Join Date: Mar 2008
Location: Edmonton, Alberta, Canada
Carb Boots Tech Tip
I didn't notice any other place to post this, so here it is.
If you own an older bike, and you've ever had the carbs off, you'll find that the rubber boots get hard as rocks after a while.
I just spent an hour, working on a Bro's carbs, ( its a CB750, but the principle is the same) His carb boots were hard as stone, and it was a fight to get the carbs off, near impossible to get them back on.
An old hot rodders trick, is to boil the boots in Wintergreen Oil and water.
Today, I boiled 4 boots off a 74 CB750.
The procedure is as follows....
Remove your carbs and intake boots.boots.
Add 2 oz of Wintergreen Oil to a coffee can 3/4 full of water
put a grate of sorts in the bottom of the can to keep the boots off the bottom.
Drop in the boots.
set the can on the stove, and bring to a low boil.
Simmer the boots for an hour or so.
Pull them out and wipe them off.
They should be nice and pliable now.
A little armor-all will bring back the shiny black.
Reinstall the boots and carbs. Use new clamps if you can, at least make sure your originals haven't stretched too much.
IMPORTANT: Do NOT do this in the house. Use a camp stove, or barbecue outside on a day with a bit of a breeze. The smell can be quite strong..
Do not use a pot you want to cook with again.
I did my first set in the garage on my Coleman stove. It worked great, but the smell took weeks to dissipate, and the pot was ruined.
Besides that, my buddy and I both stunk like Absorbine Junior for a while.
85 VN750 basketcase
( yes its a true 750, and no smog controls, its good to be Canadian)
It will have
a rebuilt 96 top end, rebuilt 85 bottom end
stripped, lowered, raked, bobbed,
reed valve boxes shaved
ported and polished
right side dump exhaust
heads and cylinders shaved for compression
looking for smoothbore sidedraft carbs
possibly fat bob tanks
modified vn800 or sportster drag pipes or I'll just make some