Topic: Got my 750 KO air box, well not quite

[dhall57]

Well it's not the KO box I thought I was getting as you can see, but it is a pretty decent shape 71-76 box. The original KO carbs were replaced years ago with the later dual cable setup #657b type. The PO said this box must of come with  the newer carbs. He has no idea where the original candy blue KO box is or the KO carbs either. But this box will do just fine right now it didn't cost me anything and it will allow me to get rid of the pod filters that I don't like. I'll clean it up some and probably put a fresh coat of black paint on it and install a K&N filter. The KO is getting close to being road ready  

[736cc]

Usually the rubber intakes on airboxes harden w/ age and heat, replace them with a nice new set thats soft and pliable and save yourself much swearing and grief during installation.

[VTCBike750]

Usually the rubber intakes on airboxes harden w/ age and heat, replace them with a nice new set thats soft and pliable and save yourself much swearing and grief during installation.

+1

[70cbk0]

I did this, and it's totally holding up. Paint is sticking, no problem

http://forums.sohc4.net/index.php?topic=90058.0

[Johnie]

If you do change those boots pay close attention to their angle when you take them off. The new ones have to have the same angle or it will be a bear to get them back on. I put a piece of masking tape on the top of each old one before I took it off. Then I knew the angle of the new ones.

[Old Scrambler]

You may be able to make that box and rubbers look and feel like new with Wintergreen oil...........'search' for the how-to

[ekpent]

And if the rubbers are not rock hard and cracked there is also the old heat gun trick to soften them up during install,works everytime 

[dhall57]

Yeah this later air box is not the treasured KO box, but its in great shape no cracks period. The PO put a sorry spray can paint job on it. Whats the best thing to remove the old paint and not harm the plastic so I can repaint it. I will have to replace the rubber tubes and top seal though.

[ekpent]

Would brake fluid harm the plastic ?? -Probably hurt the paint.

[VTCBike750]

Dont know. Maybe just smooth sand it and paint over it?

[zzpete]

Take a look at this link. I've tried the peanut oil trick on the very same type of air box and it turned out pretty good. It still looks good a  year and a half later!
http://forums.sohc4.net/index.php?topic=62328.0

[KingCustomCycles.com]

If you do change those boots pay close attention to their angle when you take them off. The new ones have to have the same angle or it will be a bear to get them back on. I put a piece of masking tape on the top of each old one before I took it off. Then I knew the angle of the new ones.

They have alignment tabs and if I remember correctly, they all go to the 12:00 position (up)

[KingCustomCycles.com]

Mineral spirits will take off most all rattle can paints, lacquer thinner will do the rest.  The plastic on those boxes is pretty durable stuff, I have never melted one with any solvent including MEK and brake cleaner.