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Marine & Outboard Spark Plugs

NGK Nickel Spark Plug LKR6E (92650)

SKU: GB-LKR6E

$23.25
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The NGK LKR6E (Stock No. 6962) is a long-reach resistor spark plug used in selected Yamaha four-stroke outboards, particularly later F75 and F90 engine families. Featuring a nickel centre electrode, copper-core construction and projected firing end, it provides dependable ignition and efficient heat transfer. Its M12 × 1.25 thread, 26.5 mm reach, 16 mm hex and NGK heat range 6 suit specific Yamaha four-cylinder marine engines.

Key benefits

Key Benefits

  • - NGK Stock Number: 6962
  • - Nickel centre electrode
  • - Copper-core construction
  • - Built-in resistor
  • - Projected firing end
  • - Long-reach marine plug
  • - M12 × 1.25 thread
  • - 26.5 mm / 1.043" reach
  • - 16 mm / 5/8" hex
  • - NGK heat range 6
  • - Flat/gasket seat
  • - Suitable for selected Yamaha four-stroke outboards

Specifications & Dimensions

  • - Brand: NGK
  • - Part Number: LKR6E
  • - NGK Stock Number: 6962
  • - Type: Standard resistor spark plug
  • - Thread Diameter: 12 mm / 0.472"
  • - Thread Size: M12 × 1.25
  • - Thread Reach: 26.5 mm / 1.043"
  • - Hex / Spanner Size: 16 mm / 5/8"
  • - NGK Heat Range: 6
  • - Seat Type: Flat / gasket
  • - Resistor: Yes
  • - Centre Electrode: Nickel
  • - Centre Electrode Core: Copper
  • - Firing End: Projected
  • - Ground Electrodes: 1
  • - Sealing Washer: Yes

Compatible Outboard Motors

  • Yamaha F75 Four-Stroke
  • - Yamaha F75B

Yamaha F90 Four-Stroke

  • - Yamaha F90B

Signs the Spark Plug Needs Replacing

  • - Difficult starting
  • - Rough or unstable idle
  • - Engine misfire
  • - Hesitation under acceleration
  • - Reduced engine power
  • - Poor high-RPM performance
  • - Increased fuel consumption
  • - Carbon deposits
  • - Fuel or oil fouling
  • - Excessive electrode wear
  • - Enlarged electrode gap
  • - Corrosion
  • - Cracked ceramic insulator
  • - Damaged sealing washer

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