Topic: CB550 carb manifold O rings

[Eddie]

Anybody been able to change them with out removing air box and carbs ? Need to change mine as I can see tell tail signs..

[Bankerdanny]

if you unbolt the box and the carb-box rubbers are liable enough I suppose that you could move the whole assembly back an inch or so and get sufficient room to remove the o-rings.

But can you get to the lower manifold bolts with the carbs on the bike?

It's worth a try. Worst case is you have to pull the airbox to get enough room to move the carbs back.

[Duanob]

Just remove the venturi rubbers and nuts holding the carbs on and you should be able to pull the intakes away from the head by an inch. Getting old o-rings out is the hardest part. Maybe a dental pick or some similar tool. Once you can do that putting new ones back in is a cinch.

[NShahdadi]

I'm in the same situation.
Let me know if you have any luck. I've been thinking about trying the same thing. It'd be nice to have a consistent idle...

[Eddie]

sounds like it's worth a try. I'll post my findings..

[phil71]

Not for nothing, you'd be crazy to do the o-rings and not verify that the carbs are spic&span.  bite the bullet, do the whole job, or chase gremlins for weeks.

[Eddie]

already did the carbs... should have changed the O rings then. engine is pretty clean so after a very hot last summer you can see a little staining.

[phil71]

if you had a fine right angle pick tool, you might fish 'em out, but I suspect you're gonna need the airbox boots pushed back