With a full line of spark plugs, coils, and wire sets, NGK covers 95% of import and domestic vehicles on the market. Place your engine's throttle in the neutral position. /* script places appropriate kudos statement into page */ NGK Iridium IX Spark Plugs Check Latest Price. Taking the time to remove a marine engine's spark plugs and examining the firing surface and color of the deposit lends valuable clues as to the general state of affairs inside the combustion chamber. Privacy Policy and If the spark plug is still white, this could indicate it isnt firing. The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. Plugs have tell-tale signs that reveal clues as to how well your boats motor is functioning. Thank you for reading. NGK Standard Spark Plugs are proven technology that offer reliable performance. This information is disseminated in good faith, however MasterTech assumes NO LIABILITY whatsoever in regard to this service. MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone. But it might be helpful to cover a few of the essentials. Further, because so often the wrong plugs end up on a marine engine, it's a good idea to check the its numbers to see if the correct type is installed. For all different usage or post equipment, the responsibility of NGK cannot be engaged. First, you must buy marine-grade spark plugs, not automotive plugs. We carry a variety of NGK marine spark plugs to fit your outboard or inboard watercraft motor. Welcome to our Part Finder! ! NGK V-Power spark plugs are tested to the highest OE standards. NGK spark plugs are original equipment on many outboard motors and are excellent replacements for everyday engine maintenance. Champion spark plugs are original equipment on many outboard & inboard motors and are excellent replacements for everyday engine maintenance. Standard spark plugs are treated with corrosion-resistant plating to ensure ease of installation NGK YR55 V-Power Marine Spark Plug Please select your application and get all our suitable NGK and NTK parts ranging from spark plugs, glow plugs, ignition coils and leads, to oxygen sensors, air mass and intake manifold pressure sensors, speed & position sensors and EGR valves. there is a suitable spark plug in the NGK range. Wholesale Marine has a trusted foundation of customer service reps standing by to answer questions, guide you in the selection process, and finalize your purchase. . NGK Resistor Caps The property of the pictures, diagrams, drawings and other graphic elements and data belongs to NGK SPARK PLUG Europe GmbH exclusively. If you want to know how well your spark plugs are matched-up, remove and examine the plugs. In general, if an engine logs lots of hours trolling, and the plugs are black, it's a safe bet the plug isn't hot enough. Oops, something went wrong. Contact Us Online Message us any time. While the ones intended for standard ignition are stepped from .025- to 0.45-thousandths of an inch. Finally, the fuel octane might be too low for the engine, or the gas stale. NGK V-Power Marine Spark Plug #BP8H-N-10. Mercury Marine is well-known for manufacturing high-standard outboard motors. In addition, special oxygen sensors for inboard boats and outboard engines ensure high quality and reliability in seawater. Mercury Outboard Spark Plug Chart. You are invited to join our public Boat Repair Forum to seek assistance from other members. These are the plugs you typically found in low-maintenance engines. For example, those intended for electronic ignition have loops stepped from .040 to 0.80 thousandths of an inch. (click picture), ,