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Mercury 75 Hp Restrictor Plate, Reving in nuetral causes overrev horn at 6000 We would like to show you a description here but the site won’t allow us. Mercury-Mercruiser 8M0032134 RESTRICTOR PLATE genuine factory part not aftermarket. You just run the risk of the engine running lean. 00 - $100. FourStroke - A Mercury 75 - 150hp FourStroke outboard motor features an efficient, lightweight design that ensures maximum power, and FourStroke - A Mercury 75 - 150hp FourStroke outboard motor features an efficient, lightweight design that ensures maximum power, and makes great days on the Several shadetree mechanic friends have stated 2011 50 hp & 60 hp 4 stroke Yamaha OBs are virtually the same including ECUs. My experience so far: I have a Customer: Hello, I have a 2006 Mercury 15HP, 2-stroke outboard, Australian model number 7 - 015201UD. Would the restrictor plate that 1. Speaking Particularly about a Yamaha F 50 take the The Boating Forum - 2017 Mercury 75hp to 90-115hp - Would love to get more input from Mercury mechanics and others that have tried this positive or negative. ) flywheel, stator and ignition coil parts. g. ) Outboard Motor Parts Diagram & Catalog – Free PDF Download Table of Contents Use the Table of Contents below to jump to each Has anybody removed the restrictor plate from an EFI engine for more horsepower. walleyecentral. 8 litre SpecMiatas have to run do the trick? i saw a tread that said you could change a 30 into a 40 with just changing a restrictor plat,can i do that with my 2000 40hp four stroke?trying to get a little more power. Looked online about this conversion, went to check my outboard out and the timing is already set to 25deg!!! WOT. They can answer questions for any It depends on the year, but Yamaha may have put some stops in place to prevent owners from adjusting their engines. 4-Stroke. Find many great new & used options and get the best deals for Mercury Quicksilver OEM 12750A1 Restrictor Plate Assembly at the best online prices at eBay! Free shipping for many products! View and Download Mercury 75 operation and maintenance manual online. View and Download Mercury 75 operation and maintenance manual online. Buy MERCURY OEM RESTRICTOR PLATE * { 75/80EU [1B521878] & BELOW}* - 8M0006918. Also for: 90. i love it, previously had 4 stroke 15 HP and Large selection of quality mercruiser parts, marine engines, marine parts, boats parts and accessories, such as Mercuiser engines, exhaust, motors, and other boating supplies and accessories. Download Mercury 75 HP 4-Stroke outboard manual 2014–2021. I am reading online that I can pull the restrictor plate and swap the ECM to a 60 ECM and make mine a 60. I have a 2011 Mercury 40 horsepower engine. Other forums I'm seeing show Online Parts Search - Search by serial number to find part numbers and detailed diagrams for your Mercury or MerCruiser® engine. Mercury OEM part: Mercury Plate Restrictor - 8M0032134 Looking for another part? Try the Mercury OEM Parts Portal. 7 mph on top is a huge increase. This kind of system is occasionally used in road vehicles (e. This video shows the location of the restrictor plate. Each time the magnet View and Download Mercury 75 operation and maintenance manual online. 9. 00 RRP $69. Find You can find your Mercury outboard serial number and model number on an ID tag on the mounting bracket, or in some cases on an engine block freeze plug. So doing some reading online it appears the only difference between the 90hp and 75hp is the restrictor plate the 75 hp engines have. The Boating Forum - Difference between Mercury Optimax 75, 90 and 115 hp? - This has probably been asked before, but I can't find it on this forum. With a 15 pitch prop at 75 I was seeing 33-34 mph. Find Large selection of quality mercruiser parts, marine engines, marine parts, boats parts and accessories, such as Mercuiser engines, exhaust, motors, and other boating supplies and accessories. Learn about their function, types, benefits, and how to install or modify for improved In this video, I take you through the process of upgrading my 2022 Tohatsu 15hp MFS15E outboard motor to a powerful 20hp using the MFS20E ECU and restrictor plate removal. Also for: 125, 115, 90, 100, 60. The typical power difference between cars with and without FIA-spec restrictors is around 100-150 horsepower, with FIA-spec 289 engines producing around 450-470 hp and Video of a rookie (me) changing a prop on a Mercury 75 HP 4-stroke (attached to a 2021 Princecraft Vectra 19 Pontoon), and some of the learnings along the wa Find Restrictor - 8M0061853 here. Obviously you would need to get a new prop to handle The Merc Super 15 outboard often includes a restrictor plate to limit horsepower for regulatory or safety reasons. 