Airbox removal and re-install

[Canuck]

So I was replacing the fuel hose on my R80G/S. When i was taking out the airbox I thing the bolt that run down through the center of the airbox into the transmission was covered in something that appeared and felt to be like silicon. Is this normal? Should I silicon it before re-installing? Any ideas?

 

[Dogbytes]

Not that I'm aware of.

 

[solidstate100]

Unless there has been some sort of gearbox casing damage, that bolt hole (IIRC) is blind (ie not through into the gearbox guts) so it shouldn't need anything.

You could just probe the hole (fnar fnar) with a suitable er... probe, to check it bottoms out maybe?

 

[Voyager]

The Airbox bolt has an 8mm thread in the gearbox that goes through the casing. I shouldn't leak as its well above the oil level and the battery earth/speedo cable retainer/breather bolt should keep the internal pressure at atmospheric.

I shouldn't be necessary to seal that bolt thread - Unless, of course, you expect to invert the bike out in the boondocks .

Bob.

 

[Canuck]

Unless, of course, you expect to invert the bike out in the boondocks .

Bob.

This is certainly possible... hmm...

THanks for the reassurance everyone! I@ll clean it off before I reinstall it.

 

[Kenny]

Has been known for that bolt to unscrew...silicon probably just to hold/seal it but a bit OTT.

Besides..you shouldn't be playing with bikes with your knowledge !!

 

[Canuck]

I was just going to call you Kenny but I'm too cheap to pay the long distance!

 

[Rob Farmer]

Maybe they had emulsified gearbox oil and assumed it came in from the airbox. it isn't a blind hole it simply threads into the gearbox so its important not to have too long a bolt.

You can see in this top down shot that the hole goes straight through

inside another box shows the hole from the inside