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Author Topic: cb550 carb settings  (Read 614 times)

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JWM

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cb550 carb settings
« on: April 16, 2010, 10:12:14 am »
just rebuilt a 75 cb550. tore apart carbs and rebuilt with new carb kit.  (needle/jets/ the lot)


was wondering what the mixture screws should be set at.   it has a slight back fire from the #1 cyl.   

TIA
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Offline flybox1

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Re: cb550 carb settings
« Reply #1 on: April 16, 2010, 11:26:03 am »
1 turn out is stock.  Fine tune from there....
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
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Offline TwoTired

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Re: cb550 carb settings
« Reply #2 on: April 16, 2010, 11:57:22 am »
Stock settings for all the 550 carbs can be found in the Carb FAQ.
They are the stock settings and assume the stock air filter and exhaust for the bike/model is still being used.
Otherwise, they are adjust to where the bike works the best.

Book value is 1 1/2 turn out from lightly seated.

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Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.
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