YAMAKATO Ignition Coil Kit for Kawasaki FR651V/FR691V — 2-Coil Set with Spark Plugs & Mounting Bands

YAMAKATO 21171-0743 is a direct-fit ignition coil replacement kit designed to restore spark and reliable starting on select Kawasaki V-twin engines used in lawn tractors and zero-turn mowers.

If your mower's engine is misfiring, has intermittent starting, or shows weak spark, swapping in compatible ignition coils can often resolve those symptoms. This YAMAKATO kit ships as a 2-coil set with spark plugs and mounting bands to support models that use the 21171-0743 coil spec. It’s built to match OEM mounting and electrical connections for an easier installation without modifying the mower.

Which engines and mower models will this coil fit?

This coil is engineered for a wide range of Kawasaki FR/FX/FS series small V-twin engines and several mower lines that use the 21171-0743 part number. Verify the part number on your original coil before ordering.

• Covers Kawasaki FR541V, FR600V, FR651V, FR691V, FR730V, FX730V, FX751V, FX801V, FX850V and related V-twin models.
• Compatible with select John Deere X300/X530, Cub Cadet LTX1050, and Toro ZTRs that specify 21171-0743.
• Note: Not compatible with Kawasaki 21171-7034 type; compare the coil shape and connector to your current unit.

How does installation and electrical fitment work?

The YAMAKATO coil is manufactured to OEM mounting dimensions and connector types so it plugs into existing harnesses and uses the same bolt points. Installation is straightforward for a basic home mechanic with standard hand tools.

• Direct-replacement mounting holes and plug orientation for easy bolt-on installation.
• Standard flywheel magneto configuration — no rewiring required when matching part numbers.
• Includes bands and spark plugs to complete the basic ignition refresh during replacement.

What do I get in the package and what quality standards apply?

The kit includes two ignition coils plus two spark plugs and four mounting bands, providing enough components for dual-coil V-twin installations or a spare. YAMAKATO markets these as 3A-quality parts produced by experienced manufacturers to meet typical performance and fit expectations.

• Package contents: 2 ignition coils, 2 spark plugs, 4 mounting bands.
• Manufactured to match OEM dimensions and connector types for the listed Kawasaki part numbers.
• Intended for replacement, maintenance, and small-engine repair use; built by suppliers familiar with OEM production standards.

Will this fix hard-starting, misfire, or rough idle issues?

Replacing a failing coil often cures weak spark-related problems like hard starts, rough idle, or sudden loss of power, provided the root cause is the coil. Always rule out fuel, compression, and wiring issues first.

• Best for engines with confirmed weak or no spark from the affected cylinder(s).
• Not a guaranteed fix if the problem is fuel delivery, ignition module, or mechanical compression-related.
• Use a spark tester to confirm coil output before and after replacement for diagnostics.

Who is this for: This YAMAKATO 21171-0743 coil kit is suited to homeowners and professional landscapers who maintain Kawasaki-equipped lawn tractors and zero-turn mowers, plus technicians servicing John Deere, Cub Cadet, or Toro machines that list the 21171-0743 part number. Choose this kit if you need an OEM-compatible coil replacement with extra spark plugs and mounting bands to complete a clean, same-day ignition repair.