FIR CARBURETTOR JET 550 BRASS MIKUNI4/042

Brass Main Jet MIKUNI 4/042 [Sold Each] 6mm HEX, VM TM TMX Carb 450 - 500 Mikuni VM carburetors Mikuni TM carburetors Mikuni TMX carburetors FIR [FACTORY IMAGE RACING]   Fit Mikuni carburetors VM18 (clamp on), VM24-512, VM26-512, VM26-606, TMX Series and others that originally came with 4/042 main jets. Also fit several OE applications; check dimensions before ordering. OVERALL LENGTH = 11.5mm THREAD DIAMETER = 5.2mm THREAD PITCH = 5.25 x 0.9