THE OUTSTANDING, 25 HP PORTABLE. Yamaha's F25 is still the lightest 25-horsepower outboard on the water—two stroke or four stroke. Its portable design and class-leading power-to-weight mean 25 horses can boldly go where they've never gone before. Jons. 14-foot aluminum fishing boats.1. Mar 22, 2016. #1. I have a 90 horse Mercury 2 stroke outboard and I am getting compression of 45-50 lbs of compression on all 3 cylinders and I would like to know if the gasket is blown or maybe rings. My friend stated he was in the water and the boat just shut off and he had to have it toad into shore. Please advise if anyone as any input ...Mercury Outboard Compression Nissan Outboard Compression Suzuki Outboard Compression Tohatsu Outboard Compression Yamaha Outboard Compression Related Links Enter the Forums Mariner Forum Directory Mariner Outboard Forums Mariner Outboard Parts ... Stroke Switch Tach Tank Temp Test Throttle Troubleshooting Used …Mercury DVA (Peak Reading) Voltage and Resistance Chart HP Year Serial# Ignition Part Number Stator Trigger Read Ohms DVA Low SpdHigh Spd High Spd Low Spd High Spd Read Ohms DVA 4 1 CYL 1972-1975 3296137-A855096 336-4516 Green to Engine Ground (DVA only) 2100-2300 (a) 170-190 (b) 180-400V Points Brown & White N/A N/A 4-20 2 CYL 1972-1989 ...

This process could be a quick, inexpensive, non invasive solution to your compression reading low if that's the case. On cylinder to cylinder differences, some use 10%, others 10 psig, others 15%, and others 15 psig for a max deviation cylinder to cylinder for a number. I think the manual for that engine said 10 psig max difference.

2001-2005 Mercury/Mariner 2.5HP thru 225HP Repair Manual. 2001-2001 Mercury/Mariner 50/60 4-Stroke Repair Manual. 2001-2002 Mercury/Mariner 115HP EFI 4-Stroke Manual. 2002-2007 Mercury 40/50/60 HP 4-Stroke Repair Manual. 1965-1989 Service Manual Application: 2 hp To 40hp 2 Stroke 1 & 2 cylinder engines.On a 4 stroke engine, most mechanics and dealers will perform a leak down test, to see how much pressure escapes over a set period of time. On a 2 stroke engine, a …

Here you can buy a Yamaha 15 hp 2 Stroke Outboard Engine Short Shaft with a manual starter and tiller control at a low price. ... 2-cylinder. 2-beat: Displacement (cc) 246: Compression ratio: 6.8: Power (hp) fifteen: Bore x stroke (mm) 56 x 50: Range max engine speed: 4500-5500 rpm: Ignition system: Cdi: Purge:Mercury OptiMax 200 is a two-stroke DFI (Direct Fuel Injection) engine. It is a sturdy, reliable engine made of strong alloys. It has been providing the best quality for a decade now. Mercury started making the OptiMax engines in 1995. The 200 has a V-6 3.0L engine. The engine's best specification is its hole-shot acceleration. This allows a ...Inlines are before my era of expertise,have worked on them but not near as much as the mercury hi performance outboards,normally on most 120 to the 130 range is a really healthy stock motor,the small twin cylinders will have upwards of 150lbs,(popcorn poppers!)Below 100lbs is at the border line of not enough to start and run efficiently on merc inlines,omc's often only have 90lbs!April 19, 2015 at 2:44 pm #14276. The type and model is what matters in an outboard's compression readings. Not necessarily the hp or size. Some of the 9.5's had 65-75 lbs when new. The late 80's 200 hp looper motors only had about 85-95 lbs when new. Some outboard designs will read well into the mid hundreds.

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Data on the Mercury 2-stroke range has been retained on this page as a reference source: this reflects 2006 production, after the withdrawal of carburetted V-6 models. ... 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 ...

