Mercury outboard lower unit gear ratios

MercAftermarkets offers aftermarket and OEM Yamaha Outboard lower units. 0, 2. 9-horsepower range includes not only a high-thrust model, but also a ProKicker unit that has better gear ratios, a heavier gear case Solid mounts, a choice of lower, a choice of gear ratios and they are among the lightest power to weight for performance consumer outboards. 87:1 Shaft Length 20″ 25″ 25″ 20″ 25″ 25″ Pinion Teeth 14 14 14 15 15 15 Rotation Right Hand Right Hand Left Hand Right Hand Right Hand Left Hand Fits Mercury […] In the case that you are trying to find Omc Upper Gear Case Boat Parts, you have certainly come to the perfect place. 14 teeth means a 2. Just performing a simple tune up and need oil, lube and filters? Mercury 3 litre Outboard Lower Unit Aftermarket Gearbox from Blackstar Marine Parts in Australia. General information on how outboard motor gearboxes work --The lower unit houses the gearcase / gearbox / transmission / propeller on most engines. It contains the Forward, Pinion, & Reverse Gears, Forward Gear Bearing, Pinion Nut, and Shim sets. Current models include low water pickups, however, earlier models did not. Aside from our inventory listed here we also supply Mercury lower units directly from Mercury Marine, either new or remanufactured. 0:1 40 50 60 70 Hp $400. Mercury 115 FourStroke Mercury Marine’s line of second-generation 4-stroke outboard engines, all based on a larger 2. For all practical purposes, the (3) gears in the lower unit are all the same size. General recommendation is for a GL-5 class lubricant, i. 5 to 20 horsepower, with six models from 8 to 15 horsepower. View and Download Mercury 225 service manual online. 62:1 or 1. There are a few things to consider when ordering a new lowerunit. About Sterndrive Replacement. We also stock the shafts and water pumps for these lower unit replacements. 0 litre marathon. 75:1, 1. Complete Lower Gear housing Gear Set for a Mercury, Mariner Outboard. (5) Designed to run at elevated transom heights of 25 to 27 inches Yamaha Outboard Lower Units. the previous record held by a one off special outboard motor based on a car motor. 00 8866a20 231 We also have powerheads, gaskets and seals and gear cases to fit almost any Johnson model so you can buy anything and everything your boat requires from one fast and reliable source -Wholesale Marine. When you're part of the Mercury family, you will find all the help you need to maximize your time on the water. Sterndrive Replacement is a company unlike any other in the sale of aftermarket MerCruiser's Sterndrive , Alpha One Generation 1, Alpha One Generation 2, Bravo 1, our stern drive designed to replace Mercury Marine's Mercruiser®, Alpha One®, R, MR, Gen 2 and Bravo One® stern drives. Diesel provides higher efficiency and torque, generates enhanced acceleration and lowers fuel consumption. 78:1 to 2. 08 225 HP Verado 2005 Thru 5800-6400 1. Most times the ratio can be made up for in prop pitch. 42:1 Gear Ratio); High Thrust Propeller  early 60's Merc inline 6 to use the "Super Speedmaster" Lower unit. Offering discount prices on new and remanufactured assemblies for over 45 years. 68:1) for lighter, speedier pleasure boats and higher gear ratios (3:1 or higher) for heavier work boats (tugboats). This is why Suzuki can get down with the down low - ratio that is. The serial number will not tell you the shaft length. 0 litre seapro, 250 efi, 3. Buy a genuine Mercury Quicksilver or aftermarket part. 42:1 gear ratio and high thrust propeller make the Mercury 9. I just purchased a new in the box mercury lower unit on ebay for $1,000 shipped (1647-9148T83) as a spare. 5 with 14 3/4 x 21 props on a 25' whitewater. 08 150 HP Verado 2006 Thru 5800-6400 2. Works for all gear ratios. Mariner / Mercury outboard gear set. Use this chart to determine your gear ratio before ordering a Mercruiser R-Style, Alpha 1 or Alpha 1 Gen 2 sterndrive. Mercruiser Sterndrive Gear Ratio Chart . 81, 2. Also for: 225 efi, 3. 95! Kiekhaefer Mercury Vintage Outboard Motor service manuals are available for immediate download! This service is available for only $4. Tech Support A Boston Whaler comparison of gear ratios and lower unit sizes is my current 1988 15' Center Console. 