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Author Topic: CB 550 is starving at full throttle  (Read 673 times)

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Offline Kudu

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CB 550 is starving at full throttle
« on: August 02, 2016, 09:48:24 AM »
Hi guys I hope someone can help
I have a newly rebuild CB 550 k3
With all checks and specs done by the book
Here is my problem the bike struggles to do over 60 mph
Unless I pull the choke then  she goes like a rocket and if I close the choke
Loss of power and it feels like the bike is starving of fuel .
With start up I pull the choke for a little bit then close it again and she idles well the bike doesn't struggle to start at all
any help  or ideas
would be great
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Offline flybox1

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Re: CB 550 is starving at full throttle
« Reply #1 on: August 02, 2016, 09:51:34 AM »
Delete this thread as you already have one started with  the same title, topic, and it already has comments.
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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
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline Kudu

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Re: CB 550 is starving at full throttle
« Reply #2 on: August 02, 2016, 10:08:55 AM »
How ?? I'm a bit bc
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