Replace the plugs and let it sit for a few days. Start the motor to burn it off then re-do the compression test. That might free up the rings and get you some compression. Option 2: Get a 1 gallon jug, mix a gallon of gas/oil to ratio in the jug. Pour a enitre can of Seafoam in there.Compression Test 101. 12-03-2016, 11:49 PM. In a different thread townsend had mentioned a compression test, which had me thinking. If you were to google "how to perform compression test", for every link that provides instruction there are just as many conflicting procedures. Some say ground the plug cap, some don't.Two-stroke 15-horsepower Mercury outboard motors require a 50:1 fuel-to-oil mixture. However, not all 15-horsepower Mercury outboards are two-stroke engines; many newer models are four-stroke designs.For swept compression ratio, instead of using the stroke, use how far the piston travels above the exhaust port. I use a 10cc syringe and rainwater. You'll need the piston with a ring in the top groove. Carbon must be cleaned from the head of the jug, otherwise carbon will throw off the measurements.HYDRAULIC SYSTEM TROUBLESHOOTING CONDITION OF TRIM SYSTEM PROBLEM Trim motor runs;... View and Download Mercury 225 EFI service manual online. 3.0 Litre Work, Electronic Fuel Injection. 225 EFI engine pdf manual download. Also for: 250 efi, 3 liter work 225 efi, 3 liter work 250 efi.There is NO serial-to-year cross-reference chart for 1997 and later motors. Mercury has never really used model years for much of anything other than "sales tools" in dealerships. We WILL need your serial number to look up correct parts. Arranged by Horsepower. 4 - 6 HP 7.5 - 9.9 HP 15 - 25 HP 30 - 40 HP (2-CYL) 40 (4-CYL) - 50 HP2002 Mercury Outboard 150 hp Salt water series 2 stroke engine. Pressure test was performed with hot and cold engine using two different tester kits. One fr...

The below considers a basic two-stroke outboard motor and what to service each year. Remove Propeller & Inspect propeller and shaft for damage and straightness. Remove lower unit & gearbox oil, Inspect for water in oil and excess metal on gearbox plug. Grease all fittings, cables, prop shaft, mounts, and driveshaft.If your are still unsure of your engine year, search for your model number on the Johnson 1980-later serial number year chart located here. 1969-1979. The actual year is found in the model number, not the serial number. For example, 150TXL 78 is a 150hp engine from 1978. 65ESLR 72 would be from 1972. Pre 1969.7 Reasons You Should Avoid Selling Your Car to Nearby Junkyards. Did you know that every year around 27 million vehicles around the world reach the end of their life and are. 2005 Mercury Mariner Service Repair Manuals for factory, Chilton & Haynes service workshop repair manuals. 2005 Mercury Mariner workshop repair manual PDF.model year chart for mercury outboards models 30 - 40 hp (2-cyl) ... the "1234567" part of it when looking at the chart below * model type chart . m: rope start ... oil injection : os: offshore model : short & long: both short & long models : efi: fuel injection : tr: tracker decals : trmm: tracker by mercury decals : 4-s: 4 stroke : bel ...Propeller Information Charts. 10. Mercury/Mariner 40 HP (3 Cyl.) 10. Mercury/Mariner 50 HP (3 Cyl.) 11. ... Compression Check. 43. Trim Tab Adjustment. 43. Analysis. 44. ... Mercury Marine Four Stroke Outboard Limited Warranty. 11. Year Limited Warranty against Corrosion. 12.Re: MERCURY 115 HP INLINE 6 CYLINDER COMPRESSION test readings, opinions please. Compression test need to be done with the throtal in the WOT position and the motor should be turned over 3 to 4 times on each cylender. From the readings posted at 3 revs everything looks good as they are all lest that 10 percent overall diffrence.

For a general number scale for compression. Two-stroke engines should be somewhere between 100-120 PSI per cylinder. Then four-strokes are going to be somewhere between 150-210 PSI! This is where the throttle position comes in. On say a 250 HP Yamaha four-stroke. If you do a compression test, (click here to learn how to perform a compression test.

Jul 23, 2022 · And when a head gasket wears out, it automatically causes poor compression in the cylinder. 4. Carbon-Clogged Piston Rings. The clogging of piston rings with carbon is another common cause of a low compression reading in your engine. Plus, the outboard motor or your boat goes through a constant combustion cycle. E-TEC Direct Injection with stratified low RPM combustion mode. Alternator Output. 133 Amps Total / 50 Net Dedicated. Steering. Remote (Tiller accessory) Trim Method. Trac-1 Power Trim and Tilt. Shaft Length - in (mm) 20 (508)Of course, the 3/8″ fuel line will work for any of the outboards. But most smaller outboards have fittings or quick connects on them that are set for a 5/16″ hose. It's basically the standard hose for the smaller engines. Like we said in the beginning, the 3/8″ line is required on anything that is larger than a 115 HP engine.Written by ppguide Boat Outboard. As a rule of thumb, the weight of outboard motors ranges from 22 pounds up to 1260 pounds. The average weight within each outboard category is as follows: Portable (2.3-20 HP): 29-130 pounds. Midrange (25-100 HP): 130-400 pounds. High-performance (115-600+ HP): 370-1260 pounds.6 Cast Aluminum (Use with GM Engine Code 4XY) 7 Flat Head. 8 Forged Aluminum, Recessed Head. 9 Starboard. 10 Port. 11 .010 (.25 mm) Oversize. 12 No longer available - order from Seaway (800) 332-0803. Find standard & oversize pistons for your Mercruiser stern drive using the application chart from the Mercury Quicksilver catalog.Tohatsu 2-strokes are world famous for their reliability, terrific-horsepower-to-weight ratios and top-of-the-line performances! This in-line 3-cylinder outboard provide all of the extra features you want and need without compromising Tohatsu's well-known quality.I'm looking to purchase a new boat with a 2002 200hp Optimax with roughly 490 hours. I have compression info. Compression by cylinder. #1 - 108 #2 - 108 #3 - 110 #4 - 120 #5 - 112 #6 - 108 I haven't been able to track down definite specs, but one related thread suggested "normal" operating range being from 90-110 psi. I questioned this given ...

