
This part being universal, it may require adaptations
MIKUNI MKA420 JET — original part by MIKUNI, manufacturer reference 4/042-420. This jet is intended for motorcyclists and mechanics who work on carburation: replacement, adjustment, or maintenance of the main circuit of the carburetor.
The jet plays a central role in managing the air/fuel mixture at the main circuit. Installing the correct jet allows for adjusting the engine's richness to achieve a more consistent response at the throttle, better mid-range acceleration, or a stable idle depending on the size used. This MKA420 is designed to be integrated into compatible Mikuni carburetors.
Practical tips: work cleanly and replace the jet as soon as the old one shows signs of wear or clogging. Clean the jet well, check the filters, and perform a road test after adjustment. Always check compatibility with your carburetor and note the size being replaced before proceeding.