99. Pick up only %0a. I was able to find forward, neutral, and reverse on this unit. Mercury & Mariner Lower Units. The stock gearing on outboards causes the shaft to turn slower than the RPM at the powerhead. As far as determining the ratio, I believe it has to do with turning the flywheel exactly one complete turn and seeing how may turns the propshaft makes. Use our convenient OMC Cobra Sterndrive Parts selector guide, or if you’d prefer personal and attentive service, just give our representatives a call. 95 1979 Mercury Lower Unit Gear Ratio 2. 87 Ratio V6 43-44104A2. Amazing 3 year No Fault warranty! Replaces R, MR, Alpha One lowers from approx. In stock and ready to ship. This INSTANT DOWNLOAD 80 horsepower outboard engine repair manual was designed for do-it-yourself mechanics and factory trained technicians. I was looking through the specifications the other day and notices it has a 2:1 gear ratio in the lower unit. Brand New Aftermarket Replacement for Manufacturers Warranty - 3 Years on Outboard Lower Units. com. Consult the Mercruiser sterndrive gear ratio chart alpha one. We work with the top suppliers in the industry. Still looking for a good deal on a lower unit. 2L. A 25HP outboard Yamaha, Suzuki, Johnson, Evinrude, Mercury, marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 25HP outboard motor to factory specifications. 87:1 1. 95 per download! If you have a dirty old paper copy of this manual or a PDF copy of this manual on your computer and it crashed we can help! DOWNLOAD a Mercury/Mariner outboard user's guide repair manual straight to your computer in just seconds and fix your problems now! Gear Set Lower Unit For Mercury Mariner Outboard 1. Mercury V6 Outboard Lower Unit 2. 5" diameter was almost impossible to steer at speed. There is a decal on the engine which says "This engine is to be used solely for competition". NOTE: Mercury DOES NOT Use Model Years For Parts Lookup. At about the same time Scott got their racing stuff to market in 1961, Mercury . 2 liter block and is one of the most stout 2-stroke available and makes just over 300 HP, with torque around 330 lbs/ft. The oil has been drained and pictures of the oil are included in the listing. The 1989 has a short shaft and the 1977 is long shaft. 47:1 gear The M8 sterndrive combines the best features of the NXT6, but with even more robust internal drive components and an all-new lower gearcase. forces placed on the lower unit of today's big, powerful outboards. No issues with gear case. Also fits Mercury / Mariner V6 (3. It will fit the following <p>This lower unit was removed from a 1977 Mercury outboard that was run in freshwater only. This was the thought behind making the 5. The motor had set up for 10+ years so it is likely that it may need some TLC. MERCURY VERADO® RPM CHART HP/Model Years WOT RPM Gear Ratio 135 HP Verado 2007-2010 5200-6400 2. 025 in. 00 $895. 20" 45-824114A 1 25" 45-823901A 1 30" 45-824115A 1 (This item is no longer available from the OE. 00. The OXE power head is significantly more efficient than gasoline engines. 64mm) with Tool 91-12349A2 Using Disc #2 and Flat #4 Forward Gear Backlash 1. Mercury Gear Ratio  Lower Units – Gear Cases & Lower units for outboard motors. Armed with this information, the engineers have designed Suzuki outboard motors with a large Cubic Inch Displacement, (remember there is no replacement for displacement), light weight and an aggressive final drive ratio. What lower unit gear lube should be used on a 9. Re: Lower Unit gear Ratios Yes, there are different lower uits that will fit your motor. The 1977 is off a 70 HP 3 cyl but would also be the lower unit for 3 cylinders and 4 cylinders of many years. It consumes 42% less fuel than a comparable modern 200hp 2-stroke outboard. Mercruiser R-Style Sterndrives (1969 - 1983) 90-205-A20 - SE205 Lower Unit Mercury 3 and 4 Cylinder, 2. 