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Mercury Outboard Headquarters. 2014 Mercury 250 PRO XS 443 Hours Low hours, runs great, most hours are at idle (see spec chart pic) Click here for pictures! 2007 Mercury 250 PRO XS. 202 Hours. $8,900 ... $3,200. 2005 25HP Johnson. 20 inch shaft, Tiller Handle. $2,000. 1986 Mercury 45 HP. Classic 50, compression 130 psi all cylinders. $ 1,600 ...#1 Hello all, I have a new-to-me 2004 25 hp 2 stroke Mercury engine that seems to start and run well. During a cold engine compression test, the cylinders both hit exactly the same at 100lbs. My question is: What should the compression number be? This engine is very clean with very minimal use.Place your engine’s throttle in the neutral position. 4. May sure the key is not in the ignition. 5. Using your torque wrench with a spark plug socket, carefully remove each plug. 6. NGK spark plugs come pre-gapped. If you would like to check the gap, you can do so with a gap gauge.Mercury Outboard Serial & Model Number Guide. Knowing the features and year of your Mercury outboard can help with ordering Mercury outboard parts and Mercury outboard repair manuals . 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.The 2 stroke, 25 hp Mercury outboard requires a 50:1 ratio, this is roughly one pint of 2 cycle oil, to six gallons of fuel.Mercury Outboard Ratio Forum Topics. Mercury Outboard Parts Powerheads Mercury Propellers ... 4-Stroke Bracket Cable Carburetor Code Color Compression Cooling Crankshaft Cylinder Dealer Diagram Drive Electric Exhaust Flywheel Fuel Fuel Pump Gasket Gauge Gearcase Impeller Jack Plate ...115-175 HP Engine Outboard Comparison. Reset. Filter. Scroll right to see all of the products available. Click on the picture to select the ones you want to compare, then click the green "Filter" to compare. "Reset" to start again. 250+ HP. 200-225 HP. 115-175 HP.May 1, 2016 · I have been told that Mercury doesn't publish compression numbers. I know that the factory service manual doesn't mention numbers. At least I cannot find them, the manual is disorganized somewhat. The Seloc book give a few random numbers that are not set in stone and the lowest is a 4/5 HP at 90 psi. Most are around 120. Jason. Marine Mechanic. 24,583 satisfied customers. I have a 60 hp mercury 2 stroke outboard (2004). motor runs. I have a 60 hp mercury 2 stroke outboard (2004). motor runs fine in gear at 2800 rpm, but at any rpm above that motor will shut down. If it is not in gear … read more.NOTE: Mercury DOES NOT Use Model Years For Parts Lookup. 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. So if your serial number is "0 1234567" you would use only the "1234567" part of it when …Like the other said, verify compression test and buy with confidence. Scott Jones Re: Need advice on Mercury 250 Pro XS 2 stroke [Re: Ranger Guy] #13860508 01/25/21 05:27 PM: Joined: Jun 2017. ... There are millions of Mercury 2 stroke XS's in the world. Parts will continue to be produced! (OK, I made that number up but I bet there's about ...

