Pre-Mix Models. Fuel/oil ratio: 50:1 (50 parts fuel to 1 part oil) Oil requirement: - Certified TC-W3 2-Stroke Outboard Oil. - Mercury or Quicksilver Premium 2-Cycle TC-W3 Outboard Oil. - Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil. 2-stroke oil is normally added to the fuel tank when filling with fuel Joined. Aug 27, 2007. Messages. 5,268. May 17, 2010. #2. Re: Outdrive gear ratios. 1.86 means the prop spins 1 revolution for every 1.86 revolutions of the engine. If you had 2 to 1 ratio, and the engine was running 5000rpms, the prop would be spinning at 2500 rpms 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 * 2.00:1 = 27 x 32. 1.81:1 = 27 x 29. Diesel high HP (these use a special lower unit and are not very common) 1.65:1 = 27 x 32. 1.50:1 = 27 x 29 New life for old outboards your trusted source since 1999
MERCURY VERADO® RPM CHART HP/Model Years WOT RPM Gear Ratio 135 HP Verado 2007-2010 5200-6400 2.08 150 HP Verado 2006 Thru 5800-6400 2.08 175 HP Verado 2006 Thru 5800-6400 2.08 200 HP Verado 2005 Thru 5800-6400 2.08 225 HP Verado 2005 Thru 5800-6400 1.85 250 HP Verado 2005 Thru 5800-6400 1.8 225-HP: 1.75:1. (From classic Mercury two-stroke and OptiMax engines) Four-stroke engines often are designed with higher (numerical) gear ratios. This tends to help them produce more torque, particularly at low engine crankcase speeds. Some examples: HP vs gear ratio, four-stroke outboard. 70-HP: 2.42:1
If you had a 1:1 gear the torque at the prop shaft would be 368 foot/pounds at 2400 RPM. If instead there was a 2:1 gear (or drive), the prop shaft would turn at 1200 RPM and the torque on the shaft would be 919 foot/pounds. If you have a high ratio gear like a 2.0 it means the engine has to turn two times to every one turn of the prop shaft 1989 and newer 2.4 & 2.5 - 2.5 260 (10) Note: Temperatures for Merc. outboards should be in the 140-160 degree range. Gearcase interchange. All 2 liter, 2.4 liter, and 2.5 liter gearcases interchange. They won't interchange onto a 3 liter or the old 3.4 liter, both of which are unique to their size engine. (4 The 175 is the same engine, tuned for 175+ HP and has a 1.86:1 gear ratio as opposed to the 2:1 on the 150. The 175 was setup similarly, only with a 8 jack plate, ventilation plate 5.25 above the pad (I think prop shaft to pad is a little better way to measure) and it got 68 at 6100 RPM Engine RPM Chart for Proper Boat Propeller Sizing. Note: WOT (wide open throttle) measurements are made with a tuned engine, a clean boat hull, loaded with an average boat load, and the propeller clean and undamaged. Learn all about boat propeller fit with our Boat Propeller Fit Guide
Gear ratio is an important factor in selecting an outboard IF, and ONLY IF, you are trying to make a decision between an ordinary outboard and a HIGH THRUST version of the same outboard. For example, Yamaha makes two versions of its 60 HP 4-stroke, one has a gear ratio of 1.85:1 (1.85 flywheel revolutions : 1 propeller revolution) and the other. Mercury's 115 Pro XS FourStroke is designed for avid anglers and serious boaters who want the highest performing 115hp outboard available. Key Specifications HP/kW @ Prop: 115 / 86 Max RPM (WOT): 5300-6300 Cylinders/ Conf.: 4 ( in-line) 8 Valve SOHC Displacement: 2.1L/ 126ci /2061cc Gear Ratio: STD 2.07:1 CT 2.38:
Record this First Result. If your speed at 2,000 RPM was 10 knots, then: 10 x 1,056 = 10,560. Divide this result by the propeller's pitch again. Record this Second Result: if your propeller's pitch equals 12, then: 10,560 / 12 = 880. Divide 2,000 by the Second Result; the answer is your gear ratio: 2000 / 880 = 2.272727, or 2.27 to 1 (2.27:1 . Cast from proprietary stainless-steel alloys, hand-finished and zero-balanced by artisan technicians in our prop shop, Mercury Racing propellers offer the ultimate in performance and durability
