MIKUNI FN100606-137.5 Low Speed Jet - High-Performance Intake System for Powersports

Description

Upgrade your powersports engine's performance with MIKUNI's FN100606-137.5 Low Speed Jet. This precision-crafted component ensures accurate fuel metering for smoother operation and enhanced power output across a range of riding conditions.

Key Features

  • High-Flow Design: Optimized fuel flow rates for improved throttle response and consistent power delivery.
  • Durable Construction: Precision-machined brass for long-lasting performance in harsh environments.
  • Easy Installation: Compatible with standard carburetor setups for quick integration.
  • Adjustable Jetting: Fine-tune fuel delivery for specific engine modifications or fuel blends.

Why Choose This Product

MIKUNI's Low Speed Jet delivers reliable fuel metering for both stock and modified engines. Its corrosion-resistant materials ensure consistent performance in extreme weather, while the adjustable jetting allows riders to customize fuel delivery for peak efficiency. Perfect for ATVs, UTVs, and other powersports vehicles requiring precise fuel control.

SKU: GM009EBAFB
MPN: FN100606-137.5
Brand: MIKUNI
Stock: Only 2 left!
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Upgrade your powersports engine's performance with MIKUNI's FN100606-137.5 Low Speed Jet. This precision-crafted component ensures accurate fuel metering for smoother operation and enhanced power output across a range of riding conditions.

Key Features

  • High-Flow Design: Optimized fuel flow rates for improved throttle response and consistent power delivery.
  • Durable Construction: Precision-machined brass for long-lasting performance in harsh environments.
  • Easy Installation: Compatible with standard carburetor setups for quick integration.
  • Adjustable Jetting: Fine-tune fuel delivery for specific engine modifications or fuel blends.

Why Choose This Product

MIKUNI's Low Speed Jet delivers reliable fuel metering for both stock and modified engines. Its corrosion-resistant materials ensure consistent performance in extreme weather, while the adjustable jetting allows riders to customize fuel delivery for peak efficiency. Perfect for ATVs, UTVs, and other powersports vehicles requiring precise fuel control.

SKU GM009EBAFB
MPN FN100606-137.5
Brand MIKUNI
Category Intake/Carb/Fuel System
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Frequently Asked Questions

The low speed (pilot) jet controls the fuel-air mixture at idle and low throttle positions. It affects idle quality, throttle response, and low-speed running characteristics.

If your engine runs too lean (hesitates, pops on decel) or too rich (black smoke, fouled plugs) at idle/low speeds, you may need to adjust jet size. Larger numbers = richer mixture.

This is a specific size (137.5) and must match your carburetor model. Verify your carburetor type and current jet size before ordering.

Yes, jet replacement is a basic maintenance task. You may need to remove the carburetor from the engine depending on your setup.

Low speed jets control idle and low throttle mixture. High speed jets control full throttle mixture. Both may need adjustment for optimal performance.

Installation Guide

Difficulty Easy
Est. Time 15 min

Tools Required

  • Small screwdriver set
  • Carburetor removal tools (if replacing in-situ)
  • Clean workspace
  • Small parts container

Pro Tips

  • Keep jets organized by size when tuning
  • Clean jet passages with carburetor cleaner before installation
  • Use a small magnetic tray to prevent losing small components
  • Document original jet size before making changes
  • Test run after installation to verify idle quality

Common Mistakes to Avoid

  • Losing the small jet during removal
  • Cross-threading the jet when reinstalling
  • Not cleaning the jet passage before installation
  • Installing without draining carburetor fuel first

Durability & Warranty

Expected Lifespan Indefinite if not damaged; jets are wear-resistant brass components
Maintenance No maintenance required; replace if damaged or for tuning purposes

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