help with air box on 1980 gs850g

[jforce11]

I'm having trouble finding out about the air box on my 1980 GS850G I just got the bike about 4 weeks ago I was doing some closer looking at it and on the lower back of the air filter box it has a hole about 4 in wide and 2 in high. looks like a factory hole but mine has tape over about 3/4 of it I took the tape of and the bike won't pull itself put it back on and its better.
Can any one show me a picture of what the back of it should look like i never seen a pic of the back part. Should the be a inlet hose or something hooked on there that is missing. The bike seems like it is under powered and I know that 850 should run out from under me.

Any help will be great. Thanks everybody.

[bwringer]

You're right -- there's supposed to be a rubber "snorkel" on the back of the airbox.

I won't be able to post a picture for a little while -- maybe someone else will come up with one.

[mark]

In the meantime, put the tape back on where it was, or until it runs as it should, otherwise you'll be too lean. Check your plugs for proper color. Having the airbox right is critical on your 850.

[Mr. Brown]

I have the same issue, anyone know where to get a new snorkel? I wanna get rid of the duct tape.