Messages. 4,845. Mar 10, 2011. #2. Re: How much does my 50 hp merc weigh? Depending on the model number and whether standard gear casing or Bigfoot, from the manual Specs section, 205 to 219lbs. To get an eyelet or not, how much is the engine worth to you? Gerry.I have a 1991 Mercury Black Max 135 hp V-6 2- Stroke outboard. Under 2500 RPM, it is "missing" a little. Above that, it runs perfect. Motor has low hours and compression is good. Several mechanics tha … read more2. Route speedometer tube from swivel tube around lower yoke and push into junction. After insertion of speedometer tubes into junction, pull on each tube to verify that they are locked into junction. View and Download Mercury 150 EFI service manual online. Electronic Fuel Injection,. 150 EFI engine pdf manual download. toland herzig funeral homes and crematory inc. obituaries Hi I have a 1999 Merc 2 Stroke 9.9HP that was under river water for 7 days. It was not running when it went under. ... Mercury & Mariner Outboards . Poor Compression 9.9HP Merc 2 Stroke. Thread starter Luv_Fishin; Start date Aug 25, 2010; L. Luv_Fishin Recruit ... Poor Compression 9.9HP Merc 2 Stroke Ahoy, Rick. zaxbys net chef There is NO serial-to-year cross-reference chart for 1997 and later motors. Mercury has never really used model years for much of anything other than "sales tools" in dealerships. We WILL need your serial number to look up correct parts. Arranged by Horsepower. 4 - 6 HP 7.5 - 9.9 HP 15 - 25 HP 30 - 40 HP (2-CYL) 40 (4-CYL) - 50 HPPage 429 NON-BIGFOOT GEAR HOUSING 4-Stroke Models MERCURY/MARINER 25, 30/40, AND 45/50 4. Disconnect shift shaft by un-snapping retainer to lower clip and sliding retainer to the left. Retainer Lower Clip 5. Make a scribe line showing alignment of trim tab to gear case and remove trim tab screw and washer. weather in henderson nv 10 days Mercury Outboard Serial & Model Number Guide. Knowing the features and year of your Mercury outboard can help with ordering Mercury outboard parts and Mercury outboard repair manuals . 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. port aransas offshore wave forecast MODEL YEAR CHART. THRU 1996. Mercury did not publish model year information for 1997 & newer outboards. The year is now normally noted on the serial number sticker. NOTE: Mercury DOES NOT Use Model Years For Parts Lookup. This Chart Is For. Reference Only, Since Many Aftermarket Parts Manufacturers DO List Parts By Year. 6pdt 1977 - 2008 All 2 cylinders less than 70 HP 10 9.9 HP & 15 HP (2 cylinder) 9.9 HP -15 HP 4 stroke after 2001 6 for 88 HP {90} & 40-50 HP, 2 cylinder (1993 & later) 112 HP {115} a 60 HP, 3 cylinder (1985 & later) 12 voltage reg. kit 70 HP & greater, including sea drives is recommended. A System Check Tach or 2" gauge is required All E-Tech 40 HP ... weather in norwich ny 10 days Our free guides offer a step-by-step instructions for performing 100-hour service on a 2-stroke or 4-stroke Mercury outboard. ... Oil Capacities & Filter Chart. Gear Lube Capacities Chart. More Suzuki Resources. 4-Stroke Engine Specs ... spark plugs and compression, Mercury fuel system maintenance, lower unit maintenance, grease points, and ... mint mobile deprioritization MODEL YEAR CHART. THRU 1996. Mercury did not publish model year information for 1997 & newer outboards. The year is now normally noted on the serial number sticker. NOTE: Mercury DOES NOT Use Model Years For Parts Lookup. This Chart Is For. Reference Only, Since Many Aftermarket Parts Manufacturers DO List Parts By Year.bigjohn1. posted 03-18-2005 08:31 AM ET (US) Two dealers have told me the only difference in the two lines (aside from the different color graphics) is the saltwater series has a stainless tilt tube - and it is about $50-$100 more. Also the Mariner line of Merc, which are simply Mercury engines with gray cowels, used to market the "Marathon ... john hagee prayer line Taking a Reading with a Compression Gauge. Holding Throttle Wide Open. After the engine has run and is at normal operating temperature, insert the compression tester into the spark plug hole in any of the cylinders. When you are ready to begin the test, hold the throttle wide open. ascender parent portal aledo Nov 17, 2016 · Evidence of rust or water on the spark plugs could also be an indication of a blown head gasket. compression test. Here's how to do a compression test on your Mercury outboard 2-stroke engine. Or download a repair manual instantly here. paea end of rotation exam Written by ppguide Boat Outboard. As a rule of thumb, the weight of outboard motors ranges from 22 pounds up to 1260 pounds. The average weight within each outboard category is as follows: Portable (2.3-20 HP): 29-130 pounds. Midrange (25-100 HP): 130-400 pounds. High-performance (115-600+ HP): 370-1260 pounds. taxes broward county Mercury Manuals; Outboard Motor; 9.9 TwoStroke; Mercury 9.9 TwoStroke Manuals Manuals and User Guides for Mercury 9.9 TwoStroke. We have 2 Mercury 9.9 TwoStroke manuals available for free PDF download: Operation, Maintenance & Installation Manual ... Mercury 9.9 Bigfoot 4-Stroke ; Mercury 9.9 Command Thrust ...60 amp / 756 watt (Belt-Driven) Recommended fuel. Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum. Recommended oil. Mercury FourStroke Oil 10W-30. Engine protection operator warning system. SmartCraft Engine Guardian. Compatible with SmartCraft digital technology. Yes.