Ratio Chart for Mercruiser sterndrive, alpha one generation I and alpha one generation II. Gear Chart quantity. Add to cart. SKU: Ratio Chart Category: Complete SEI-106. Description Locate your motor below. Click on the motor model to be. taken to the parts available. Kiekhaefer Mercury Outboard Motors, K Models 1940-1952. Model. Designation. Horse-power. Serial Number Range Find Mercury/Mariner V6 1.87:1 Gear Ratio 150-200HP 1979-2015 here. In stock and ready to ship. Offering discount prices on new and remanufactured assemblies for over 50 years
Mercury engineers leveraged the Mercury Racing heritage to develop this family of high-performance Direct Injected outboards. The result is an outboard family that blows away the competition when it comes to power, durability, performance and fuel efficiency. Nothing on the water today is faster or more proven than the OptiMax Pro XS Propellers are complicated, and levels of understanding vary widely. We revisit the basics and then dive deeper on propeller form, fit and function. New 1.60:1 Sport Master 300R FourStrokes. Mercury Racing announce the release of six new 4.6L V8 300R FourStroke outboard models featuring a 1.60:1 gear ratio Sport Master gearcase Gearcase Ratio 1.83:1: Gear Shift F-N-R: Steering Big Tiller Compatible Remote Tiller Kit: Trim System Power Trim: Exhaust System Through prop: Shallow water trim range (degrees) 20: Recommended Oil Mercury 4-Stroke Outboard Oil: Recommended Fuel 87 octane/up to 10% ethanol: Remote fuel tank optional Ye Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 20 Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling..
2 Stroke Outboard Fuel Mix Ratio 50:1 100:1? Finding the right mix for your outboard. 2 stroke fuel oil mix chart In this guide we step through the why it's vital to get the right 2 stroke fuel oil mix and some methods to work out which ratio to use for your outboard For a Mercury two-stroke model, 2- to 20-horsepower outboard motor manufactured before 1980, use a blend of unleaded gasoline with a posted octane minimum of 91 and Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil at a ration of 50 parts fuel to one part oil. If the motor is over 30 horsepower, then use premium unleaded gasoline.
A gear ratio of 2.5:1 means that there is a reduction, so that the prop shaft turns 0.4 times for every revolution of the engine drive shaft. A higher gear ratio (say, 2.5:1 compared to 1.75:1) has more reduction, and means a comparatively slower prop shaft and more torque at the prop shaft Mercury knew what they were doing. Not sure of the thoughts of guy that put the extra roller bearing and bushing my Mk5 prop shaft though! The Mk5 case looks, and measures identical to the Mk6 case. The Mk6 has spiral gears and a different ratio, so I'm told I'd have to use the Mk6 prop as well. Thanks Mercury V12 Verado Outboard. POWER. LUXURY. FREEDOM. Furthering the legacy of the Verado® engine family, Mercury reimagined outboard performance to deliver the ultimate luxury boating experience. Meet the most powerful, most innovative outboard in Mercury history. The 7.6L V12 600hp Verado. Find Yours › . Low Gear Ratio. The Mercury 115 has a gear ratio of 2.33:1 which provides low-end torque throughout the entire rpm range. 50 AMP Alternator
9539A5 Mercury Mariner Outboard 35-45 HP Lower Unit Gear Case 20 Long Shaft 2:1. GB618346766. $949.99 Due to prop slip the boat is actually going slower than the theoretical speed. Normally on the nature of 10 to 20% slower at top speed. This ratio is found by dividing the actual boat speed by the theoretical boat speed to get a ratio. Then, this ratio is subtracted from 1. The result is the propeller slip
