Topic: Air filter...

[Scout]

Well, I decided to look at the air filter on my K8, and I'm a little stumped... The air filter housing says 750F on it, and there are two screws on the bottom of the lower cover, but they are embeded in the plastic - flush with the surface. There is no way I can turn them without digging into the plastic. What a hell??

Is there another way to take it apart to remove the air filter?

Scout

[Scout]

I reread my post, and I don't think I made it clear. I meant, when I turn the screw on the top, the bottom one turns, however I can't get anything on the bottom one, because it is flush wit the plastic.  I guess the only thing I can do is dig into the plastic around the bottom nut with something very thin, right?

Scout

[Hondalubr]

I reread my post, and I don't think I made it clear. I meant, when I turn the screw on the top, the bottom one turns, however I can't get anything on the bottom one, because it is flush wit the plastic.  I guess the only thing I can do is dig into the plastic around the bottom nut with something very thin, right?

Scout

Sounds sort of right to me. Mine did the same thing. I have a 78 750F. I ended up having to actually cut the plastic down until I could get a pair of vice grips on the head of the bold. The plastic was quite thick and I didn't cut through it to make a hole, but I took thin cuts with a very sharp knife to keep from cutting through it. All I know a 5 minute air filter change turned into nearly 2 hours. That being said, Good luck!
Hope both of yours don't spin like mine did.

Mike


P.S. While I had the airbox open I also took extra time to clean all parts very well. I wanted to make sure I would not have to get in there for a good long time, seeing as though it took so long to get in there in the first place.

[eldar]

WHOA!!!!!STOP!!!!

There are 2 nuts on the TOP of the airbox. You turn these. THey thread INTO the bottom nuts. Thois bottom nuts are embedded into the plastic to stop them from turning. THEY ARE SUPPOSED TO BE THIS WAY!!!.

The housing will say 750F on it. That is fine. Both engines used the same airbox.

[eldar]

When the bolts unthread, the halves will come apart.

[Hondalubr]

When the bolts unthread, the halves will come apart.

Didn't you read his post? 

He said the embedded bolts are turning as well! The same thing happened to me.. Nothing I did stopped them from turning in the plastic. I had to remove the plastic surrounding the embedded bolts to get the vice grips to hold them so I could turn the top bolts. I even tried crazy glueing them and letting it dry over night. But the bolts were too tightly attached and this too failed to hold the bolts within the embedded plastic. Just telling him what I had to do to complete the job at hand as well as offer some advice as to how to do it without completely messing up the housing.

Mike.

[frostypuck]

Happens all the time. The bolt becomes seized in it's sleeve and thus the bottom half of the sleeve (which has a hex head on it) rounds out the similarly shaped recess that it sits into. Unless you can get a needle-nose pliers on the bottom to hold it while turning the upper part, you're stuck having to remove the "wall" of the recess. Once you do get it apart, put a bit of Nev-R-Seize on the thread of the bolt prior to putting it back into the airbox.
All the airboxes say 750F on them.Even well before the birth of the F model bikes.  Means nothing.
Chris in Boston

[eldar]

No I didnt read the second one. So I missed that. I wanted to stop him from doing that very thing since I saw he was still logged on. I jumped the gun! Kinda like trying to start the bike before you put gas in it.

 was not jumping on anyone, just to make that clear.

[theunrulychef]

I had the same problem when my local dealership overtightened them after they f'ed up my carbs.  I was told on these forums to weld a nut to the bottom bolt, but I decided to try something before doing that.  If you have an air impact wrench (3/8" preferably), try un-tightening the bolt with that.  The speed will hopefully unseat the threads before the bottom bolt starts spinning in the plastic.  Then, once you get them apart, put some silicon / jb weld / glue etc on the bottom shaft when you put it back in so you can get it off next time.  I also filled in around the bottom bolts & worn out plastic after they were in to take up any extra spinning room.

Good luck,
Jay in Philly

[dusterdude]

geeze eldar,there you go again.

[Scout]

Well, looks like somebody already did this (the shaving of the plastic) on one side on my airbox. I got that one opened pretty easy with a pair of angled needle nose plyers, the other one proved more dificult. I ended up sticking two knifes, one on each side of the bolt, and that gave it enough support to work...

Scout