Mounting GS1100L carbs

[Doug8520]

Hey guys,
I just removed the stock airbox from my GS1100L and installed the pod style air filters. With the stock airbox gone, the carbs hang from the motor like a spring board. I have had issues on other motorcycles with the carbs bouncing freely. Does anyone have a suggestion for mounting the carbs to prevent them from bouncing? Does someone sell a bracket?

Thanks!
Doug

[chef1366]

Shaft drive?

[Doug8520]

I'm sorry, I should have listed more information. The bike is a 1980 GS1100L, Chain drive, stock motor, and stock frame. Pretty much everything on the bike is stock except the vance and hines 4 into 1 exhaust and the newly added air filter pods.

Thanks for reminding me.

[Suzuki mad]

I think you will have to make your own bracket from the upper carb rail to where the airbox attaches to the frame.

Don't know anybody who makes one.

Suzuki mad

[Don-lo]

Good thing to worry about: the pressure will strain and eventually seperate the front boots. I just use a coat hanger wire around the back of the carbs up to the frame.

[chef1366]

I have the same bike. Get new intake pipes and run it. The new ones will be stiffer and hold the carbs better.
What jetting did you use?

[Doug8520]

Thanks guys for the replies,

Chef1366, I started with the jetting setup that Dyna suggested in the instructions: DJ138 mains and the 3rd notch on the needle. I figure I will start there and begin the process of finding the magic combination. I haven't started looking around on here yet for this configuration and the best jetting set up. It looks like you have the pods in your picture. Any suggestions?
thanks,
Doug

[J_C]

Chef's is different now because he rebored his cylinders.

This is what I have, with your exact setup (Bill correct me if I'm wrong here):

170 Pilot Air Jets
47.5 Pilot Jet
132 Mains
Needle clip @ second from bottom.

[chef1366]

With the V&H pipe I'd raise the needle one more notch (lower the clip on the needle one notch)
The 138 is good. I would go up to 47.5 on the pilot jet. The idle mixture screws will have to come out around three turns.
I would also bump up the pilot air jet to 165. I did 170 and it was too lean. Popped like crazy. This will smooth out the idle.

[J_C]

165?!? I think I may need to beat you with a rack of carbs Bill.


And I'm running 138s?

[chef1366]

Chef's is different now because he rebored his cylinders.

This is what I have, with your exact setup (Bill correct me if I'm wrong here):

170 Pilot Air Jets
47.5 Pilot Jet
132 Mains
Needle clip @ second from bottom.

I thought I put in the 138s

[J_C]

I don't remember, I just went back and read through your old emails of what you did originally.

You definitely have me running 170s pilots though

[chef1366]

Delete all those old emails. You kill me!
Guinea pig!

[Doug8520]

Cool, that will save me a bunch of trial and error. Thanks!

Where can I buy 170 pilot air jets and 47.5 pilot jets? My little dyno jet kit didn't come with those. I think I remember reading somewhere on here about where to get them individually a while back, but I can't remember.

[chef1366]

Call around locally for the pilot jets. If you can't find any try Denniskirk.com.
Pilot air jets are a little tricky. I used motorcyclecarbs.com once but thought it was a ripoff. So I tried https://www.justatv.com/pages/dirt_c...arter_jets.htm

$5 a jet and fast shipping. You have to send the Paypal payment to an Email.
#B42/55 Part number CW004-659 (for the 165)