YOXUFA PZ19 19mm Carburetor Kit for 50–125cc Pit Bikes and ATVs — 7/8" Throttle, Hand Choke, Complete Install Kit

The YOXUFA PZ19 is a 19mm replacement carburetor kit with a 7/8" throttle assembly designed to fit many 50cc–125cc Chinese 4‑stroke pit bikes, ATVs and quads.

This compact carburetor package includes the hand‑choke carb body, a throttle housing and cable, red air and fuel filters, fuel line and filters, clamps, gaskets and a 7/8" (22 mm) throttle grip so you get a ready‑to‑install replacement for common TaoTao, Apollo, Coolster and similar machines. The internal bore measures 19 mm while the air‑side fits typical 35 mm filters, making it appropriate for small four‑stroke engines that need a reliable, serviceable carb swap.

Will this PZ19 carburetor fit my 110cc or 125cc four‑stroke pit bike?

Most 50cc–125cc Chinese four‑stroke mini bikes and quads use similar intake diameters and a 7/8" throttle setup, so this YOXUFA PZ19 is compatible with many popular models. Confirm the intake boot diameter and throttle cable type on your machine before ordering.

• Internal bore: 19 mm (PZ19 standard)
• Air filter side outer diameter: 32 mm; filter diameter: 35 mm
• Throttle grip: 22 mm (7/8"), throttle cable length: 127 cm (50")
• Hand‑choke style; ensure choke method matches your bike

How easy is installation and what hardware is included?

The kit arrives with the main carburetor body and all common install components for a straightforward replacement. Basic mechanical experience and simple tools are sufficient for most hobbyists to complete the swap in an afternoon.

• Included parts: carburetor, air filter (red), fuel line and two fuel filters (red)
• Hardware: four clamps, gasket set, throttle housing, throttle cable and throttle grip
• Hand‑choke means no electric choke wiring is required
• Throttle cable pre‑measured at 127 cm for easy routing

What performance and maintenance considerations should I expect?

This PZ19 is a stock‑style replacement rather than a high‑performance tuner carb, so it restores or maintains factory fuel delivery characteristics for small four‑stroke engines. Periodic cleaning and tuning will keep it operating reliably.

• Factory‑style jetting suitable for stock engines — rejet if modifications are made
• Hand choke useful for cold starts without electrical components
• Replace fuel filter sections regularly to avoid clogs
• Inspect gaskets and clamps for air leaks after install

Who is this for? The YOXUFA PZ19 carburetor kit is aimed at riders and mechanics who maintain Chinese‑manufactured 50cc–125cc 4‑stroke pit bikes, quads and ATVs — especially owners of TaoTao, Apollo, Coolster, SSR, Baja and similar makes looking for a like‑for‑like carburetor replacement. It suits hobby mechanics wanting a complete install package with filters, clamps and throttle components included, and those who prefer a manual choke arrangement over electric systems. Before purchasing, verify intake diameters and throttle grip size on your vehicle to ensure fitment and smooth installation.