40hp to 60hp. This is new Mercury power with proven Mercury pedigree built in - power to do everything well. These ultra-smooth three-cylinder outboards with big-capacity 967cc powerheads will provide you with even better acceleration and higher top speed to take you wherever you want to go This calculator is designed to give any missing value from the 5 variables needed for marine propeller calculations. They are engine RPM, prop gear ratio (normally for 1.5 to 3.0), prop pitch (the distance that a propeller would move forward in one revolution), prop slip (the efficiency of the prop, lower at high speed, but perhaps very. To get that weight to plane, Mercury needed an engine that pumped out tons of power and torque, but didn't guzzle gas. That's where the two-speed transmission—an industry first—comes into play. First gear has a 20-percent reduction in gear ratio. This leverages the engine's torque to propel these big boats out of the hole and up on plane
34460 MDS. Mercury Side Mount Control Box W/ 8' 9 Harness & 13' Cables NO KEY! $175.00. 34516 CTB-C. Outboard Marine Gauge Panel W/ 21' Harness TEMPERATURE VOLT & FUEL GAUGE. $150.00. 34515 GBP. Tracker Marine Gauge Set FUEL VOLTS & WATER PRESSURE GAUGES. $50.00 Propeller Cross Reference Chart GEARCASE YAMAHA TURBO MERCURY • Designed for Yamaha High Thrust outboards and also works well on midrange outboards using the K series (4.25) gearcase • Propellers with a 91/4 diameter are available in the Aluminum Series
The motor's gear ratio is 2.3:1. Only three gears are available on this outboard motor -- forward, neutral and reverse. The Mercury 50 hp outboard is capable of producing 5,500 to 6,000 rpm. The total weight of the outboard motor is 255 lbs. when dry and disconnected from the mounting frame gear ratio 2.42 2.27 powerful largest gear ratio in all class model df70a/ 90a df115a/ 140a df150a/ 175a/ 200a (ap and ss models) df225/ 250 df250ss df250ap/ 300ap df350a gear ratio 2.59:1 2.59:1 2.50:1 2.29:1 2.08:1 2.08:1 2.29:1 4 2019 suzuki outboard motor
DF140A. The Suzuki DF140A is light and compact while providing exceptional performance, easily giving this motor the best power-to-weight ratio in its class. An engine cover design features a large air induction port to provide maximum airflow and thus, maximum power. It's also the first 4-stroke to utilize an oil cooler, ensuring that all that. . You can change one parameter and recalculate the rest. Use the CalcT button to figure the theoretical speed from the actual speed and slip. Be sure to take a look at the Prop Slip page for an explanation of how to find your prop slip
Hi I've a mercury 60hp outboard engine and I'm not sure what mix ratio to use any advice would be appreciated. Outboard Spares Response Hi, Most 2 stroke Mercury Outboards will run at 50:1 (Thats 100ML of oil to 5 litres of Petrol) Cheer Mercury Mariner Outboard Workshop Manual 40 - 115hp 65-1990 Download Now. Mercury Outboard 2 Stroke 75-90-115HP Service Manual Download Now. 2001 Mercury 115HP 4-Stroke EFI Outboard Repair Manual PDF Download Now. 1997-2003 Mercury 75HP 90HP 100HP 115HP 125HP 2-Stroke Outboard Repair Manual PDF Download Now Eligible Mercury I.Q. Certified Boat Builder models sold to US and Canada residents will receive 5 years coverage (2 years of Mercury Limited Warranty and 3 years of Mercury Power of Protection Limited Warranty). Valid on boats purchased from July 4, 2021 through July 2, 2022 and registered by July 17, 2022 Selecting the correct prop should result in your engine running within the designed rpm range at Wide Open Throttle (WOT). Your owner's manual should include this spec—usually 5000-5500rpm for an outboard or 4200-5000rpm for a sterndrive—or your mechanic or dealer may know. Allowing your engine to under rev or over rev at WOT can result.
