I recently bought a 2001 Honda CB600S, with 35000km on it. Unfortunately fuel consumption has been terrible, and I drive roughly 1 liter per 12km. When taking it to a specialist in carburateurs, he noticed the hole which the jet needle (long pointy needle which can move, part 16012-MBZ-610) is supposed to block/regulate was worn out. Apparently in Hondas those holes are not replaceable, while in other brands there's a separate part there which you can just screw out and replace.
Now this did get me confused. From what I understand, the jet needle slides in and out of the needle jet (discontinued but available at chinese quality and price, part 16156-MBZ-610). But looking at the " Carburetor (component parts)" diagram, and looking at youtube videos, the neele jet and jet needle seem to be at a roughly 45 degrees angle of one another.
- Does the jet needle slide into the needle jet? If not, what is the name of the hole it does slide into?
- Can the needle jet be screwed out and replaced with a chinese quality one, or is it indeed "crimped"/slammed into place?
- Does the kit linked down below (image attached) indeed include the needle jet?
I know I should not expect aftermarket products in a carb to deliver peak performance or efficiency, but would hope better efficiency than worn-to-the-bone OEM parts.
Repair kit I'm looking at: 4 Sets For HONDA CB600F Hornet PC34 1998-1999 CB 600F CB600 F PC 34 Float Needle Seat Parts Carburetor Rebuild Repair Kits https://aliexpress.com/item/1005005518495478.html