75 Ratio V6 12:21 6 Jaw $549. Generally there are actually a bunch of sites to buy from on the world wide web, yet you have chosen our site and we value this very much. US Boatworks offers you two choices to meet those needs. Createshao Outboard Water Pump Kit for Mercury Mercruiser Alpha One Boat   Lower unit gear ratios are not just for high thrust motors as evidenced Whaler equips some of their models with the Mercury "BigFoot" 60 HP  Sep 9, 2011 A sturdy Verado gear case meant for heavy lifting. If you have any questions about whether this lower unit will work for your motor or gear ratio, please send us an email with your engine model and serial number to obparts+cs@gmail. The engine sits just forward of the transom while the drive unit (outdrive or drive leg) lies outside the hull Oct 11, 2017 New lower units for Mercury/Mariner 6-cylinder 150 Optimax, 150, 175, and Mercury/Mariner Driveshaft Length Replacing An Outboard Water Pump 1979- 2018 V6 1. The OMC lower units, also known as Johnson and Evinrude, will arrive without the drive shaft and water pump. Maybe others will know for sure. 08 200 HP Verado 2005 Thru 5800-6400 2. Boats. 0 L COUNTER ROTATION. Motors are 93 merc 200hp 2. The larger 4. SE216 Replaces Most Mercury 3. In the case of a Bravo there is also more load on the gear floor. Evinrude Johnson V6 outboard lower unit gearbox from Blackstar Marine Parts in Australia. The Pontoon Series 115 uses a 2. If you have an 8 Spline drive shaft you will need to buy the stub shaft unit and purchase an upper driveshaft from an OE dealer. Mercury gear / Mariner / Force Outboard forward, pinion and reverse; Compatible with 3 cylinder, V4 2. Yamaha's lower comes close, but the Merc trumps it with a choice of gear ratios for different applications (1. A Mercury Marine engine serial number is a unique identifier all There’s more unusual gearing going on at the other end of the outboard, where Seven offers a choice of lower unit gear cases in addition to the base model. Mercury has fixed many of the weak areas in the Bravo drive to varying extents with the new regular and X series. Choosing the best new or aftermarket Lower Units for your needs is what is important. 85 Lower Mercury and MERCURY OUTBOARD LOWER UNIT 3. They look similar but the 300 XS is a 3. The size of the boat propeller needed is largely influenced by the lower unit gear ratio. Founded in 1939 by the talented engineer-businessman Carl Kiekhaefer, the Mercury brand of boating engines are found as factory equipment with many watercraft manufacturers. As a rule of thumb, the larger HP engines have either a lower gear ratio (1. 5 Liter V6 Engines . 75:1 for the 300 HP Verado. High-Performance Outboard Lower Units. 5 to 350 horsepower for more than 75 years, though the company's first motors did not have as much horsepower as some of its current motors. Mercury Product Protection® extended service plans. Well, Joe may not find any navigable “down hill areas” on the water, but he could regear the lower unit and realize the full performance potential of the modified powerhead. A heavy-duty high performance Mercury lower unit that does not have a nosecone. Complete Gear Set for a Mercury/Mariner Outboard. • Beecher City, IL 62414 618 487 9499 Mercury Marine 250 hp pro xs (3. DOWNLOAD 50HP Outboard Repair Manual Mercury Yamaha Johnson Evinrude Suzuki INSTANTLY DOWNLOAD a 50 horsepower outboard repair manual straight to your computer in seconds. A sterndrive or inboard/outboard drive (I/O) is a form of marine propulsion which combines inboard power with outboard drive. Available in 75, 90 or 115 horsepower, these refined four-cylinder engines are cleaner burning, quieter and give better fuel economy with less maintenance than their predecessors, according to the Kiekhaefer Mercury Vintage Outboard Motor Service Manuals for only $4. Mercury Outboard Lower unit replaces 2. 85:1 gear ratio (same as the  Apr 4, 2019 Gears for Mariner / Mercury outboard 3 cylinder, 4 cylinder and V6 lower unit models. We have direct replacement units for the Yamaha V4, V6 2. 4 liter, and 2. 33 gear ratio and about 13. Manuals contain step-by-step repair procedures, illustrations, pictures and advanced troubleshooting. 175hp Mercury/mariner Outboard Motor Lower Unit-engine Gearcase Gear Case Foot Lower Gear Set 1. 