Do not over or under tighten. Over the last few years, the company has introduced some superficial outboard motors, which are impressive in horsepower and torque. Another variation, the tapered seat plugs, the ones without a gasket, are tightened one sixteenth of a turn past hand tightening. 11 0 obj <> endobj 37 0 obj <>/Encrypt 12 0 R/Filter/FlateDecode/ID[<8EC06C7D21E64D978D23EB7C6BFBFA40><817B128E3C1B443BAFB54C14BF48AB3D>]/Index[11 52]/Info 10 0 R/Length 117/Prev 222916/Root 13 0 R/Size 63/Type/XRef/W[1 3 1]>>stream Your mechanic can offer you advice on what type of spark plug to buy to replace the damaged plug, but you may want to consider switching to a "hotter" spark plug (the higher the spark plug number, the hotter the plug). These . And always double check the gap before installation, dont rely on the factory for proper gap. It also conducts electricity better. Deposits caused by overheating with the electrode appearing lustrous and uneven. A Fun Old Porcelain Sign and Ancient Tools Meet the MasterTech! On the other end of the spectrum, if the engine logs most of its hours running at wide-open throttle, and the insulators are blistered, try a colder plug. Spark plug sockets are typically lined with a rubber shell that grips the insulator, holding it firmly, while lifting away from the cylinder head. Fouls plugs every time I try to start and has new wires and healthy spark. Here, R5671A represents the plug type and -11 represents the heat range. When you are looking for quality NGK marine spark plugs with customer service you can trust, visit us here at Wholesale Marine. Use cross list as a guidance only. First, you must buy marine-grade spark plugs, not automotive plugs. 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. 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 But in the real world, folks procrastinate and it's most often done as a last result when if something is amiss, like rough running, stumbling or poor acceleration, degraded fuel economy or a cloud of smoke out the exhaust. 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. How Often Should You Change Your Marine Spark Plugs? Mercruiser; Spark Plugs; 60 60 L4: Sterndrive 4: CHA-RL82C NGK-BR6HS: 0.025 Mercruiser: Spark Plugs 80: 80, 90 L4 Sterndrive . You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Once the problem is addressed, you can replace the spark plug. Please view the inboard & outboard motor application guides below. 9. - This information is disseminated in good faith, however MasterTech assumes NO LIABILITY whatsoever in regard to this service. When test running an engine, the oscilloscope pinpoints which plugs are firing and which ones are dead. Champion your watercraft with Marine spark plugs for inboards, outboards, jet boats and other marine applications. /* script places appropriate state into page */ NGK Stock # NGK Part # Competitor # NGK Stock # NGK Part # Competitor # NGK Stock # NGK Part # Accel 112 2912 BP8ES 113 1034 BP7ES 114 7333 BP6ES 115 7432 B6ES 116 7832 BP5ES 137 2298 R5670-5 138 5858 XR4 141 2611 B9ES 142 2411 B8ES 143 1111 B7ES 146 6410 B5ES 166 3212 B-6L 168 3112 B-4L 276 2771 UR5 378 2438 WR5 Copper core optimizes performance and plug life. Stock# 5241019. If there's a gasket, tighten an additional one-quarter turn; you'll feel the gasket squish as the plug snugs up tight. By examining the insulator firing nose color, an experienced engine tuner can determine a great deal about the engine's overall operating condition. Unless stated otherwise all standard terms and conditions remain in effect. For example, consulting the Champion Master Application guide, we see that the RBL8 is recommended for some 250 different engines, but you need to reference the serial number to be sure. We carry a variety of NGK marine spark plugs to fit your outboard or inboard watercraft motor. Only the plug number is labeled on the spark plug, while both are printed on the box. Select Application. NGK Iridium IX Spark Plugs Check Latest Price. NGK Standard Spark Plugs are proven technology that offer reliable performance. Check for correct application and spec/measurements. Permatex - Dielectric Tune-Up Grease, 3 oz $ 12.07. . Any use of this cross reference is done at the installers risk. America's Definitive Marine Engine Magazine, A detailed call-out of the many components of a sparkplug. Since spark plugs are one of your engine components that may be changed more often than others, be sure to check out our Captains Club loyalty rewards program to earn points towards future purchase. NGK Standard Spark Plugs are proven technology that offer reliable performance. And because copper dissipates heat faster than the normally nickel-alloy electrode, the heat range is broadened. Don't just ask for a spark plug, insist on NGK. NGK Standard Spark Plugs are proven technology that offer reliable performance. But dont worry: Moving forward doesnt mean were leaving our heritage and quality standards behind.Our new company name Niterra expresses the Groups desire to be a company that not only contributes to a sustainable society, but also one that makes the earth shine. (click picture),