hi,overhauling my carbs and have 3 hole emulsion/main jet holder tubes??I thought they were to be 4 hole front/5 hole rear??they are nc35 carbs on a nc30..bike runs sweet as,not a flat spot anywhere,117.5 on the rears,115 on the front.the jets have AB stamped on them,anyone know if these are keihen/dyno-jet.etc?..not sure whether to get the 4/5 hole tubes or leave well alone??cheers for any help..

If it is running fine, don't mess with it.

Stock NC35 carbs have 3-hole emulsion tubes, hole position is slightly different front & rear - standard main jets are 108 all round with the very restrictive OE silencer so 115/117.5 is OK with a free flowing race system.

`AB` jets are Keihin replicas made by A-BAX Precision Engineering which is a sister company of EBC Brakes.

Rick

Nice one Rick!

Like I said, leave it be. LOL.

cheers rick,that cleared up a lot for me mate thanks..yup,its running great so it will be left alone!!cheers for the replys chaps!!