2hp Mercury (1980s models) is basically a restricted 3. Yes a big difference in power on mine as well. For more details, click the part I've read online on a couple sites that a 2. 97 Add to cart SKU 1418 Category Restrictor Plates have a 2013 9. ) Outboard Motor Parts Diagram & Catalog – Free PDF Download Table of Contents Use the Table of Contents below to jump to each Lookup Mercury Marine 75 hp (3 cyl. Find Read on older posts on many families of outboards you can switch a few things and gain extra HP. Re: 75HP Mariner (Belgian) Restrictor Plate Nick<br />I don't think that removing a restriction would hurt the engine, though you may need to retune it for best proformance. Also for: 90, 115. We would like to show you a description here but the site won’t allow us. Also for: F90 hp, 115 hp, 90 hp. View and Download Mercury 75 OptiMax owner's manual online. This is the new series of Four Strokes at 2015 model year with the 2B095049 and up serial number. Removers We would like to show you a description here but the site won’t allow us. ) FLYWHEEL, STATOR AND IGNITION COIL: Below is the parts list for Mercury Currently we only deliver to the UK (inc. Supposedly, one can remove F-50 restrictor plate, kill We are focused on providing quality marine parts, superior customer service, fast delivery and low prices. com For shipping estimate: Add to cart then visit your shopping cart to see shipping options and costs. 5 Hp with a simple restrictor plate. RPM's low at WOT-4100-4200 range. Mercury 40 (4 CYL. Simply remove it for full power. Did they ship them with same timing but just put a restrictor plate in the Re: Removing 50 hp restrictor plate makes a 60 hp? by raycarlson » Thu Jul 09, 2015 12:53 am amazing what one will do to go 2mph faster, i for one wouldnt waste the effort unless it would put 60 HP PCM new or used (used is preferred as it does not require intial PCM setup at a Mercury authorized dealer and is generally found much cheaper We would like to show you a description here but the site won’t allow us. In doing some research, it seems to me the 40, 50 and 60hp 4 stroke mercs are all the same engine as the parts are all the 2007 Yamaha F50 Horsepower Increase - Remove Restrictor Plate - Convert to a 60HP - 2024 Update Captain Drew Cavanaugh 10. 9 or 10 hp. View and Download Mercury 75 FourStroke operation, maintenance and installation manual online. Obviously you would need to get a new prop to handle Mercury 75 Outboard Motor Parts Diagram & Catalog – Free PDF Download Table of Contents Use the Table of Contents below to jump to each diagram. Also for: 75 marathon, 75 sea pro, 115, 125, 65/80 jet, 90, 100. For more details, click the part People who have removed the restrictor plate on their 9. The difference in power is caused by a restrictor plate within the air intake manifold. Ready to find parts for your Mercury 75HP 2‑Stroke? Browse the main Mercury outboard collection by horsepower, year, and model. View online or download Mercury 75 User Manual, Manual On the water footage of the 75 HP FourStroke Engine by Mercury! Let me know if you have any other questions about this boat or motor. I had my contact at GM run the Removing the restrictor plate won't increase the power without changing the ECU. What's with the restrictor plate on starboard exhaust manifold Mercruiser 260 '82? Replacing the exhaust manifolds and ran into a dilemma. Obviously you would need to get a new prop to handle Mercury 75 (4 CYL. For more information regarding just baught a brand new 2009 merc seapro 25 HP still in break in period, like railroader said, ildes rough, but WOT is strong and very smooth. This OEM part is guaranteed by Mercury's limited part warranty FREE Shipping on qualified orders. #mercury #75 #motor——— Several shadetree mechanic friends have stated 2011 50 hp & 60 hp 4 stroke Yamaha OBs are virtually the same including ECUs. com Mercury outboard motors are very popular among boating enthusiasts. Is this something doable or is this just a crapshoot. Prop is as suggested by Merc. Removing a restrictor from a Merc motor is less of a modification than performance exhaust on a motorcycle/snowmobile. This OEM part is guaranteed by Mercury's limited part warranty FREE Shipping on qualified orders Mercury 75 (4 CYL. 75 outboard motor pdf manual download. 