Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: bbrian66 on July 02, 2026, 08:46:07 PM

Title: 550 F2 Petcock
Post by: bbrian66 on July 02, 2026, 08:46:07 PM

Hi Guys. I'm looking for a little advice on petcocks for my 550 F2 project. It came work 2 tanks - one came off an F1, the other is unknown. It may be an F2 or may be from a K-series. Both fit the bike, but have very different mountings for the peacock. The F1 tank has an outlet about 18mm dia and has a twin outlet tap fitted  the other has no tap but the outlet is only about 15mm. Can anyone advise if this 15mm tank is correct for my bike?
Thanks!

Title: Re: 550 F2 Petcock
Post by: mickwinf on July 02, 2026, 09:55:11 PM

The 15mm taps are much easier to find, I needed the bigger size and really struggled to find one.

Title: Re: 550 F2 Petcock
Post by: Outrunner on July 03, 2026, 05:40:56 PM

These fit an F2 tank and are well made https://www.ebay.co.uk/itm/324769890348

Title: Re: 550 F2 Petcock
Post by: Sesman on July 03, 2026, 09:39:28 PM

Plus 1 on that solution. Mine is mighty fine.

Title: Re: 550 F2 Petcock
Post by: bbrian66 on July 04, 2026, 05:07:47 AM

Thanks Guys - that's really helpful to know!