Description

Precise mid-range fuel mixture control directly impacts throttle response and drivability across the RPM band where you spend most of your time. The MIKUNI Jet Needle J8-6FJ40 is engineered for Mikuni VM carburetors and select OE applications, delivering the needle taper and diameter specifications necessary to dial in your air-fuel ratio without guesswork. When your engine feels flat or hesitates on acceleration, the right jet needle transforms performance with bolt-on simplicity.

Fitment: Mikuni VM models, OE Mikuni carburetors
MPN: J8-6FJ40
Function: Mid-range throttle mixture control
Material: High-precision machined steel
Origin: Made in Japan
Installation: Bolt-on replacement
Dimensions: Verify via Mikuni specification charts