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.016 Feeler Gauge - 12 Inch Long
.016" Feeler Gauge used for setting ignition coil gap
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.016 Feeler Gauge - 12 Inch Long

Part Number: FGR-016
Online Price: $3.95
12-Inch .016" Feeler Gauge for Ignition Coil Gap – Fits Predator 212, GX200, Clone, Tillotson, Ducar Engines
Availability: Out of Stock.

Description

12-Inch .016" Feeler Gauge for Ignition Coil Gap – Precision Tool for Small Engine Tuning


Quickly and accurately set your ignition coil gap with our 12-inch long .016" feeler gauge, designed specifically for small engines. The extended length allows for easy alignment of both coil legs, ensuring consistent ignition performance across a wide range of engine types.


.016" is the recommended coil gap for engines using stock flywheels, which have weaker magnets compared to billet flywheels. Setting the coil too far can reduce spark efficiency, while a precise .016" gap helps maximize ignition strength and starting reliability.


Key Features:

  • Precision Thickness: .016" – the ideal gap for most stock small engine flywheels
  • Extended 12-Inch Length: Easily reaches and aligns both ignition coil legs
  • Flexible Steel Construction: Durable yet easy to maneuver around tight engine spaces
  • Essential Tool for Builders & Tuners: Ensures accurate coil setup on the first try


Compatibility:

Ideal for engines using stock (non-billet) flywheels, including:

  • Predator 212 (Hemi & Non-Hemi)
  • Honda GX200
  • 196cc Clone Engines
  • Tillotson 196R, 212R, and 225RS
  • Ducar 196, 212, 224
  • Wildcat 223 / 240
  • V-Twin and Big Block Engines with Stock Flywheels


Why Choose Our Feeler Gauge?

A standard short gauge can be tricky to align properly. Our 12-inch version makes the job easier and faster—especially when adjusting dual-leg ignition coils. It's a must-have for builders, racers, and DIY small engine enthusiasts.

FAQ

Q: Why is the .016" thickness important for coil gaps?
A: Stock flywheels have weaker magnets than billet ones, so they require the ignition coil to be set closer (.016”) to generate proper spark. A precise gap improves starting and ignition performance.


Q: Will this gauge work with aftermarket billet flywheels?
A: Not ideally. Billet flywheels usually recommend a wider coil gap, such as .035”-.050. This tool is best suited for stock flywheel setups.


Q: Which engines is this gauge compatible with?
A: This gauge fits most small-block engines running stock flywheels, including:

  • Predator 212 (Hemi and Non-Hemi)
  • Honda GX200
  • 196cc Clones
  • Tillotson 196R / 212R / 225RS
  • Ducar 196 / 212 / 224
  • Wildcat 223 / 240
  • Some big block and V-Twin engines


Q: How do I use the feeler gauge to set the coil gap?
A: Insert the feeler gauge between the coil and the flywheel magnet. Loosen the coil bolts, align it with the gauge inserted, then tighten bolts to secure. Remove the gauge once set.


Q: Why is the 12-inch length helpful?
A: The extended length lets you align both legs of the ignition coil at once for a consistent and level setup—especially useful in tight engine compartments or with dual-leg coils.

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