1988 POLARIS TRAIL BOSS 250 CARB CARBURETOR

Bring your ATV back to life with this high-quality replacement carburetor for the 1988 Polaris Trail Boss 250. Engineered to OEM specifications, this carburetor ensures proper fuel-air mixture for optimal combustion, efficient throttle response, and consistent engine performance. Whether you’re rebuilding a vintage Polaris or just replacing a worn-out unit, this carb is the perfect fit for your 2-stroke Trail Boss 250.

Made from durable materials and tested for off-road reliability, this carburetor is ready to handle tough trails, mud, and long rides. Installation is straightforward—no modifications required. Simply bolt it on, adjust your idle and fuel screws as needed, and you’re ready to ride.

Key Features:

• Fits: 1988 Polaris Trail Boss 250

• Direct OEM-style replacement

• Pre-jetted for stock engine setup

• Easy bolt-on installation with standard tools

• Restores lost power and throttle response

• Great for ATVs that are hard to start, bogging, or idling rough

Don’t let an old, clogged, or leaky carb slow down your ride. This replacement 1988 Polaris Trail Boss 250 carburetor delivers the performance, reliability, and simplicity you need to keep your quad running strong.

✅ Uses

The carburetor in the 1988 Polaris Trail Boss 250 plays a vital role in the engine’s fuel system by mixing air and fuel in the proper ratio for efficient combustion. Key uses include:

• Delivering the correct air-fuel mixture to the 2-stroke engine

• Regulating engine performance under different throttle conditions

• Improving cold starting, idling, and acceleration

• Replacing a clogged, damaged, or malfunctioning stock carburetor

• Ideal for routine maintenance, restorations, or performance upgrades on vintage Polaris Trail Boss 250 models

✅ Properties

• Fitment: Specifically designed for the 1988 Polaris Trail Boss 250 (2-stroke engine)

• Material Composition: Made from a mix of zinc alloy (main body), brass (jets and needles), and rubber gaskets/seals

• Pre-jetted: Typically configured to match OEM fuel settings for plug-and-play installation

• Idle & Air-Fuel Mixture Adjustments: Built-in screws for tuning engine response and idle quality

• Float Bowl Design: Ensures consistent fuel delivery even on rough terrain

• Corrosion-Resistant: Treated with anti-oxidation coatings to withstand fuel exposure and environmental wear

✅ Manufacturing Process

1. Design & Engineering:
   The carburetor is designed based on OEM Polaris specs using CAD software to ensure precise internal and external dimensions for compatibility with the 1988 Trail Boss 250 engine.

2. Die Casting the Carb Body:
   The main housing is made using high-pressure die casting of a zinc-aluminum alloy, ensuring durability and lightweight performance.

3. Machining & Drilling:
   Precision CNC machining is used to drill fuel and air passageways, ensuring accurate internal flow and consistent atomization of fuel.

4. Jet Installation:
   Brass jets, needles, and throttle slides are manufactured and installed to control fuel flow and adjust power across throttle ranges.

5. Assembly:
   All internal components—including the float, gaskets, needle valve, and choke assembly—are installed by hand or via automation in a clean manufacturing environment.

6. Surface Treatment:
   The entire carburetor is treated with anti-corrosion coatings and sometimes anodized to enhance longevity and fuel resistance.

7. Quality Control & Testing:
   Each unit undergoes leak testing, float level inspection, and air-fuel flow testing to ensure reliable performance right out of the box.