Yamaha Lower Unit Ref Guide 84-06+. YAMAHA Lower Unit Reference Guide Master Legend. Sterndrive Replacement Part Number and Quick Reference Guide and Application Outboard Marine YAMAHA. Find your model and year. ALSO REFER TO NOTES 1 TO 6 In design specifics, the Mercury 150hp is an in-line four-cylinder engine with a single overhead camshaft arrangement with eight valves. The Mercury has a bore and stroke of 102mm x 92mm and a low gear ratio of 1.92:1. Multi-port EFI provides a very efficient fuel delivery, ensuring it has excellent economy throughout the rev range
1667-9011J29 Gear Case Mercury 4-Stroke Outboards 75 & 90 HP lower unit. $560.00. Was: $800.00. $140.44 shipping. or Best Offer Mercury Ignition Advance Modules Information: Mercury Outdrive and Outboard Gear Ratios: Outboard RPM and Gear Ratio Chart: Mercury/Mercruiser Outdrive Gear Lube Capacities: Mercury Outboard Engine Serial Number Year Match-up: Outboard Engine Serial Number Year Match-up: Marine Wire Color Codes: Ignition Switch Wiring Diagrams: Instrument. Mercury Outboards. Horsepowers by Year. 2005 300 HP 280 HP 250 HP 225 HP 200 HP 175 HP 150 HP 135 HP 125 HP 115 HP 90 HP 80 HP 75 HP 65 HP 60 HP 50 HP 40 HP 30 HP 25 HP 20 HP 15 HP 9.9 HP 8 HP 6 HP 5 HP 4 HP 3.3 HP 2.5 HP 200
The Gear Ratio between the engine and the prop shaft. (e.g. 2:1) The Pitch of the propeller, measured in inches. (e.g. 19 Pitch) First you calculate the theoretical speed of the boat by using the following formula, with your calculator: Pitch multiplied by RPM, divided by 1056, divided by Gear Ratio, = MPH e.g.. using the figures supplied above Additionally, the optimized gear ratios and unique software mapping provide improved throttle response, faster acceleration and unbeatable stopping power. Mercury Mercury has several outboard motor models to choose from when customizing your Bennington pontoon boat, including the Pro XS 175-300hp, Fourstroke 30-60hp and Fourstroke 75-150hp Mark's Marine Inc. is a premium marine dealership located in Hayden, ID. We offer boats, pontoons, fishing boats and more from award winning brands such as Avalon, Godfrey, Hewes, Lund, Thunder Jet and Weldcraft with service, parts and financing. We proudly serve the areas of Spokane, Pullman, Coeur d'Alene, Hayden and Sandpoin Serial Number Search: Mercury Outboard Parts & Mercruiser Parts | Location Serial Numbers. for Mercury Marine Outboards and Mercruiser Sterndrives are unique sets of numbers used to identify certain objects such as Marine Engines, Boats, Automobiles, Software, etc.. In the case of Mercury Outboard Parts, Mercruiser Engine Parts, and Mercruiser Sterndrive parts it's the Serial Number that's. Outboard Propeller Chart - 1988 Mercury Outboard Manual Free Download Outboard Motor - Mercury Outboard Gear Lube Pump - Mercury Outboard Motor Diagram - Mercury Outboard 1980 20 Hp - Mercury 3.3 Outboard - Outboard Motors Oil Ratio - 1978 7.5 Mercury Outboard Wiring Diagram - Mercury Outboard 150 Hp Serial - Starting Mercury Outboards.
