now it doesn't start. The starter motor just turns.
The red 'FI' light just stares me in the face too.. (Stays lit. Not flashing) Any ideas? Need to get it started ASAP I need it for work tomorrow.

DJ123 · 13-10-13, 06:11 PM

Check all connectors are pushed together firmly

LewSpeight · 13-10-13, 06:19 PM

One of them wasn't clicked in properly *duh*

Thanks for your help DJ

DJ123 · 13-10-13, 06:23 PM

Always start with the simple stuff

13-10-13, 07:05 PM

What was the problem in the first place? have they made a difference? Just asking because I'm having mine balanced on Tuesday.

LewSpeight · 13-10-13, 07:10 PM

Fuel consumption wasn't the best and it was really twitchy and rough in terms of power delivery.
It feels a hell of a lot cleaner and smoother, and as for fuel consumption, only time will tell. I'll keep you posted though.

I'm hoping to get these balanced again too. Will keep you posted.

13-10-13, 07:18 PM

Mine is just a bit lumpy at tick over and low end revs so first port of call is a full service which I've done today and the the TB balance!! well see what happen's.

Tomor · 13-10-13, 07:40 PM

In regards to your first post, are they not the vacuum take offs? the pipes may be to enable easier tb balancing?

13-10-13, 05:06 PM	#1
LewSpeight Member Mega Poster Join Date: Nov 2012 Location: Halifax, UK Posts: 1,167	New (to me) throttle bodies. What are these? I've taken off my old throttle bodies to be replaced with some new, second hand ones, to try and diagnose the issues me and YorkieChris have found with the engine. But anyway, the new throttle bodies have these black pipes coming off but they're capped off with little bung things. The one taken off mine has only one of the 3 dangling ones capped off, why would the previous owner do this? Pictures of the one taken off: __________________ BREAKING MY SV - CLICKY CLICKY You laugh at me because i am different.. ....................................I laugh harder because you are all the same.

13-10-13, 05:07 PM	#2
DJ123 Member Mega Poster Join Date: Jul 2011 Location: Somewhere over there Posts: 3,245	Re: New (to me) throttle bodies. What are these? IIRC they are capped from factory, my SV also had those __________________ BMW F800ST

13-10-13, 06:06 PM	#3
LewSpeight Member Mega Poster Join Date: Nov 2012 Location: Halifax, UK Posts: 1,167	New (to me) throttle bodies. What are these? Thanks! I've just finished putting them on. Put everything back together and now it doesn't start. The starter motor just turns. The red 'FI' light just stares me in the face too.. (Stays lit. Not flashing) Any ideas? Need to get it started ASAP I need it for work tomorrow. __________________ BREAKING MY SV - CLICKY CLICKY You laugh at me because i am different.. ....................................I laugh harder because you are all the same.

13-10-13, 06:11 PM	#4
DJ123 Member Mega Poster Join Date: Jul 2011 Location: Somewhere over there Posts: 3,245	Re: New (to me) throttle bodies. What are these? Check all connectors are pushed together firmly __________________ BMW F800ST

13-10-13, 06:19 PM	#5
LewSpeight Member Mega Poster Join Date: Nov 2012 Location: Halifax, UK Posts: 1,167	New (to me) throttle bodies. What are these? One of them wasn't clicked in properly duh Thanks for your help DJ __________________ BREAKING MY SV - CLICKY CLICKY You laugh at me because i am different.. ....................................I laugh harder because you are all the same.

13-10-13, 06:23 PM	#6
DJ123 Member Mega Poster Join Date: Jul 2011 Location: Somewhere over there Posts: 3,245	Re: New (to me) throttle bodies. What are these? Always start with the simple stuff __________________ BMW F800ST

13-10-13, 07:05 PM	#7
Dalerst Guest Posts: n/a	Re: New (to me) throttle bodies. What are these? What was the problem in the first place? have they made a difference? Just asking because I'm having mine balanced on Tuesday.

13-10-13, 07:10 PM	#8
LewSpeight Member Mega Poster Join Date: Nov 2012 Location: Halifax, UK Posts: 1,167	New (to me) throttle bodies. What are these? Fuel consumption wasn't the best and it was really twitchy and rough in terms of power delivery. It feels a hell of a lot cleaner and smoother, and as for fuel consumption, only time will tell. I'll keep you posted though. I'm hoping to get these balanced again too. Will keep you posted. __________________ BREAKING MY SV - CLICKY CLICKY You laugh at me because i am different.. ....................................I laugh harder because you are all the same.

13-10-13, 07:18 PM	#9
Dalerst Guest Posts: n/a	Re: New (to me) throttle bodies. What are these? Mine is just a bit lumpy at tick over and low end revs so first port of call is a full service which I've done today and the the TB balance!! well see what happen's.

13-10-13, 07:40 PM	#10
Tomor Member Mega Poster Join Date: Oct 2011 Location: Yateley, Hants Posts: 2,306	Re: New (to me) throttle bodies. What are these? In regards to your first post, are they not the vacuum take offs? the pipes may be to enable easier tb balancing? __________________ Yam XT125R - Sold SV650 -Sold DL 650 K6 - Sold 2012 Street Triple R - For Sale - Linky here

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