mtrparts PZ19 carburetor for 50–125cc ATVs & pit bikes — complete direct-fit kit with filters

The mtrparts PZ19 carburetor is a direct-fit replacement carburetor kit engineered for small-displacement 4-stroke engines from 50cc to 125cc, restoring reliable throttle response and fuel delivery on ATVs, pit bikes and go-karts.

Whether you’re maintaining a TaoTao, Kazuma, Coolster or other Chinese-made ATV, dirt bike or horizontal-engine go-kart, a clean, properly sized carburetor is essential. This PZ19 assembly arrives as a complete kit with the parts needed for installation and basic tune-up, offering a cost-effective way to revive performance without complex modifications.

Will this PZ19 carburetor fit my 70cc or 110cc engine?

This carburetor is compatible with a broad range of 50cc–125cc single-cylinder 4-stroke horizontal engines commonly used in Chinese-brand ATVs, dirt bikes and go-karts. Fitment depends on intake manifold diameter and throttle/cable orientation, so compare mounts and hose sizes before purchase.

• Designed for 50cc, 70cc, 80cc, 90cc, 110cc and 125cc 4-stroke engines
• Commonly used on TaoTao, Kazuma, Baja, Coolster and similar machines
• Works with many horizontal-engine go-karts and pit bikes
• Check manifold and throttle linkage for direct-fit confirmation

What comes in the carburetor kit and what tools will I need?

The mtrparts PZ19 kit ships with the carburetor plus essential installation and maintenance components so you can install and service it right away. Basic hand tools and a clean workspace are sufficient for most installations.

• Included: carburetor, fuel hose, two clamps, two fuel filters, repair kit paper pads, air filter, spark plug
• Extra: basic screwdrivers, pliers, socket set, and carb cleaner for prep
• Suggested: replacement gaskets or manifold clamps if existing hardware is worn
• Customer support available if you encounter installation issues

How does this carburetor affect engine performance and maintenance?

Replacing a worn or clogged carburetor can noticeably improve starting consistency, throttle response and overall fuel delivery, especially on machines that have sat idle or show hesitation. Regular inspection and cleaning of filters and jets will keep it operating smoothly.

• Restores steady idle and crisper throttle transitions
• Includes filters and repair pads for routine upkeep
• Easy to clean jets and accessible float bowl for maintenance
• Periodic filter replacement prevents fuel contamination problems

How difficult is installation for a home mechanic?

Most mechanically inclined owners can install this carburetor without professional help; tasks include swapping fuel lines, mounting to the manifold and adjusting the idle/air-fuel mixture. If a model-specific bracket or adapter is required, you may need minor fabrication or a replacement manifold boot.

• Typical install time: 30–90 minutes for a competent DIYer
• Requires disconnection of fuel and throttle linkages and re-jetting in some cases
• Follow engine model recommendations for idle and mixture settings
• Contact seller support for troubleshooting during installation

Who is this for? If you own a small-displacement ATV, pit bike or go-kart with a 4-stroke horizontal engine and you need a budget-friendly, ready-to-install carburetor kit, the mtrparts PZ19 is tailored for routine repairs, rebuilds and performance refreshes. It’s an economical option for riders, hobbyists and fleet owners who want straightforward replacement parts that include the basic consumables and repair items needed to get back on the trail or track.