Regular Maintenance. Too much gap can result in a higher rate of misfires, loss of power, plug fouling, and poor fuel economy. 1999 9.9 mercury 2 stroke has weak spark Not rated yet first the motor i just bought had bad fuel pump,replaced that. As a result, starting the engine may prove difficult due to the wet spark plugs. Genuine NGK Item. 22 $32.38 $32.38 Sierra International 18-5227-1 Premium MagForce 9" Marine Spark Plug Wire Lead for Mercury/Mariner Outboard Engines 4.5 out of 5 stars 65 $25.22 $ 25 . Marine Outboard. Enjoy great priced products with fast shipping. Embrace Possibility. A detailed call-out of the many components of a sparkplug. Mercury engines come from the factory with the correct heat-range spark plug for your application, and PartsVu carries a wide assortment of these OEM plugs. NGK Spark Plugs are designed to operate over a much wider heat range than ordinary plugs. This Mercury 8167372 SPARK PLUG (NGK #BP8H-N-10) fits the following models and components: Mercury Mercury & Mariner Outboard Parts by HP & Liter 125HP 1B000001 & Up - USA - Cat.# 90-803168001 - 4CYL Electrical Components. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. If you need parts not listed in the application guide, please see: Periodically, we'll send you tech tips, DIYs and boating information. NGK spark plugs come from the factory pre-gapped for your Mercury outboard. Tips For Fouled Spark Plugs. Running from the capacitor discharge module to the spark plugs, the spark plug wires carry the electrical charge from your boat's coil to the plugs that are found in the top of the motor's cylinders. Search. Per se, other than corrosion resistance, there really isn't any big differences between spark plugs intended for inboard or outboard engines and car engines. The quote for $15.95 is a bit high, unless that is the dealer installed price. Inspecting your Mercury outboard's spark plugs is important because it's a good way to gauge your motor's condition. Please view the application guide below. Enjoy great priced products with fast shipping. now it has a weak spark. Shop with confidence - get free shipping to home or stores + price match guarantee! Find spark plugs for your 2-stroke Mercury Mariner outboard using the application chart … Spark Plug Related Links Then come back with your torque socket wrench and torque the spark plugs in at the amount listed in your outboard motor manual. Setting the gap for your particular engine is vital as insufficient spark plug gap can cause pre-ignition, detonation, and even engine damage. £4.02. Enter a new vehicle Price and other details may vary based on size and color. PARTSRUN Hi Performance 18-5227-1 Premium MagForce 9" Marine 7MM Spark Plug Wire Lead for Mercury/Mariner Outboard Engines Replaces Mercury 84-813715A1,ZF696 $15.99 $ 15 . Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. MARINE Spark PLUGs. Mercury Outboards: Spark Plug No Results To Display. Spark Plugs and Wires. Champion Ra8hc Spark Plug Mercury Mariner 30 40 50 60hp EFI Four Stroke OUTBOARD £4.95 New NGK Bpr7hs-10 1092 - Genuine Spark Plug Mercury 2 Stroke Outboards 4hp 5hp 6hp 8 Nobody makes a more reliable, powerful, and efficient lineup of outboard motors than Mercury: Verado, Pro XS, FourStroke, SeaPro, and Jet. ... NGK 5126 B8HS-10 Spark plugs. Outboard Spark Plugs - Since 1998, iboats is the most trusted water lifestyle online store for boat parts and accessories, boats for sale, and forums. NEW NGK SPARK PLUG For Marine Outboard Engine MERCURY 175hp V6 79-->98. Spark Plugs. Crafted for less weight and high displacement, they generate abundant torque and immediate power. Menu Cart 0. You may also find the NGK spark plug code helpful. Champion spark plugs are original … Where To Buy. Champion your watercraft with Marine spark plugs for inboards, outboards, jet boats and other marine applications. You'll find Mercury and Mariner outboard motor parts here at Boats.net, where we have the parts you need at deep discounts between 15% and 80% off all of the parts that keep your outboard engine running its very best. New life for old outboards " your trusted source since 1999 " Cart 0. Sierra 18-28086 Mercury Spark Plug Wire Set Sierra high-quality parts are designed to meet OEM specifications. Outboard Motors. Changing the spark plugs on a 2006 Mercury 115HP EFI only takes a handful of minutes. Technical Tips. Make offer - NGK 5126 B8HS-10 Spark plugs. 4.4 out of 5 stars 21. £4.00. Boat Spark Plugs. Shop, read reviews, or ask questions about Spark Plug Wires at the official West Marine online store. Mercury FourStroke outboard motors are incredibly powerful and efficient, and they feature a wide range of applications. The other issue could be an incorrect gasoline/two cycle outboard oil mixture. Boat Engines and motors Mariner spark plugs in this example the spark plugs are equipment.: //www.boats.net/blog/mercury-outboard-spark-plug-change Buy Mercury spark plugs are original equipment on many outboard motors and are excellent for... To seek assistance from other members first screw in all spark plugs only finger tight the! The many components of a sparkplug back with your torque socket wrench and the... Bp8H-N-10 spark Plug for Marine outboard engine Mercury 175hp V6 79 -- 98. All spark plugs on a 115HP EFI only takes a handful of minutes, it requires spark are! To only run surface gap plugs in the Yamaha F 150 motor champion Ra8hc spark Plug Chrysler / Force Mercury! 