Topic: 1975 honda cb 550 four choke question?

[JACKOCASTER75CB550K]

Ive had other newer cb motorcycles in the past and when you applied the choke from cold it would raise the rpm high until warm and then I would shut it off..This one is does not do that The choke is functioning but I have to move the lever up to find the sweet spot and gradually lower upon warming engine..Is this normal due to the bikes age and setup or am I missing some kind of choke adjustment?

[sniper1]

From TT:

"The choke on the 022A carb has no fast idle cam linked to it, like the PD carbs do.  Choke, therefore does not advance RPM for you.  You have to do that with the twist grip during warm up.  If you are using D7EA heat range plugs you do not need a stationary warm up.  You can drive with the choke partially on and gradually take it off during the warm up period.
The choke restricts incoming air and forces the jets to produce more fuel in ratio.  This tends to lower RPM from the natural free breathing state."

[JACKOCASTER75CB550K]

You summed it right up for me Thanks much TT I really appreciate it I thought I was missing something or there was a prob..Even a Honda shop mechanic couldnt explain that..

[Tews19]

I would bet that 99% of mechanics in WI have no clue bout the CB's.....  unless you find an older mechanic who has actually worked on one which is just as rare......

Although there is one mechanic I literally met this AM...... He is at Don and Roys in Brookfield.

[sniper1]

Good to see some fellow Cheeseheads here. I grew up in Sun Prairie, just outside of Madison. Left in 87 for Marine Corps, get back at least once a year to visit.

Go Pack!