What's missing off here?

Tritey · Banned Joined: 01 Jan 2014 Karma :

Neighbours daughter has bought a GSX 750F 1991 model and it runs/rides ok. She's cleaned it and noticed what she thought was something missing. Haynes book of lies did not come up trumps and she's asked me what should go there and/or what does it do and I honestly don't know?

Anyone?

The tape wrapped wires are not damp from anything leaking out of the spurious bit, just looks damp from where she's cleaned it..

The spurious bit....

https://i62.tinypic.com/szj4ih.jpg
https://i62.tinypic.com/29zpoqb.jpg

gavcarter · Could Be A Chat Bot Joined: 28 Mar 2009 Karma :

pretty sure its usually a return spring......

Rogerborg · nimbA Joined: 26 Oct 2010 Karma :

gavcarter · Could Be A Chat Bot Joined: 28 Mar 2009 Karma :

Could also be a later set of carbs with the throttle position sensor removed?

P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

Instantly thought this...

https://i.ebayimg.com/t/SUZUKI-GSX750-GSX-750-F-TPS-THROTTLE-POSITION-SENSOR-/00/s/MTIwMFgxNjAw/z/rYgAAOxyM89Sc9tL/$(KGrHqFHJEwFJhg2E0grBSc9tN1B3!~~60_35.JPG

However on a bike that old.. I doubt it.

Tritey · Banned Joined: 01 Jan 2014 Karma :

Thanks so far. She has just noticed there is fuel leaking out of the carbs the nearest one to the left hand side of the bike furthest from the spurious bit; tomorrow I'll have a look, hopefully it'll be Petcock and not a stuck needle or some other shit that's going to be difficult..

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

About the right position for a throttle position sensor (as fitted to 1200 Bandits) but not aware the gsx750f had one.

If lucky it is a 1200 Bandit engine and carbs Razz

All the best

Keith
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Bezzer · World Chat Champion Joined: 14 Apr 2005 Karma :

It's a TPS, or more precisely it's a missing TPS, few of the old oil cooled Suzukis - Bandits, Teapots have them. Many just bin it as on that one, it only alters the timing a touch at constant throttle openings/cruising to improve mpg. Which in the real world is zilch, doesn't affect the running in any way if not fitted can only cause a problem if it is fitted but malfunctioning.
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gavcarter · Could Be A Chat Bot Joined: 28 Mar 2009 Karma :

Tritey · Banned Joined: 01 Jan 2014 Karma :

Ok, thanks all. So my question now is; does she need the missing bit? is the missing bit responsible for the fuel leak? The bike pulls bloody well, no flat spots at all.

AH, just refreshed and read Bezzer's post, ok thanks. Will investigate fuel leak tomorrow. Cheers all.

P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

Not needed unless as said, its not the original engine.. then again, the difference it makes is nominal.

hmmmnz · Super Spammer Joined: 22 Aug 2006 Karma :

i had one on both the bandit 12 and cb1000, having it disconnected made absolutly no real world difference on either bike,
leave it off, one less thing to go wrong
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