One issue is the 200 HP outboard segment is incredibly diverse. Mercury marine offers a V6 and V8 200, Yamaha has a 4 cylinder and a V6, while Suzuki has a new 200 4cyl. Let's take a look as best we can at each 200 outboard available and the pros and cons of the different models Find Mercury Gear Set Boat Parts on sale here with the biggest selection of Mercury Gear Set Boat Parts anywhere online. New Oem Mercury Outboard Forward Gear Set 43-44102a-5 44102a5 44102a-5. $399.99. Gear Set 187 Ratio Mercury 828701a1. $659.43. New Mercury Gear Set 43-55778a3 60-HP High-Thrust Outboard Motor Comparison. The first three are 4-strokes. The Evinrude is a 2-stroke. All meet the California Air Resources Board air pollution standards. I'm guessing the steering angle of the non-Honda motors are 30 degrees. The Evinrude is the only one in this list that isn't a 'high-thrust'-style motor
Gearcase Ratio: 2.07:1: Gear Shift: F-N-R: Steering: Big Tiller Compatible Remote: Trim System: Power Trim: Exhaust System: Through prop: Shallow water trim range (degrees) 20: Recommended Oil: Mercury OptiMax/DFI Outboard Oil: Recommended Fuel: 87 octane/up to 10% ethanol: Remote fuel tank optional: Yes: Engine Protection Operator Warning. Gearcase Ratio: 2.33:1: Gear Shift: F-N-R: Steering: Big Tiller Compatible Remote: Trim System: Power Trim: Exhaust System: Through prop: Shallow water trim range (degrees) 20: Recommended Oil: Mercury OptiMax/DFI Outboard Oil: Recommended Fuel: 87 octane/up to 10% ethanol: Remote fuel tank optional: Yes: Engine Protection Operator Warning.
To order a copy of this DVD, please visit our web site at https://bennettmarine.com/products/maintaining-servicing-your-mercury-outboard-motorLearn how to pr.. What Outboard Compression Test Results Mean. Results vary depending on whether the outboard is a Four-Stroke or a Two-Stroke. Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around 110-130 PSI. Here is everything that you need to know about outboard compression tests A special case is an outboard on a bracket. At speed, the prop runs in a hump behind the hull and the bracketed outboard can have its cavitation plate 2 higher than the bottom of the boat. The bracket manufacturer will recommend the outboard height according to the bracket shape and length. As a yacht designer and boater, I prefer longer shafts
Find the recommended OEM specs for the best engine oil for your Mercury or Mercruiser here. We have genuine Mercruiser and Mercury engine oil for sale at discounted prices when ordering online. Fast shipping from BAM Marine of Florida, factory authorized dealer since 1977 The 115 XS Pro also features a Command Thrust gearcase with a low 2.38:1 ratio that will let you run the big-boy props typically reserved for high horsepower Verado and OptiMax outboards. Specifications: Mercury Verado 350 Full Throttle Range - 5800 to 6400 rpm Configuration - In-line 6 cylinder Displacement - 2.6 liter Mercury Marine, based in Wisconsin, has been making Mercury outboard motors in two- and four-stroke versions ranging from 2.5 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. If you have a two-stroke outboard motor, you must add oil to the fuel to lubricate the engine Vintage Outboard specializes in replacement parts for Mercury, Johnson and Evinrude (OMC) outboard motors built from 1955 to 1980. Our mission is to help you repair and enjoy your older Mercury, Johnson or Evinrude outboard motor. We have a profound appreciation for the quality, craftsmanship and engineering that went into creating these useful. OEM # MERCURY LOWER UINTS STK# Price Details; 1647-9148T84 V6, 2.0L To 2.5L, 1.87 Ratio BW22 $1,595 1647-9148T8 Calculate Propeller Slip: RPM div by GEAR RATIO x PITCH div by 1056 = Theoretical Speed. Then you divide the customers actual (gps) speed by the Theoretical speed to get propeller efficiency. For Example: 5500 div by 2.07 x 20 div by 1056 = 50.23mph. If customer speed is 44.00mph the propel