1991 Gsxr1100m Petcock help! - Suzuki GSX-R Motorcycle Forums Gixxer.com
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post #1 of 8 (permalink) Old 02-20-2019, 01:17 PM Thread Starter
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1991 Gsxr1100m Petcock help!

Hi Guys, would appreciate some help if possible?

I'm re fitting the fuel tank on a UK Gsxr1100m I've just bought, there are two fuel lines which I'm ok with, theres the drain hose which I'm ok with.

What I cant work out is where the additional hose on the back of the petcock fits in, Im sure it's a vacuum hose and I think it's supposed to go to carb #3 which is capped off with a rubber cap, all 4 carbs have the rubber cap fitted.

The hose I'm talking about is quite short and has what looks like a metal nipple in one end.
What I have noticed is on carb #4 manifold intake boot there is a small hole that this hose and nipple would fit?

I've looked at manuals and hose routing guides and I cant find where the hose fits on the carbs?

Would really appreciate any help

Cheers
Liam
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post #2 of 8 (permalink) Old 02-20-2019, 03:18 PM Thread Starter
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Re: 1991 Gsxr1100m Petcock help!

Ok, so after searching various posts in the forum I'm starting to think that the petcock vacuum hose does indeed fit into the hole on the ntake boot #4

Just hoping someone will confirm this?

Liam
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post #3 of 8 (permalink) Old 02-20-2019, 03:38 PM
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Re: 1991 Gsxr1100m Petcock help!

yes as itīs vacuum operated i will need to connect it on mainfold or (bst SS) carbs.
Also there is a diagram on the workshop manual.
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post #4 of 8 (permalink) Old 02-20-2019, 03:41 PM
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Re: 1991 Gsxr1100m Petcock help!

Carlsalter.com For a manual
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post #5 of 8 (permalink) Old 02-21-2019, 10:30 AM
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Re: 1991 Gsxr1100m Petcock help!

Quote:
Originally Posted by 1Slowrider View Post
Carlsalter.com For a manual
search function of the forum........
https://www.gixxer.com/forums/15-oil...scans-etc.html
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post #6 of 8 (permalink) Old 02-21-2019, 10:33 AM
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Re: 1991 Gsxr1100m Petcock help!

here:
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post #7 of 8 (permalink) Old 02-21-2019, 02:03 PM Thread Starter
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Re: 1991 Gsxr1100m Petcock help!

Thanks for the info and diagram

Is it possible then that the hole I can see on the carb intake rubber boot on carb #4 does exactly the same job if I connect the vacuum hose there? Is it supposed to go there?

Looking at the diagram and other material the vacuum hose should connect on top of carb #3

I obviously want to get it right, may try and post some pictures of the hole on the intake boot.

Thanks guys, help is much appreciated.

Liam
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post #8 of 8 (permalink) Old 02-21-2019, 02:34 PM
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Re: 1991 Gsxr1100m Petcock help!

No itīs correct for you model the line on the mainfold number 4.
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