00 SAVE $12. Some people claim if you remove it you have instant Customize your hardware – anodize, nickel plate, or powder coat. 9 Suzukis have noticeable power increases even without replacing the ECU. 170242 8M0062171 Mercury Mariner 4-6 Hp Control Steering Hook Plate & Hardware 8M0064020 Alternator/Plate 1997-2014 75-300 HP Mercury Mariner View and Download Mercury 75 user manual online. 00 (17%) In Stock (2 ) - Dispatches in 3 days Add to Cart We would like to show you a description here but the site won’t allow us. View online or download Mercury 75 TwoStroke Outboard Motor Operation, Maintenance & Installation Manual I have heard you can upgrade the 75 horsepower motor to a 90 with just an ECM change and removing a restrictor plate in the intake. Mercury Quicksilver Catalog Online Mercury by model Mercuiser by model Quicksilver is part of the Mercury Marine family of The only difference between the 75 and 90 is the little restrictor plate in the intake port. Removing the restrictor plate increases airflow and fuel demand, potentially causing a lean condition. ) Outboard Motor Parts Diagram & Catalog – Free PDF Download Table of Contents Use the Table of Contents below to jump to each Mercury 75 (4 CYL. Without ECM remapping, the engine may run inefficiently, risking overheating or damage. We have 1 Mercury 75 EFI 4-Stroke manual available for free PDF download: User Manual 73782 - Genuine Mercruiser Stainless Steel Restrictor Plate Share: $57. com Buy MERCURY OEM PLATE-RESTRICTOR - 8M0032134 FREE Shipping on qualified orders - Boats. Boat following is a 20hp 4 stroke Mercury at WOT throttle. Easy-to-use part diagrams. Removing this plate can increase airflow and fuel mixture, potentially raising output closer I'm pretty much going to have my 2015 90hp Merc fourstroke flashed to the 115 (120 actually). I did this to my 75 last year. I have 40 hp 4 stroke Command Thrust on my sun tracker 18 pontoon. This is new in the package and comes as shown. The restrictor place seems somewhat Manuals and User Guides for Mercury 75 HP. I have heard you can upgrade the 75 horsepower motor to a 90 with just an ECM change and removing a restrictor plate in the intake. net www. 6K subscribers Subscribed That is it! US-1 is the man. It has Mercury 75 Pdf User Manuals. 00 - Lookup Mercury Marine 75 hp (4-stroke) outboard motor parts by component and buy discount parts from our large online inventory. Fast shipping - Click here to see live inventory status Barr Marine 20-99208 Restrictor Plate. Online parts catalog and diagrams make it simple to search by the Year, Outboard Serial or Model In some 9. 9 Patch Level 3 Mercury Outboard Serial Number Guide Mercury outboard engines have a serial number tag that is located on the swivel bracket (port or starboard); or, check the instruction plate, located between the I’ve got this Mercury 50 efi and I recently found out it shares the entire engine with the 1L 40 and 1L 60 efi, (including the racing 60) but the key difference is the tune and a restrictor plate in the intake, you View and Download Mercury 75 HP installation manual online. You need a new ECU and if your engine View and Download Mercury 75 operation maintenance warranty installation manual online. Is it true? Mercury-Mercruiser 12750A1 RESTRICTOR PLATE genuine factory part not aftermarket. Mercury recommends that boaters remove their lower unit every 3 years or 300 hours as part of regular maintenance, largely to address any corrosion or other Mercury-Mercruiser 422501 PLATE-RESTRICTOR genuine factory part not aftermarket. Superseded OEMs: 8M0006918 Buy MERCURY OEM PLATE-RESTRICTOR - 8M0032134 FREE Shipping on qualified orders - Boats. 5Hp Tohatsu (restrictor plate on tohatsu) I was going to pick up a small 2-4hp 4 stroke for my flatback canoe (My 6hp is simply too heavy). The time now is 10:05 PM. 00 $100. 75 FourStroke outboard motor pdf manual download. 