sanding exhaust...

[Honzilla]

Hi folks,

My 91' CB 750 has an exhaust that looks like it has come from the 1920's!!!  Quite gross!

I just bought a dremel tool the other day and I wanted to use it to sand the exhaust from the heads to the collector thingy under the bike...

Is it difficult to remove the pipes, from the heads back?  The WHOLE thing.

I guess I could do it while it is on the bike, but I live in Hong Kong and it is ridiculously hot here. I've got no garage, NOT NICE...

[TOOLS1]

I think I would try doing it on the bike first. If you have places too tight to get your Dremel into; use strips of sand paper. Just hold the ends in each hand, and use a sawing motion.
TOOLS

[Honzilla]

I was afraid you were going to say that!  I was really hoping someone would say, "oh yeah, exhaust is super easy on and off in 5 minutes."

Just being lazy, I wanted to do it on my coffee table in the air conditioning rather than outside in 95 degree heat in the sun with 90% humidity!!!

Also, under the bike there is something that looks a bit like a collector/muffler/cat/thingy...  How can I see or sand the top of it between the frame and the exhaust itself?  Also I want to repaint it with a SUPER high temp black paint, I don't think I could get the paint in those little nooks and cranies.

By the way......  Why the suggestion of keeping it on the bike?  Will removing/reinstalling the exhaust effect the tuning?

[LukeM]

The advantage is the leverage you get, if you use the emery cloth strips. I believe the pipes would flop around on your table. However, the process for removing the exhaust is not difficult:

Put the bike on the center stand.
Loosen but do not remove the bolts at the cylinder head, the collector, and the mufflers.
Once everything is loose, remove all the bolts, and lower the exhaust.
Remember to prep the metal very well before painting. It should be VERY CLEAN so the paint adheres, and you have a good smooth finish on the pipes.

You should replace the exhaust seals (small copper rings) where the pipes meet the head when you put everything back together.

Good luck with whichever method you choose. Upload some pics when it's al done.

Luke M