Carb mounting Question

[johnod]

1979 GS1000S


I installed engine today and found something i have to ask about.
I installed all new carb rubbers , both ends, in and out.
There does not seem to be much overlap on carbs .
If I shove carbs all way into head boots, then the airbox boots don't fully engage to the flange on carb.
If I shove carbs into airbox boots all way to flange on carbs, then the head side is not in all the way.
On head side of carbs there is a grove in carbs ( carb horn?) and the boots only just reach that. The engine is mounted in correct position. Can someone advise me please?

Thanks

If you look at photo in link , ( picture eight) you'll see the grove I mentioned, the boots are only reaching to the forward/head side of that.
I assume that is wrong.
Help.

https://picclick.com/77-79-Suzuki-GS-750-B-E-L-850-291856689673.html#&gid=1&pid=8

[Redman]

I dont have expereince with any 1000 nor any S, but my usual problem is the opposite; everything fits in tight.

Maybe a picture of your situation might help.
Picture that shows the boots on both sides and how the airbox is mounted.

.

[Redman]

.........
I installed engine today .......

... hum.... maybe the engine mounts....?

[jsandidge]

Is the airbox plastic on that model? On my 850 the plastic at the front of the airbox had bowed in some. A little heat on the plastic and I was able to push it back out. You should also compare all your new rubbers to the old ones to make sure they are not shorter.

[johnod]

Airbox is plastic, will check that. New rubbers same as length as old.

Are the carb to head rubbers supposed to bottom out against control assembly plate?