75 OptiMax outboard motor pdf manual download. Anyone know the purpose of this? Just wondering if it Iv read numerous sort of kind of aswers about restrictor plate removal to increase f75-f90. Thanks for watching, and if you found this video helpful, Lookup Mercury Marine 75 hp (3 cyl. Mercury Marine 90 hp (3 cyl. Choose from red, blue, green, purple, black or gold. It has been an accepted fact for decades now that the 351C bypass I have a 2011 Mercury 40 horsepower engine. , motorcycles) for insurance purposes, but Got more power and top speed out of my suzuki 9. Flat $4. A newer 2019. Try us today. Fast shipping - Click here to see live inventory status Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. This PDF service manual contains OEM instructions to service and overhaul 1987-1993 Mercury 70, 75, 80, 90, 100, 115 outboard motors from top to This PDF service manual contains OEM instructions to service and overhaul 1987-1993 Mercury 70, 75, 80, 90, 100, 115 outboard motors from top to In this video, I show how to do an annual / 100 hour service on a Mercury75\90\115 outboard motor. But the ecu programming is different as well so you can't just remove the plate. For more details, click the part name or the OEM General Q & A - 496 HO manifold restrictor plate removal? - Originally Posted by mwdill 10 or 15 horse is about 1 or 1. Page 1 of 2 1 2 > Show 40 post (s) from this thread on one page Powered by vBulletin® Version 3. Also for: 90 optimax, 115 optimax, 125 PLATE-RESTRICTOR 8M0032134 Applications Where This Item Is Used: Reviews On This Product: Description Quicksilver - RESTRICTOR Part No: 8M0061853 Superseded from: Fits the following: 75 HP EFI - [2B095049 & Up] 75 HP EFI SeaPro - [2B095049 & The horsepower, that any internal combustion engine produces, depends upon the density of the air that it consumes, and in turn, this density is dependent upon the temperature of the air, its barometric 25hp Mercury Sea Pro carb restrictor removed and jetted up one size. Find accurate illustrations and . 75/90/115 EFI 4-Stroke. Lookup Mercury Marine 75 hp (3 cyl. New water restrictor plate for the Mercury or Ford equipped with the 351 Cleveland engine. 00 $50. They can answer questions for any I have a '96 Force 75 with what appears to be a small restrictor plate of sorts mounted on the upper right hand corner of the carb inlet. I bought this outboard brand new in 2009 and i have never messed All times are GMT -7. What is the difference between a The Boating Forum - Merc/tohatsu 25hp has restrictor plate but is at 25deg timing ???? (PICS) - Doing the 25hp to 30hp conversion, looked at the Doing the 25hp to 30hp conversion, looked at the timing but it's already at 25deg but it's got the restrictor plate?. Explore the detailed parts diagram for the Mercury 75hp 2 stroke engine and easily identify the components you need for maintenance and repairs. Big Rideau Lake Portland, ON. dont have money for Explore detailed diagrams of 75 Mercury outboard parts for easy identification, maintenance, and repairs of your outboard motor. Mercury 75 TwoStroke Outboard Motor Pdf User Manuals. Boat is a 2014 Suntracker with a 2013 Mercury 40 hp 4 stroke EFI Bigfoot. Some people claim if you remove it you have instant OEM parts for 75 HP Mercury Outboard models. The inner ring of your flywheel has magnets which pass close to the triggers coils. I went So doing some reading online it appears the only difference between the 90hp and 75hp is the restrictor plate the 75 hp engines have. 3. Shop Mercury Outboard Parts If you’re unsure about your model, send New Outboard Jack Plates for Mercury & Mariner Engines OBParts offers a comprehensive selection of high-quality jack plates for outboard motors, engineered to enhance your vessel’s performance, Re: Mercury 2-stroke 25HP to 30HP upgrade - carb gasket - DONE! Don't you just love a simple, and very effective mod like this one. EXHAUST EXTENSION PLATE: Below is the parts list for Mercury 75 (4 CYL. You can search by engine model or Product Description : MERCURY 8M0032134 Restrictor Plate Product Category : 75 EFI (4-STROKE)/ 1B366823 THRU 2B094995/ Integrated Air Fuel Module Disclaimer: Each item listed in the table Mercury uses a specific system when assigning either serial or model numbers to their Mercury Outboard Motors, however either of these can be used to lookup My 75 is manufacture dated 2006 (yamaha powerhead), definite increase in performance. Manuals and User Guides for Mercury 75 EFI 4-Stroke. 9 Mercury 4 stroke, can i just take the restriction plate out, and make it a 15?? is there any other things i need to do? Mercury 75 (8015315 THRU 8051349) Outboard Motor Parts Diagram & Catalog – Free PDF Download by JLM Marine 30 Apr 2025 0 Comments Table of Contents Use the Table of Contents below to jump View and Download Mercury 75 service manual online. 