Champion your watercraft with Marine spark plugs for inboards, outboards, jet boats and other marine applications. Another plug, the J2J, also finds a home with some 250 marine engines. Find the right spark plug for your engine with our parts selector at the top of the page. If there's a gasket, tighten an additional one-quarter turn; you'll feel the gasket squish as the plug snugs up tight. Some say spark plugs are gapped and ready to go out of the box. TABLE OF CONTENTS: HOW SPARK PLUGS OPERATE NGK PLUG IDENTIFICATION CHART; SPARK PLUG TIGHTENING TORQUE: GLOW PLUG IDENTIFICATION CHART; GLOW PLUG TIGHTENING TORQUE: SPARK PLUG TYPES . I saved $12 and bought the NGK's. Now here's something a little more interesting- The original engine owner's manual for my engine lists the NGK spark plug part#BUHW-2 as OEM required plugs. Get to know all about our new company name and what our future vision looks like: Data Security Information for Online Meetings (PDF). Inspecting your spark plugs relays essential information about your engines health and can help you address small problems before becoming big problems. The solid copper core offers superior NGK BR5HS Spark Plugs NGK Spark Plug Cross Reference Guide Due to the recent shortage of NGK spark plugs, this document identifies spark plugs from other manufacturers to use as a replacement. NGK Standard Spark Plugs are proven technology that offer reliable performance. NGK Outboard Motor Spark Plug Guide Table of Contents Outboard Motor Brand NGK spark plugs are original equipment on many outboard motors and are excellent replacements for everyday engine maintenance. Thanks to the longer nose, and the inherently longer fouling path, it takes longer to carbon foul a still cold engine. Insert new spark plugs, and hand tighten to ensure that you do not cross thread the plugs. While the ones intended for standard ignition are stepped from .025- to 0.45-thousandths of an inch. This item: NGK Spark Plug Stock # 1643. A spark plug must run cold enough at wide open throttle to avoid pre-ignition and hot enough at idle and low rpm to burn off the conductive deposits that would otherwise short-circuit the ignition pulse and misfire the engine. SALES - Order Online 24/7 When it is time to replace, we carry Mercruiser Spark Plugs from brands like Champion and NGK. For most Briggs and Styratton OHV engines. Reproduction of this publication, partial or total, is strictly prohibited without a prior written authorisation of NGK SPARK PLUG Europe GmbH. 2. A Fun Old Porcelain Sign and Ancient Tools Meet the MasterTech! Find all the parts and products you are looking for. ! and material, plugs produced by various manufacturers do not have exactly the same heat range. Ancient Tools, Meet the MasterTech! You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Without a doubt, pro-mechanics don't have to play the guess and by golly game do-it-yourselfers do. - NGK Spark Plugs HOW DO I "READ" A SPARK PLUG? Please view the inboard & outboard motor application guides below. The root causes of spark plug fouling or overheating must be corrected quickly to prevent engine performance deterioration and possibly severe engine damage. 6. Permatex - Dielectric Tune-Up Grease, 3 oz $ 12.07. . Spark plugs generate an arc of electricity across two leads which are not touching but close enough together that electricity can jump the gap between them. This article covers everything a boater performing standard spark plug maintenance needs to know, including how often plugs need to be changed, what to look for when inspecting your spark plugs, symptoms of fouled spark plugs, tools required to change them, and the steps required. NGK Standard Spark Plugs are proven technology that offer reliable performance. The spark plug Cross References are for general reference only. Privacy Policy | Terms & Conditions | Anti-Human Trafficking | Warranty The information, software, products, and services published on this web site may include inaccuracies or typographical errors. With copper, low-speed-fouling, the bane of the trolling fisherman, is reduced. These are the plugs you typically found in low-maintenance engines. Sold by FAR CREEK MARINA INC and ships from Amazon Fulfillment. Part# NGK STK # NGK # Comp. Tips on how to remove bottom plug on a 2007 150 two stroke mercury outboard NGK Standard Spark Plugs are proven technology that offer reliable performance. Consult a mechanic for guidance. - Get it Installed Buy in Store. Part# NGK STK # NGK # 44 3510 B6S 41-963 7740 PTR5C-13 45FFS 6222 BPR5HS 45 3210 B4 41-965 2467 PTR5A-13 45L 3112 B4L This chart is furnished as a guide. While there are some do-it-yourselfers who would disagree with this sage advice, few will deny that in spite of recent technological advances, spark plugs are still a weak link in the ignition system. Technically, gauging is the process of measuring spark plug gap while gapping is the process of bending the electrode wider or narrower to meet specification. The NGK LFR6A-11 Spark Plug What Should You Look for When Inspecting Your Spark Plugs? How Often Should You Change Your Marine Spark Plugs? We proudly endorse NGK quality and engineering. 3. 2023 MarineEngine.com, Inc. All rights reserved. The plug number is used to decode the spark plug and the stock number is used by our sales associates to aid in stock management, as alphanumeric numbers are harder to inventory. Water droplets, aluminum deposits, or whiteish electrodes are all signals that your engine is not operating optimally. Carefully remove the spark plug boots. The finale of this sermon is that spark plugs replaced at spring commissioning are cheap while get home under power insurance isn't. Use cross list as a guidance only. Shop, read reviews, or ask questions about NGK Spark Plugs at the official West Marine online store. Refer to your owners manual to see how many operating hours are recommended before replacing your spark plugs. English You may also find the NGK spark plug code helpful. Changes are periodically added to the information herein. Wondering 5. 3.