9 mercury outboard? What type of oil do you use in mercury outboard lower unit? If the horsepower of your Mercury outboard lower unit is 75 and 94 40 MERCURY 1643-9539 a12 Mariner Outboard Lower Unit 50 HP pre-load pin 4 cyl - $309. 87:1 Gear Ratio Lower Unit -- 150DFI, 150, 175, 200  That serial number shows a few options, so unfortunately I am not able to confirm the ratio. So if your serial number is "0 1234567" you would use only Mercury removes the lower unit because the motor is not sold in the US of A as a 'fishing motor'. 0 liter, 2. The best way to order the correct lowerunit is to send us your engine serial number. 87:1 gear ratio. Remanufactured Gear Cases are priced at deep discounts to save you money; Rebuilding: Mercury, Mariner, Force, Evinrude, Johnson, Chrysler. The serial number is usually found on the swivel or tilt bracket. ) Compact and Lightweight; Designed for Heavy Applications; CommandThrust Lower Unit (2. Factory-backed, non-declining warranties. All of our Mercury lower units include a full one year warranty. The gear ratio of the SSM and Speedmaster is 1:1, where the FGS lowers were approx. See specifications for gear ratio. 0L applications. To find the right lower unit you will have to know your shaft length. 1-liter displacement block. The surface-piercing gearcase, inspired by the legendary dry-sump NXT6 drive, is two inches shorter to compliment the lower engine profile. 0L Outboard Lower Gearbox. We carry Yamaha V4, and V6 replacement lowers and offer then in several gear ratios, and shaft lengths. Can I replace a 1973 20hp mercury outboard lower unit with a 1974 lower unit? Are the gear ratios the same? Any input? - Answered by a verified Marine Mechanic Mercury & Mariner Lower Units. Locate 12 mm screw head on shift actuator (lower starboard side of engine. It is important for the savvy boat owner to know the gear ratio of his motor’s lower unit for propeller speed and efficiency calculations. Tracker graphite gray long shaft (22 3/8 from mounting flange to tip of pre-load pin), 13 spline propshaft and 11 spline drive shaft lower unit off of 1994 4 cyl 40 hp mercury outboard in good shape, has small piece chipped out of carrier at seal but has been there a while and passed pressure test at 8 At Marinerswarehouse, We have complete range of OMC Lower Unit Replacements, including Johnson Lower Unit rebuild kit, Evinrude Lower Unit rebuild & New Lower Units. 85 250 HP Verado 2005 Thru 5800-6400 1. Our large selection of Outboard lower units of different brands will certainly I want to know the gear ratio of my 1997 90 hp mercury outboard with serial number OG527763 1997 90ELPTO - Answered by a verified Marine Mechanic The lower unit gear ratio change is by model number. The Sport Master gearcase offers heavy-duty durability for boats that travel in excess of 85 mph, with low-water pick-ups and a crescent leading-edge design that maximizes efficiency and speed. ). These gearcases come completely assembled and ready to install. It was also programmed to handle up to 10% ethanol fuels blends to minimize loss in performance due to ethanols. I git it used with its original 1988 70 HP Mercury, and a 22" Laser 2 prop. A change of the gear ratio from 1. Category When most people talk about a marine gear ratio, they mean the reduction ratio of the motor that expresses the number of times the motor turns--the number of revolutions--to turn the propeller once. 0-inch gearcase footprint, combined with the robust 2. 79 Ratios. Mercury Outboard Parts, Propeller & Gear Ratio Selection Fundamentals Your Best Source for Marine Propellers, Mercruiser Sterndrives & Marine Engines at the Best Prices! ** Offering the option between Original Equipment Mercruiser Parts , Direct Replacement Mercury Outboard Parts , and High Performance Marine Engines and Marine Parts ** Get the best deal for Mercury Boat Outboard Lower Components Units from the largest online selection at eBay. Gears for Mariner / Mercury outboard 3 cylinder, 4 cylinder and V6 lower unit models. Browse your favorite brands affordable prices free shipping on many items. Available for 2. More info call us 514-963-6959. 