Topic: 1978 Honda CB550K (PD46C) - Who went to pods and whats your setup?

[bayarea_averagejoe]

Hey everyone,

Location: Bay Area, CA

1978 Honda CB550K
Carburetor: Keihin PD46C
Carburetor Kit: (Randakks) CB550K - 1977-1978 - Repair with Jets (#90 Main)
4 - 1 Exhaust
Air Filter: Random Pods, I cannot find a stock airbox locally or anywhere else in general because it's not complete entirely nor do i have donor bikes locally. So Stock Airbox is not currently an option

Stock Airbox/Filter: Missing 100% + Too hard to find a complete airbox setup

Has anyone successfully found a good running Keihin PD46C Carbs setup (# Jets, etc) with pods or stacks + 4 -1 Exhaust that can be tuned and sync properly?

What is your parts list (including pod size and carbs parts list)?

[newday777]

Welcome aboard the forum from NH but currently riding across the country on my goldwing

That is a real tough one to get a good answer.
Have you read through this topic on running pods?

http://forums.sohc4.net/index.php/topic,182280.0.html

[scottly]

What are "Random Pods"? Are they something you have now, and are trying to tune for, or are you asking which pods are the best? If the latter, you want K&N oval pods.
Regarding the jets, are they genuine Heihin jets? #90 sounds small, is that the stock size for your model?

[bayarea_averagejoe]

Ya it’s what’s on the bike so unsure, I plan on wanting to just order new so I know what I have. K&N seem to be the go to.

#90 is what is factory stock for my model

I have heard 105-115 being good but nothing definite

I want to tune in the end of course I just want to make sure the carb is built correctly so I’m not having too much of an issue with tuning

[scottly]

Since 90s are stock, I think I would start with 98s or 100s. (Some of the earlier carbs came with 98s stock.) The stock jets have a stylized "K" mark like a four-pointed star on them.