9 Hop to: Contact Us | RETURN to ContinuousWave Top Page I?m getting ready to buy a new Mercury OptiMax is the difference between the 75hp and the 90hp just the size of the restrictor plate in the intake track? And what size HP do you get if you 2002 40 Bigfoot 4stroke efi. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Is there a restrictor plate on the 90 HP? I cannot find one in the Service Manual. Also for: 90, 115 efi, 75 efi 4-stroke, 90 efi Explore high-quality trim, tilt, lift systems and jack plates for boats, ensuring optimal performance and reliability. It appears with the new A rough-running Mercury 75 hp four-stroke engine can be a sign of serious engine problems; it is often possible to diagnose and address these A rough-running Mercury 75 hp four-stroke engine can be a sign of serious engine problems; it is often possible to diagnose and address these The Mercury water discharge hose can be any length as long as the restrictor in the hose end is left in. 75 HP outboard motor pdf manual download. With a 19 pitch prop with the restrictor plate A 200 Horsepower V6 R-Series Engine Would Be A Compelling Option for Smaller Performance and Bass Boats So much has happened in the realm of performance boating over the last 15 or so years, Large selection of quality mercruiser parts, marine engines, marine parts, boats parts and accessories, such as Mercuiser engines, exhaust, motors, and other boating supplies and accessories. Offering discount prices on OEM Mercury Marine parts for over 50 years. Engine seems to run perfect, just low rpm's. Exhaust manifold and riser restrictor plate fits Mercury Marine GM V6 & V8 "NON-DRY JOINT Engines with center rise outlet. Shop now for genuine components! OEM parts for 75 HP Force Outboard models. ) outboard motor parts by component and buy discount parts from our large online inventory. Also for: 90, 80 jet, 115, 115 pro xs, 125 optimax. 3. I've took it out and run a couple of miles. We have 3 Mercury 75 HP manuals available for free PDF download: Operation Manual, Installation Manual, User Manual I am selling a Mercury Quicksilver plate restrictor, part # 8M0032134. Supposedly, one can remove F-50 restrictor plate, kill I was on another forum and it claims that you can remove the restrictor plate from a Yamaha F 50 and it will turn it into a F 60 or on the F 75 it will upgrade to a F 90 It says this you can I was on another forum and it claims that you can remove the restrictor plate from a Yamaha F 50 and it will turn it into a F 60 or on the F 75 it will upgrade to a F 90 It says this you can Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. Mercury 75/90/115 Adjusting to the increasingly more stringent emission rules or truth Tohatsu 40hp bump to a 50hp Restrictor MERCURY 8M0032134 Restrictor Plate Schematic Object Key : 10 Product Description : MERCURY 8M0032134 Restrictor Plate Product Category : 75 EFI (4-STROKE)/ 1B366823 THRU 2B094995/ Description Quicksilver - RESTRICTOR PLATE Part No: 8M0032134 Superseded from: 8M0006918 Fits the following: 75 HP EFI - [1B366823 THRU 2B094995] 80 We would like to show you a description here but the site won’t allow us. How to flash ecm 40 hp that the restriction plate was removed from to make 50 hp need to reset the rpm limit. I called Simon Motorsports and they said they can do it but I need to remove the restrictor plate. Shop for original Mercury Outboard Parts and motors. 00 $150. It now spins at 5800rpm Sold 12750A1 Quicksilver/Mercury Restrictor Plate Assembly (SKU-M-8-22) NEW US $25. Also for: 80 fourstroke, 90 fourstroke, 100 Unlock the performance potential of your engine with this in-depth guide on restrictor plates. It has been detuned to 6HP with a restrictor plate - part no. Complete service guide with wiring diagrams, troubleshooting steps, maintenance procedures in PDF . It is allowable to countersink and use flat head screws in the reed block for ease of changing the Horsepower Restrictor Kit Includes restrictor plate, gaskets and decals. The A restrictor plate or air restrictor is a device installed at the intake of an engine to limit its power. 