62:1 Gear Ratio Service Replacement Re: How do I find my gear ratio?? I cheated; I spoke with someone at a boat yard who ran my Motor serial number and that provided several statistics including the gear ratio. Mercury 150 HP Mercury 75, 90, & 115 HP 4-Stroke Outboard Gearcases. Off a 1999 125 hp that had oil pump failure. 51 And 1. 25:1 lower unit. Sterndrive Engineering SE106 lower unit. This ran well, 43 mph GPS, but with the large lower unit 2. Most any of the oem, or aftermarket gear lubes, manufactured for GEARCASE ASSEMBLY COMPLETE 1647-9148T81 1647-9148T82 1647-9148T83 1647-9148T84 1647-9148T85 1647-9148T86 Color Black Black Black Black Black Black Gear Ratio 2:1 2:1 2:1 1. 61:1, or 1. 00 RATIO. 43:1 Counter-Rotation Twin Prop Upper Unit Gear Set Precision Shimmed Assembly with Near-Net Forged Helical Gears Lower Unit Gear Set Precision Shimmed Assembly Forged Bevel Gears with Twin Counter Rotating Propshafts for Bravo Three Propshaft Material Heat-Treated Stainless Steel Mercury Racing #6 Uppers - 1. This set contains Forward,  Mercury Outboard Parts, Propeller & Gear Ratio Selection Fundamentals achieve the lower side of the rpm propping range you will likely damage the engine. A full Technical Library containing Mercruiser Bravo 3 Sterndrive Specifications. EVINRUDE / JOHNSON OUTBOARDS (Direct injection / 4 stroke) HP/Model: WOT RPM: Gear Ratio: 15 4-Stroke: 5400-6000: 1. Upper Driveshaft MERCURY LOWERS, 30 hp & 40 HP, 2 STROKE, 2. Mercury’s 9. Sterndrive Upper & Lower Driveshaft Assembly for Mercruiser, OMC & Volvo-Penta. Outboard motor gearcases come in all styles, sizes, and ratios depending on the motor’s attainable speed, horsepower, and type of usage. The SmartCraft engine control unit (ECU) has been remapped to deliver improved fuel economy and reduced emissions. Once you become a Wholesale Marine customer, our selection, expertise, customer service, and Captain’s Club Rewards Program will make you a Wholesale Marine customer for life! For same day Yamaha Outboard Lower Units. The CR option is certainly the most unusual, with twin contra-rotating propellers similar in function to those found on the Suzuki DF350A, and a choice of 1. We stock remanufactured and new gearcases for Mercury and Mariner 60 to 275 horsepower, 1979 to 2011. Lower unit Mercruiser gear set application chart with cross reference tables for gear ratio, model year, part numbers and serial numbers. Signed by the Artist. YAMAHA Lower Unit Reference Guide Master Legend Sterndrive Replacement Part Number and Quick Reference Guide and Application Outboard Marin Alpha One®, Gen 2, R Re: Mercury gear ratios Corm my current set up is a 150HP merc running a 24 pitch TURBO prop at 5900 rpm speed is low 60's. 1L, and 3. Mercury 40-60 HP 4-Stroke Outboard Bigfoot Gearcases. 9 outboard Lower 48 states. I have never owned an outboard engine and need to know if changing gear ratios in a used 4 stroke engine is a big deal or not. Buy SEI MARINE PRODUCTS - SE206 1. 0l dfi) gear housing(driveshaft - torquemaster) parts. Each 80hp engine repair manual covers every aspect of repair. What does the serial number tag on your motor say for the model #? The 20" model has a 2:1 lower unit and the 25" model has a 2. With electric motors it is a function of the windings and current and RPM, with diesel engines it is Cubic Inches(HP), gear reduction and RPMs. All of our aftermarket lower units are NEW with a shiny coat of black gloss paint. . Nevertheless, there is still a difference in the level of quality between these suppliers (whether the replacement parts are new or aftermarket, etc. Gary Parson's host of the Next Bite television show explains how to find an engine serial number on a Mercury outboard engine. We can use your serial number to look up the lowerunit that your engine came with from the factory. No water or metal was found. Vertical Lower Unit Drive Shaft for Mercruiser Alpha One Generation 2 Drives 1991 and up. Otherwise Merury's number is 920-929-5040 Alternatively if you have the lower unit apart, you can count the pinion gear. 225 Outboard Motor pdf manual download. Escalating Mercury Marine, based in Wisconsin, has been making Mercury outboard motors in two- and four-stroke versions ranging from 2. My plan is to rebuild a 200HP power head that I have and install it on my 150 center section/lower unit. 87 Gear Ratio 20" Driveshaft: Our SE206 Lower Unit is a replacement for Mercury 2. By gearing the engine down, more torque is created. 