Rebuild it, or replace it?
Worth deciding before any parts are bought. Wear between the slide and the bore is what a set of jets cannot cure: if the slide rattles in the body with the engine stopped, new jetting will only make the fault harder to read. Check the slide against the bore and the needle against its seat first. A body that is worn out costs less to replace once than to tune around for a season.
Jet sizes and what moves them
Standard jetting assumes a standard engine breathing through a standard filter and exhaust. Change either and the carburettor has to follow, which is why much of this stock is individual jets rather than boxed kits. Say what is fitted and we can tell you what sizes are here.
What this group covers
- Amal: Monobloc and Concentric bodies, slides, jets and repair parts
- Jikov: components for Jawa and CZ machines
- Service items: floats, needles, needle jets, gaskets and seals
- Fittings: manifolds, spacers, cable and air fittings
Where a part suits more than one carburettor size the listing says which, and where a figure is stamped on the component we quote it, so you can compare it with what came off the bike.