Cb360 jetting

J

Joshcb360t

New Member
On my 75 cb360t I have screaming eagle mufflers on it. I was wondering what size jets I would need if I were to run open pipes?
Your suggestions will be very helpful.
 
None of the stock 360 carbs work well with pods until they get some modification.
Exhaust is less of an issue unless you run just the head pipes as too short also causes issues
 
Potentially, and I'm not saying this is me. Actually, it's a friend of mine. he's got a '75 CL360 with VM30's and exhaust chopped at the mufflers. Yay, nay or somewhere in between?
 
VM30'sare much easier to tune but all the CB/CL/CJ's like longer pipes.
Somewhere just behind passenger footrests works best.
You know when length is right as it gets a LOT louder and faster around 7K
 
i just put emgo shorty reverse cone megaphones on my 74 cb360, and am wondering if I should restrict the airflow a bit in the mufflers. I also want to make it quieter, so was thinking of using the emgo pipe reducers/silencers plus real exhaust packing. Any advice?
 
I have a '75 that's been converted to a racer. The first version had stock pipes and Emgo filters. A local tuner (here in Denver) sync'd them (stock jets) and the bike ran good but wouldn't pull in 6th gear. He offered to do the sync again but I decided to pull the entire bike apart for a full rework

The newer version of the bike has Uni filters and a vintage 2-into-1 header that ends at the rear wheel axle. I packed the silencer with fiberglass, so it should have decent back pressure.

So... where should I start as far as jet size and needle position? Keep in mind the lower air density here in the "Mile High" city.
 
Stock carbs? Start at 115 and go from there. The differences between the steps in the Keihins seems to be pretty steep.
 
110 or smaller, I only use 112 in my 378 motor
Most of Florida is about 50 ft above sea level ;D
 
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