2x Vacuum Fuel Pump For Honda NH90 Yupy Lead 90 Bali SJ50 100 Shadow SRX 50 90 U

Vacuum Fuel Pump for Honda

This pair of vacuum fuel pumps uses engine vacuum pulses to deliver a steady supply of fuel to the carburetor.

Overview

This replacement vacuum fuel pump utilizes natural engine crankcase vacuum to maintain steady fuel flow. Installing this vacuum fuel pump ensures your scooter or small engine runs smoothly without leaning out at high speeds. It is designed for scooter owners looking to replace aged, cracked, or leaking fuel delivery components.

Built For Performance

• Includes two fuel pump units for backup or dual-line fuel setups.
• Durable metal body resists corrosion and withstands fuel exposure.
• Internal diaphragms are manufactured from high-grade elastomeric material.
• Standard barb fittings accommodate typical vacuum and fuel line sizes.

Fits These Machines

• for Honda NH90
• for Honda Yupy
• for Honda Lead 90
• for Honda Bali SJ50 100
• for Honda Shadow SRX 50 90

On-The-Job Use

• Restores consistent fuel delivery on two-stroke scooters.
• Replaces leaking vacuum pumps that cause engine fuel starvation.
• Provides consistent fuel pressure during long-distance riding.

Specs At A Glance

Good To Know

Q: How does a vacuum fuel pump operate? A: It uses changing air pressure within the engine crankcase to move an internal diaphragm back and forth, which draws fuel from the tank and pumps it to the carburetor without requiring electrical power.

Q: What are the signs of a failing vacuum pump? A: Common symptoms include difficulty starting, sputtering at high speeds, fuel leaking through the vacuum line, or a complete failure of fuel to reach the carburetor.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.