NGK LFR6A Spark Plug for Yamaha 1.8/1.9L HO Engines is known for its long-lasting performance and trusted reliability. This NGK Spark Plug feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.

Key Features:

Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
Corrugated ribs prevent flashover
Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
Copper core aids in heat removal
Triple seals prevent leakage
Shell Dimensions:

Tread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .035" (0.9mm)