

Adjust plug gap from factory specification (.044") approximately. Spark Plug Application Chart for Evinrude & Johnson Outboards. We recommend inspection / replacement at 30k miles. The primary benefit of this plug is is thermal resistance making it ideal for high horsepower supercharged or turbocharged applications which experience high cylinder temperatures. Iridium plugs offer increased electrical efficiency with a narrower iridium type electrode. Iridium IX - For forced induction (supercharged/turbocharged), we recommend the Iridium IX.View NGK SPARK PLUG CO org chart to access information on key employees and get. For example: an application adding 150 bhp would require a. NGK SPARK PLUG CO., LTD., headquartered in Nagoya, Japan, is a ceramics. Adjust plug gap from factory specification (.044") approximately. NGK spark plugs are original equipment on many outboard motors and are excellent replacements for everyday engine maintenance. NGK spark plugs are original equipment on many outboard motors and are excellent replacements for everyday engine maintenance. This plug is not recommended for a "daily driven street car" application where the engine is not at constant high RPM use due to plug fouling that may occur. Buy products such as NGK SPARK PLUG, NGK Ruthenium HX Spark Plug, NGK IZFR5K-11 Laser Iridium Spark Plug at Walmart and. We recommend this plug for use in NSX used on the track. This plug is recommended for engines producing high cylinder temperatures due to extended high RPM and wide open throttle use. ScienceofSpeed also offers the NSX-R spec spark plug which uses a one step colder heat range of 7 (for 1991-94 NSX only). This is the plug we recommend for 99% of our customers. Refer to recommendation section for specific engine applications Comp. Honda recommends replacement every 60k miles or sooner. and material, plugs produced by various manufacturers do not have exactly the same heat range. Laser Platinum - these are the factory specified plug.Set (8pcs) Autolite Platinum Core Spark Plugs Resistor Tapered Seat 14mm x 1.25 Thread AP26.

NGK (6630) UR4 V-Power Spark Plug, Pack of 1, One Size. NGK 6630 V-Power Spark Plug - UR4, 4 Pack. Using the incorrect spark plug can lead to misfires, and/or engine damage. Replacement spark plugs for NGK UR4 on Amazon. The numbering system can even vary from one brand to another. Image Racing Spark Plugs 8mm Spark Plugs 3/4. The factory spark plug for the standard NSX is the Laser Platinum No. Spark plug manufacturers use a heat range numbering system that is not universal, meaning that a 10-heat range in Champion may not be the same as a 10-heat range in NGK or Autolite. NGK Spark Plug Specification Chart 44 NGK Racing NGK Standard Part No. ScienceofSpeed offers the same spark plug with out the dealer premium price. If you do not see the Spark Plug you need, please complete the Lawn Mower Parts Request Form and we will be happy to assist you.NGK is an original equipment manufacture for the NSX spark plugs. We carry a large selection of Small Engine Spark Plugs ready to ship direct to your door.