33/1 gear ratio. Visit our website, it is clear and totally secure. One a 1977 on the left and a 1989 on the right. An extensive network of factory-trained dealers. 0:1 ratio 11555 Lower unit kit. You will note that some older models are also listed, some with question marks. 0L Lower Units 13 Splines 20, 25, and 30 inch Shafts. I believe if you call Mercury Marine they can confirm  Some engines need lower gearing to stay in their torque range, but super cavitating props IE; as used on speedmaster style lower units, run  Aug 24, 2012 Outboard motor gearcases come in all styles, sizes, and ratios owner to know the gear ratio of his motor's lower unit for propeller speed and  Apr 10, 2010 I have an 87 115 L6. 75:1). Price, $1,295. Lowerunits come in different styles, ratios, lengths and rotations. 64:1and 1. Both power heads I believe are of the same year. Buy confidently when you shop online for Mercruiser Sterndrives with PPT. Southcentral Outboards 2808 N 2150 St. 61 Gear Ratio - Other Gear Ratios in stock - Sold as a set only - Only 1 set left - $10,500 per set - Recently rebuilt - Only test time on them 7 Mercury Racing M8 Number 8 VIII Stern Drives w/ Gimbals - BRAND NEW in the Box The downside to a higher reduction in the upper is that there is more torque on the lower gears, vertical shaft and prop shaft. 0L) late Alpha gearcase outboards (200, 225 Force Outboard; Honda Outboard; Johnson Outboard; Mariner Outboard; Mercury Outboard; Yamaha Outboard; Outboard Cowling; Suzuki Outboard; Tohatsu Nissan Outboard; Clinton, Eska, Tecumseh, Sears; Outboard Repair Manuals; Pontoon Boat Stuff; Propeller SALE!! Prop Finder by Model; Prop Hub Kits; Props For Evinrude Johnson; Props for Honda; Props The size of the boat propeller needed is largely influenced by the lower unit gear ratio. This Chart Is For Reference Only, Since Many Aftermarket Parts Manufacturers DO List Parts By Year A "0" in front of the serial number is not significant, it's a placeholder only for Mercury's software. Well I guess not since mercury has a different gear ratio for 4 strokes that 2 strokes. 9 HP Mercury Outboard Motor model: 9. I am almost certain my other motors have 1. A leading name in marine engines, Mercury is recognized for producing top-quality outboard motors as well as the MerCruiser line of inboard engines. 9EXLHPT-CT-PK is equipped with an A low 2. 5 Liter. Now it is a 25" CR (perfect for me) but the down side is it has a 2:1 gear ratio. All remanufactured lower units for sale include a full 1 year warranty. Amazon Prime Day Is The Perfect Time To Stock Up On Gear For Your Boat. 6A-2 - LOWER UNIT 90-822900R3 DECEMBER 1997 Gear Housing Specifications (Standard Rotation) Forward/Reverse Gear Backlash and Pinion Depth (Ratcheting and Non-Ratcheting) Pinion Depth All Models 0. 5 and 3. A heavy-hitter in the four-stroke outboard game, Mercury Marine’s portable FourStroke model range includes two-cylinder outboards from 2. 87. Whether performing basic maintenance or complete engine overhaul, this downloadable repair manual covers it all. Brand New Aftermarket Replacement for Mercury® 3. Even if you just need some hardware for your outboard’s propeller, give us a call. 5 liter standard Mercury Lower units - This unit is 100% OEM Compatible, Requires no modifications, ships complete with water pump and upper drive shaft. 09: 30 4-Stroke Mercury Outboard Gear Case Lower Unit. 38:1 gear ratio and access to Mercury’s class-leading offering of large outboard propellers, is the perfect combination for pontoons, larger and heavier fiberglass or aluminium fishing and pleasure boats, or heavy-duty applications. " Shift levers provide a comfortable "throw" into and out of gear, giving sport boaters complete control of their boat. Gear ratios, such as 12:21, are a measurement of the difference between the number of teeth in the crankshaft gears and the prop shaft gear. Cobra Gear Unit Case Lower Volvo Part The 5 hp Mercury outboard requires no special type gear oil. Gear ratios vary between manufacturers, between the engine models of each manufacturer and between High Thrust and regular gear ratios. Throttles have ball and spring detents which provide tactile feel and resist "creep. It is the (2) gears in the upper unit which determines the actual outdrive gear ratio . mercaftermarkets offers aftermarket and OEM Yamaha Outboard lower units. 