Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: pastitpete on April 23, 2023, 08:33:23 PM

Title: Which notch on the needle
Post by: pastitpete on April 23, 2023, 08:33:23 PM

Sorry for being a dufuss but the manual says 3rd notch on the needle in the carbs, but is that third from the top or third from the bottom ??? ???

Title: Re: Which notch on the needle
Post by: K2-K6 on April 23, 2023, 08:40:02 PM

They are usually in a set of five, with centre notch being #3 whichever way they're counted.

Title: Re: Which notch on the needle
Post by: pastitpete on April 23, 2023, 08:49:06 PM

I bought a set of aftermarket carb referb kits and the needles have 4 notches :-[, going to drop the needle by one notch as it's clearly running to rich. Guess we'll see if that works! I have also ordered a set of referb kit's from David Silver, so I might even change the needles over to these as they will probably be closer to OEM spec. Thanks for answering
Pete

Title: Re: Which notch on the needle
Post by: K2-K6 on April 23, 2023, 09:16:37 PM

Agree, its a suck it and see situation.

At least it should give you a new reference from which you can work and form more experience, then to judge if it's effective.

Welcome to the forum too  :)

Title: Re: Which notch on the needle
Post by: Bryanj on April 23, 2023, 09:18:09 PM

All the aftermarket needles are reported as being tapered different from oe

Title: Re: Which notch on the needle
Post by: Nurse Julie on April 23, 2023, 10:14:04 PM

Clean up and use the OEM brassware. Aftermarket brassware is notorious for being pretty rubbish.

Title: Re: Which notch on the needle
Post by: McCabe-Thiele (Ted) on April 23, 2023, 10:20:06 PM

I've sent you a PM. Ted

Title: Re: Which notch on the needle
Post by: Oddjob on April 25, 2023, 11:48:47 PM

Needle slots are numbered from the top down, so No1 is the very first or top slot.  Any reference to a slot is not how many from the top or bottom but the actual slot number, unless of course they do stipulate 3rd from the top etc. If they just say slot 2 then it would also be second from the top.