Author Topic: Carb questions regarding airbox removal on a CB 550  (Read 6267 times)

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Offline Way Way norcal

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Re: Carb questions regarding airbox removal on a CB 550
« Reply #25 on: February 27, 2013, 11:53:49 AM »
I'd like to see that as well.  Numbers like that I would like to do what you did!!!   :)

Offline flybox1

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Re: Carb questions regarding airbox removal on a CB 550
« Reply #26 on: February 27, 2013, 12:03:14 PM »
your pipes definitely look like Jardines.   
I had similar ones on my 350F.  their mfr stamp woud be on the rear mount bracket.
i always dig the 35+ year of sun-fade paint jobs on these brown bikes  ;D
'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 freeze

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Re: Carb questions regarding airbox removal on a CB 550
« Reply #27 on: February 27, 2013, 04:57:26 PM »

"Cheap pods are just a waste of money and are more restrictive than stock airbox at high rpm"

Only half this statement is correct and that is cheap pods are a waste of money...
I have tried every manufacture of pods both expensive and cheap and NONE have been more restrictive than the stock airbox...
And this restiction (stock airbox) is how a simple, basic, non accelorater pump type carb works on these bikes.
Lets not forget, Honda was building an inexpensive, reliable, dependable motorcycle for the masses. and INMO did a pretty damn good job.
BTW, I too perfer K&N.

Offline BobbyR

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Re: Carb questions regarding airbox removal on a CB 550
« Reply #28 on: February 27, 2013, 05:07:50 PM »
Do people have success with pods, sure they do. If you take the time to tweak everything you may be successful. Some report that side winds cause some power loss probably due to dirty air killing the vacuum.  Honda went to the trouble of actually putting the air intake pointing backward where the air was quieter.

As far a cost I am sure that injection molded plastic box cost a lot more to make and mount than sheet metal funnels with some foam rubber over them.
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Offline crazypj

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Re: Carb questions regarding airbox removal on a CB 550
« Reply #29 on: February 27, 2013, 05:12:56 PM »

"Cheap pods are just a waste of money and are more restrictive than stock airbox at high rpm"

Only half this statement is correct and that is cheap pods are a waste of money...
I have tried every manufacture of pods both expensive and cheap and NONE have been more restrictive than the stock airbox...
And this restiction (stock airbox) is how a simple, basic, non accelorater pump type carb works on these bikes.
Lets not forget, Honda was building an inexpensive, reliable, dependable motorcycle for the masses. and INMO did a pretty damn good job.
BTW, I too perfer K&N.

 I've never seen a stock air filter collapse but I have seen cheap pods collapse, if you didn't put them on a flow bench, it's just an opinion. (and before you ask, yes I have but no longer have access to data)
Accelerator pump has nothing to do with air box design, SOHC CB750 used accelerator pump in 1977 due to emissions not re-designed air intake
As for air intake pointing backwards, it was the technology of the day, all modern sport bikes use 'ram air' forward facing intakes
« Last Edit: February 27, 2013, 05:19:24 PM by crazypj »
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Offline Way Way norcal

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Re: Carb questions regarding airbox removal on a CB 550
« Reply #30 on: March 28, 2013, 02:20:35 PM »
anyone spot anything else on this bike of mine of any particular interest??