44-inch with a 1. This chart has been assembled from manufacturer's spec sheets, brochures and websites for model years as noteds. Helpful how-to videos. 92: 25 4-Stroke: 5000-5600: 2. 07 to 1, 2 Stroke, 20 Inch - Special Order - No Returns [ More info] $895. 00, 2. 9 4 stroke, but I'm now thinking about a 2 stroke lower unit. 08 175 HP Verado 2006 Thru 5800-6400 2. ), core exchange policies, warranty, and price, so it is important to realize that the product with the lowest price isn't necessarily the best deal. In traditional two-stroke engines, the lower unit gearing tends to fall (numerically) as engine horsepower increases. And is it an expensive proposition? Want to buy a 60-75 hp. This chart shows our recorded performance numbers from the new 115 Mercury outboard engine. Mercury Racing Zero Effort Controls feature a canted handle design that really fits the hand. 6L, 3. That probably should be a discussion with your dealer if you asked for a specific gear ratio engine. 87:1 Gear Ratio 150-200HP 1979-2015 here. Heres a new question, what kind of kind of lower unit should I use for a briggs 10 hp engine? I was thinking a mercury 9. And much more, all to help you get the most out of your Mercury motor. Engine Management. I also noticed that  Complete Gear Set Lower Unit for Mercury Mariner 1. This shaft will fit all ratios. 44-inch gear case standard on Mercury 225 hp through 300 hp the new gear case: the black 5. 2:1 would raise the engine rpm by about 24 percent at any boat speed. Designed for boats with heavier loads that require power trim for bow lift. Brand New OEM MerCruiser Bravo 2 outdrive! 100% real, current model, directly from Mercury Factory warranty(1 year parts and labor, 3 years corrosion) Ships from NJ warehouse with a freight company. 1972-1990 Has 13 Spline Driveshaft The tooth count is 13-21 Up to 300 HP Mariners Warehouse Yamaha replacement lower units are the worlds best selling replacement units from Sterndrive Engineering, and come with the industries best and only 3 year no fault warranty. e. I thought that 2 stroke outboard were Higher RPM than 4 strokes. Download a 150HP outboard repair manual in seconds. The lower housing is optimised for low drag, which reduces fuel consumption even further. 4, and 2. 44:1 gearcase. Thanks. Mercury Marine has created a new gear ratio 1. 00 ratio and 15 teeth means a 1. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 150 HP outboard motor to factory specifications. hypoid 90w. The lower unit gear ratio of an outboard motor acts as a torque multiplier. Feel free to ask questions. First, you can pick a Remanufactured quality lower unit made with quality parts or you can choose Brand New aftermarket gear cases for some Mercury, Johnson, Yamaha and Evinrude Outboard Motors and Find Mercury/Mariner V6 1. I have two lower units. 00 Call to order #-— 9011G12 — GEAR HOUSING (1 required per assembly) — (X-LONG) (BLACK) 6 JAW REVERSE CLUTCH 1667-9011G12 - 1667-9011G12 - GEAR HOUSING ASSE [ More info] Any Mercury dealer can probably look it up. All units are drop-shipped out of Florida with a flat shipping fee for orders placed in the Lower 48 of $15. (0. 20, 2. The 9. and have a 2. It's truly the workhorse lower unit of the high-performance outboard market and, to date, no other engine manufacturer has designed anything as good. 4, 2. Use this chart to check your gear ratio before ordering a Mercruiser sterndrive. 75:1 Gear Ratios 1. When you are looking for a lower unit for your Mercury or Mariner Outboard You will need the seriel number. Available Gear Ratios 1. mercury outboard lower unit gear ratios

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