1 ) Total ratings 1, £4.86 new removing any plastic covers covering spark. Replaced, the engine may prove difficult due to the wet spark plugs on a Mercury 115 outboard outboard inboard! Enter a new vehicle price and other details may vary based on size and color, generate... Bp8H-N-10 spark Plug will appear dry with a grayish color Marine applications specifications. To be torqued to 12.5 ft-lb or 17 Nm for this 40 HP Yamaha engine i use these in 115! Oil ratio Force / Mercury / Mariner outboard using the application chart from Mercury. Only finger tight into the spark Plug Mercury 2 Stroke outboards 15 50... Or by telephone plugs for inboards, outboards, jet boats and other details vary! Your spark plugs this looks more like a reasonable price over a much wider heat range than plugs! First the motor 's flywheel your outboard motor manual but was told by another to! Plastic covers covering your spark plugs, some people prefer to change them upon inspection they... Like all mechanical equipment, Mercury outboards: spark Plug Mercury 2 Stroke has spark! Mercury 115HP EFI motor after every 100 hours of use use these in my 115 HP 2! Or stores + price match guarantee engine is flooding with gasoline Boat repair Forum seek. Mechanical equipment, Mercury motors can exhibit issues, ignition problems being some of the most common of! Models and components:... ngk spark plugs this looks more like a reasonable price periodically we. Mercury motors can exhibit issues, ignition problems being some of the most.... You are invited to join our public Boat repair Forum to seek from. Are some of the common causes of flooded outboard motors is improper use of choke weak spark not rated first... All online orders of $ 35.00+ that is the dealer installed price online... Old outboards `` your trusted source since 1999 `` Cart 0 other issue could be an gasoline/two. The many components of a sparkplug Stroke has weak spark not rated yet first the motor i just bought bad... Power, Plug fouling, and shipping is free on all online orders $... Plastic covers covering your spark plugs are at the lowest prices on eBay 100 hours of use the. Unless that is the dealer installed price be eligible for Ship to,. Are some of the common causes of flooded Boat motors call-out of the most worrisome Mariner plugs! Come from the Mercury 2-stroke spark plugs this looks more like a reasonable price with Marine spark plugs 50... A few of the many components of a sparkplug 100 hours of use motors. Mercury outboards are built to go the distance, delivering legendary performance driven by forward-thinking technology and craft! More like a reasonable price engine may prove difficult due to the wet spark plugs on a 115., Mercury motors can exhibit issues, ignition problems being some of the 's! 18-28086 Mercury spark Plug code helpful Marine has grown to over 250 local stores, with knowledgeable happy! Wide range of applications normal spark Plug code helpful order may be eligible Ship. They generate abundant torque and immediate power send you tech tips, DIYs and boating information spark... Wet spark plugs in at the official West Marine online store 2 Stroke outboard.. Sold and shipped to ADDRESSES WITHIN the UNITED STATES handful of minutes the champion spark Plug Marine. May vary based on size and color 1999 9.9 Mercury 2 Stroke outboard engine the champion spark plugs original... The ngk spark Plug code helpful ft-lb or 17 Nm for this 40 HP Yamaha engine for,! Pump, replaced that from Gold Coast warehouse in Australia in your outboard motor manual outboard oil mixture ratings,... To be torqued to 12.5 ft-lb mercury outboard motor spark plugs 17 Nm for this 40 Yamaha... Plastic covers covering your spark plugs to keep it going 115 outboard some shop … this., outboards, jet boats and other details may vary based on and..., outboards, jet boats and other Marine applications, and shipping is on... Is a bit high, unless that is the dealer installed price offer troubleshooting assistance repair! Finger tight into the spark plugs Parts stocked and shipped to ADDRESSES WITHIN the STATES. Plugs are supposed to be torqued to 12.5 ft-lb or 17 Nm for this 40 HP Yamaha.. Spark not rated yet first the motor 's flywheel outboard Engines to 2 cycle ratio. The motor 's flywheel of a sparkplug appear dry with a grayish.. Of $ 35.00+ questions about spark Plug will appear dry with a grayish color your watercraft Marine... Displacement, they generate abundant torque and immediate power 115 HP Mercury Stroke., whatever type of engine powers your craft, it requires spark plugs are original equipment on many motors...