gsxr inlet rubbers - Suzuki GSX-R Motorcycle Forums Gixxer.com
 
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post #1 of 11 (permalink) Old 09-01-2011, 01:09 PM Thread Starter
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gsxr inlet rubbers

hi all at the moment i have a set of mikuni rs 38 on my gsxr 1100 M 1991 later on i will be putting so kehein 41mm.
i have read and heard about people putting gsxr 750 inlet rubbers on a 1100 what is the advantage ? more torque etc and will my carbs fit on them ok or will be safe if they do not to have rubbers made bigger so they fit

thanks all
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post #2 of 11 (permalink) Old 09-01-2011, 01:53 PM
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Re: gsxr inlet rubbers

Quote:
Originally Posted by andy.jc View Post
hi all at the moment i have a set of mikuni rs 38 on my gsxr 1100 M 1991 later on i will be putting so kehein 41mm.
i have read and heard about people putting gsxr 750 inlet rubbers on a 1100 what is the advantage ? more torque etc and will my carbs fit on them ok or will be safe if they do not to have rubbers made bigger so they fit

thanks all
The advantage is that you don't have to use a press to get your carbs on
also it gives you a reason for a little headwork, you can have it port matched for the boots, not a huge difference but it will get rid of the little lip between the intake boot and port or you can go all out with the head, the 1100's really come to life from head and valve jobs esp if you oversize the valves a little, 30mm IN and 27mm EX if memory serves.
Do you have motor work done to your 1100??
41's are a bit overkill for a stock motor but they will work, 39's would be a better choice for a semi stockish motor.
If your buying new I would opt for the 39's unless your getting a smokin deal on the 41's.

Just my 2 cents.
Bill

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And No I Do Not Give A Shit What You Think About Me.

Last edited by Rychen; 09-01-2011 at 02:04 PM.
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post #3 of 11 (permalink) Old 09-01-2011, 02:35 PM Thread Starter
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Re: gsxr inlet rubbers

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Originally Posted by Rychen View Post
The advantage is that you don't have to use a press to get your carbs on
also it gives you a reason for a little headwork, you can have it port matched for the boots, not a huge difference but it will get rid of the little lip between the intake boot and port or you can go all out with the head, the 1100's really come to life from head and valve jobs esp if you oversize the valves a little, 30mm IN and 27mm EX if memory serves.
Do you have motor work done to your 1100??
41's are a bit overkill for a stock motor but they will work, 39's would be a better choice for a semi stockish motor.
If your buying new I would opt for the 39's unless your getting a smokin deal on the 41's.

Just my 2 cents.
Bill
at the moment the engine is stock except cams i want to put a big block on either a 1216 or 1340 i thought 41mm kehein would be best but i am open to help as not sure what is best and what will give me best performance without lag just that seen few articles where people have put these carbs on help is much appreciated

many thanks
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post #4 of 11 (permalink) Old 09-01-2011, 04:02 PM
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Re: gsxr inlet rubbers

A 1216 can make a great street / strip motor, you have cams already a little massaging of the head and it would fly and a set of 39's would feed it well.

A 1340 with all the supporting mods is going to want more, I would def go with 41's on it, it's street manners can be touchy tho with heat being the biggest enemy.
granted you will have heat for an enemy in anything you do to it and even now being stock, the best thing I can suggest is to step back and ask yourself what kind of riding your going to do with it and then build according to that.

Bill

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post #5 of 11 (permalink) Old 09-01-2011, 04:16 PM
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Re: gsxr inlet rubbers

And here I thought that Suzuki came out with a line of condoms...haha Great thread title!
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post #6 of 11 (permalink) Old 09-01-2011, 04:21 PM
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Re: gsxr inlet rubbers

Haha thats funny
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post #7 of 11 (permalink) Old 11-17-2012, 03:29 PM
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Re: 1991 1100 gsxr inlet rubbers

Hi Guys,

Im new to the thread/forum and like the info coming through u guys.

Im in australia and the gsxr 1100 have the makuni's 38, I have taken the bike to a bike shop and they push it into the corner for 3mths.

I have got a new set of rs38s makuni's and they are the same width as the old ones. The only problem i have is that the out side diameter is smaller then the originals and the boots are a loose fit on them.

Im doing it myself and any advice is helpful, its a great old bike and i would love to get it cranked up again.

George
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post #8 of 11 (permalink) Old 11-17-2012, 04:10 PM
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Re: gsxr inlet rubbers

You will need the carb intake manifolds from an 1100 around 1990. You must have had 38 Mikuni CV (slingshot) carbs on there before as they have larger intakes even tho they were from a 750.
Hopefully you kept the old carbs. Someone will want them.
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post #9 of 11 (permalink) Old 11-18-2012, 02:11 AM
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Re: gsxr inlet rubbers

Quote:
Originally Posted by tonyc9928 View Post
You will need the carb intake manifolds from an 1100 around 1990. You must have had 38 Mikuni CV (slingshot) carbs on there before as they have larger intakes even tho they were from a 750.
Hopefully you kept the old carbs. Someone will want them.
Thanks tony, ive still got the old ones.
thank for your time.
george
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post #10 of 11 (permalink) Old 11-18-2012, 07:40 AM
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Re: gsxr inlet rubbers

Quote:
Originally Posted by tonyc9928 View Post
You will need the carb intake manifolds from an 1100 around 1990. You must have had 38 Mikuni CV (slingshot) carbs on there before as they have larger intakes even tho they were from a 750.
Hopefully you kept the old carbs. Someone will want them.
89-90-91-92 1100 in us all with 36 bst
89-90 rest of the market 36 bst
91-92 with 40
38 carbs are only for 750 90-91 (and 92 in us)

BUT
rs 36 and 38 must be fitted with 36 mainfold
rs 40 with 38 or 40 mainfold


no 11 came original with 38 bst
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post #11 of 11 (permalink) Old 12-01-2012, 03:53 PM
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Re: gsxr inlet rubbers

Thanks guys for the feedback, the bike is up and running.

Just got to tune it

Thanks guys
george
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