Sloppy airbox boots

[Peter]

I just put new carb boots on my '81 750L. Man, reinstallation was a breeze! Problem is I can't get the airbox boots to fit snugly on the carbs. After riding for a few minutes, a 1/16" to 1/8" gap opens up on the bottoms of the two inner carbs and the outers look kind of stretched. It almost acts as if the carbs are sagging. Would wedging something between the airbox & frame serve to safely push the airbox forward?

[themess]

If they aren't snug, some part is wrong, and it's probably the boots. Boots and clamps are required. Go to Bike Bandit or to Alpha Sports and use their parts fiches on-line to (1) see how everything fits together (2) identify the correct parts.

[spchips]

I've had similar difficulty on my GS650GL.

1) Loosen everything, including the single clamp at the BACK of the airbox.

2) get a friend or jam something behind the airbox to push it as far forward as possible, <and hold it there until everything's tightened>.

3) Tighten the 4 intake clamps and the 4 front airbox clamps

4) last, push the rear airbox <boot> as far forward as possible and tighten. This will keep the airbox from trying to pull off the carbs.

[Steve]

Also, make sure the boots are rotated correctly. They are angled ever so slightly. 8-[


.

[Peter]

Thanks, everybody! I hadn't noticed any angle to the airbox ones but that makes sense. Hope I didn't stretch them too much already. I'll tear it down again this weekend and try to snug them up. And Spchips, thank you for that step-by-step!

[spchips]

edit

one change, that I wanted to clear up.

when the airbox is pushed forward, it can not be released until everything is tightened.