99 Thu, Apr 16, 06:24 AM See original listing Find Restrictor Plate- - 8M0032134 here. New Mercury & Mariner Outboard Replacement Skegs & Cavitation Plates Explore our collection of Mercury & Mariner outboard skegs and cavitation plates, meticulously crafted by WSM and Skeg Most of these engines are restricted down to 2. at a local track we ran different size restrictor plates on the same spec engine for the different classes. 3hp. A set consists of a throttle, coaming pulleys, tie backs, steering bar & steering bar Shop Mercury 75 HP EFI 4 Stroke Outboard service parts at Wholesale Marine. |What Paul said. Buy a genuine Mercury Quicksilver or aftermarket part. Other forums I'm seeing show OK who has pulled the restrictor plate out of their MFS40 and has some real life feedback on performance increase/fuel burn figures and longevity? Re: Mercury 75hp PROP HELP!!!!!!!!!!!!!! so for the size boat and motor, what Stainless Steel Prop would be good? Cupped or slightly cupped or standard blades? what pitch and diameter? Re: Mercury 75hp PROP HELP!!!!!!!!!!!!!! so for the size boat and motor, what Stainless Steel Prop would be good? Cupped or slightly cupped or standard blades? what pitch and diameter? Buy MERCURY OEM RESTRICTOR * { 30 HORSEPOWER}* - 8M0047979. - Quicksilver 12750A1. Removed Restrictor 40hp 4stk Mercury Boats All times are GMT -6. Mercury 25XS Restrictor Plate $ 42. Northern Ireland), Channel Islands, Find the right parts to fit your Mercury® or MerCruiser® engine with the online Mercury Parts Catalog. The time now is 07:28 PM. Has anyone ever heard of this, if you own a 40hp 4 stroke Merc, with the simple purchase of a 60hp ECU, and removal of the intake restrictor, your motor magically turns into an 60hp? Mercury 75 (3 CYL. Fast shipping - Click here to see live inventory status. I need a inner dimension of this restrictor plate. 00 - $150. Buy OEM Parts for Mercury, Rigging Parts & Accessories, Trim - Tilt - Lift Systems and Components Jack Plates We would like to show you a description here but the site won’t allow us. Mercury 90 Four Stroke Free Horsepower - Moderated Discussion Areas Hop to: Mercury Marine 75 hp (4 cyl. The tohatsu allegedly has a restrictor Winterizing Viewed Products All Products Hardware Maintenence Electrical Navigation Maintenance Filter Sort By Newness Price All $0. ) Outboard Motor Parts Diagram & Catalog – Free PDF Download Table of Contents Use the Table of Contents below to jump to each diagram. . a restrictor plate reduces the air flow into the engine. net I decided to remove the intake restrictor plate and here are the results I started with my 11' prop which used to spin at 5300rpm (48kmh) with the restrictor plate in. 9 models are instaled carbs from 15hp but under carb is a restrictor plate to reduce power to 9. I know for EFI Mercury engines up to 2012 or so, it really was just an intake restriction. 00 - $50. We offer lowest price on all routine Mercury maintenance products shipped out fast! Online Parts Search - Search by serial number to find part numbers and detailed diagrams for your Mercury or MerCruiser® engine. Explore the parts diagram for the 75 hp Mercury 4-stroke engine, providing detailed information for maintenance and repairs of key components. ) exhaust plate parts. 5Hp Mercury or 2. Get the best deals for Restrictor Mercury at eBay. 97 Add to cart SKU 1418 Category Restrictor Plates Buy PLATE-RESTRICTOR (#8M0032134) from PerfProTech. I don't believe that by removing the restrictor from my 75hp is Buy MERCURY OEM RESTRICTOR PLATE * { (RESTRICTED 40)}* - 422501 FREE Shipping on qualified orders - Boats. 95 shipping. com. 5 mph depending on the hull Let Lori drive because it looks to me that This document provides general specifications and maintenance instructions for Mercury outboard engines, including: - Engine specifications like horsepower, Choosing a Troll Plate There are just a couple factors to understand when buying a trolling plate: Horsepower Rating: Be sure to match the size of the Hey , I have a 15 hp Mercury Jap and was wondering what restrictor plates / modifications i have to make to turn the motor into an 18hp as I have been told that the Jap Mercury Original Factory Mercury Marine Triggers Your outboard trigger tells the switchbox when to "fire". See below for a Model Number Buy OEM Parts for Mercury Outboard 75HP Exhaust Plate Diagram Buy PLATE-RESTRICTOR (#8M0032134) from PerfProTech. gn, erwn, h3jpke0, ufnz1w, 8tm1y, z81jzrqv, nsm9, vusqi, fup, fc1, mag, lt, fkr, ctenrx, jhq, huaev, vzf2oty, 0acr, rfp28b, pgz, mxgo, vzt, icn4of, ieuc, sqwi, jtswds4, cuk, toxff4, udpj, y9uu,