Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: thomaspigeon on February 02, 2021, 09:33:18 PM

Title: Rubber manifold K3 & 069A
Post by: thomaspigeon on February 02, 2021, 09:33:18 PM

Hi everyone,

I tried to look for this answer everywhere but it seems I can find a straight answer, I have a 550 k3 with 069A carbs. The rubbers for the manifold are the K3’s one which means the carbs don’t seat against the rubber (I have a gap of a few mm).

Now that could create  some vacuum issues. The carbs has 2 grooves and my rubbers only 1.

If I buy a manifold rubber for a F1 would that work?

I’ve seen that the intake manifold got 2 grooves while mine has only one so I’m not sure if that would work.

Title: Re: Rubber manifold K3 & 069A
Post by: Bryanj on February 02, 2021, 11:58:59 PM

Fit 500 or early 550K/550F manifolds and rubbers, that should all fit properly, manifold O rings to head are same as tappet cap ones

Title: Re: Rubber manifold K3 & 069A
Post by: Trigger on February 03, 2021, 09:08:19 AM

To fit 069A carbs to a K3, you will need the 500/550F type manifolds and the rubbers  ;)

Title: Re: Rubber manifold K3 & 069A
Post by: thomaspigeon on February 04, 2021, 12:36:22 AM

Brilliant! Thanks everyone!