Spark Plug (Z50)

NGK nickel spark plugs feature a specially designed v-groove center electrode, improving ignitability and reducing quenching. The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating.

• Cold-rolled threads prevent cross-threading and damage to cylinder heads
• Trivalent plating eliminates need for anti-seize
• High-grade alumina silicate ceramic

CR6HSA - Honda 50 Z50 - 1971-1986 Monkey

CR5HSA - Honda 50 Z50 - 11/2007 - 02/2009 Monkey

Difference between Nickel & Iridium Spark Plugs

Nickel

• Centre Nickel electrode
• Nickle ground electrode
• Service Life of around 20,000 - 40,000km
• Standard style spark plug 

Iridium IX

• Centre Iridium Tip
• Nickel ground electrode
• Service Life of around 60,000km
• Long service life and even better ignitability due to a small diameter centre electrode