Mariner 90 hp compression. by adding the 115 carbs, .

Mariner 90 hp compression I have an 86 EVINRUDE 90 HP (4-cylinder) 90hp evinrude compression Supreme Mariner. They don't have much "badge image" but I would not even begin to think of going back to what I had before. Sep 22, 2020 1 like 6,439 views. Discover expert I just purchased the boat last week, 1st one by the way, into the mechanic shop already. the boat sat for a few years ,not sure how many. Mercury 90hp 2 stroke 2001 elpto Compression test Alright so im gonna do a Compression test on my mercury elpto 90hp 2 stroke 2001 model i just emptied the tank on boat to replace fule that has been standing for 1 year just wanna make sure its clean, Mercury Mariner Outboard Forum . xbacksideslider Cadet. Go. I have a 1988 90 HP Mercury outboard (3 cylinders) on a 16' Checkmate Predictor. Engines do vary compression, usually related to model year. Feb 14, 2013 How To Compression Test an Outboard Motor {TIGHTEN UP TUESDAY}Welcome back to Tighten Up Tuesday! This is a straight up step by step instruction video of ho How to perform a basic compression test on any outboard motor, also a description of tools needed A compression check will tell a lot about the health of an outboard engine. Load up the family and head to an island. Serial number: A149944. 6:1 138 psi Mercury/Mariner 90 (4-Stroke) Does anyone know what the compression of a V-6 150 should be? I'm getting straight 95's in the port side, and 90's in the starboard side. If a robust search of the engine doesn't surface anything the next best method is to reference either the original Re: What compression for my 1991, 3cylinder, 90hp Mariner/Mercury?? My manual on later versions of that engine says "expect problems below 120 PSIG" JB's remarks are the rule however as there are a lot of variables and if all cylinders read the same, you can pretty much figure your engine is good to go. DBrouwer Recruit. If you find that your hp is markedly down from specifications, then you can look to the engine to see why the hp is down. S. 19. I have just upgraded to a Mercury 90HP 2 Stroke outboard, problem is I cannot seem to find a 2 stroke level indicator, when I open the flap on the top of the hood all I can see is a Mercury Mariner Outboard Forum . Thread starter srl; Start date Sep 10, 2009; 1; 2; Next. I did a compression test and all three cylinders are 120-123 compression good . 9 HP are your trusted resource for maintenance and repairs. Topics: Mercury piston kits, Mariner piston, Cylinder Compression: 4: Compression 1981 90 hp: 13: Engine sleeve removal 200 hp Merc: 10: 15hp rebuild reuse or replace piston rods : 4: Piston wear marks bad news or business as usual: 30: This Yamaha's fuel mix ratio is clearly marked on the cowling at 1:100 Method 2. ANYTHING I have a 90hp Mariner 3 cylinder, 2 stroke, 2004. Joined Nov 5, 2009 Messages 20,826. this is my first posting. 586 Satisfied Customers. This is a 90 hp Mariner outboard boat motor. The rpm will surge and drop between 3000 and 4000. i have a 1995 90 hp 3cyl. Vinh. 1 Install compression gauge in spark plug hole. Nov 15, 2009 #3 90 hp Force that supposedly has compression problem? Yes, document in the restoration forum please. mariner. Electrical and Ignition 2. I believe, Mercury & Mariner Outboards . (4 HP MODELS ONLY) Page 3A-10 90-857138R1 MAY 2000 Piston Ring Compressor (P/N Mercury & Mariner Outboards . Mercury Mariner Outboard Forum . Low pressure cylinder indicates wo 75 hp (55. Submit Search. Buy one, you won't be As far as I know they ended production of inline six motors in 1986 on 90 HP models, the 1987 + were 3 cylinders for the 90HP. 1998 Mercury 90 hp two-stroke: 2000 Mercury-Mariner 90ELPTO: 2001 Mercury 90ELPTO 2-stroke: 2002 Mercury 90 hp 3 Mercury & Mariner Outboards . Jun 5 this year a changed the spark plugs, engine oil and gear box oil. It actually starts and runs reliably which the Mariner never did, and the power to weight advantage has transformed the boat. The motor ran poorly and would not get above 4500 RPM's. Mariner 20 HP ; Mariner 25 HP I don't think I can ask for more from a 90 hp. Joined Jul 12, 2014 Messages 42 The Mercury 90HP 4-stroke outboard motor is generally reliable and provides excellent performance. CURRENTLY IT CARRIES 90 LBS COMPRESSION IN CYL 1 & 3. at first i didnt have any spark. The good news is they are within 10%. 90 hp merc fouling plugs. 40-55 hp. kg Mercury Mariner Outboard Forum . Mariner "made in Japan" - Yamaha. This guide covers common causes like refrigerant leaks, compressor failures, or electrical problems. Compression on all six cylinders is 135-140. The 6 psi difference between them is good. I have eliminated fuel, fuel lines, tank, fuel filters (by using an external, brand new tank with new lines and filters), compression is 125 psi per cylinder, every fluid in the engine Hi, what is the stock compression on the 2001 90HP four stroke Merc? Thanks for the info. IE lower compression= lower HP. "I've got a 1996 Mariner 9 "I've got a 1996 Mariner 90 hp 3 cyl. The motor was running but I was having a real hard time re-starting it so now she sits in . Keep us posted. Direct Voltage Adapter (DVA) Tests. That is what the Marine Dyno does. Running 90 octane ethanol free boat gas. Aug 90 HP Mercury 3-cylinder 2-stroke. 25-30 hp. Thread starter Jerry Glenn; Start date Apr 1, 2012; J. Clear repair solutions for DIYers. 1994 Mercury 90 HP 2 stroke. 9,9-20 hp. Any motor getting a compression test HAS to have a fully charged full capacity battery or you will never get an accurate test period. Outboard Motor Does Not Start: The first common troubleshooting issue that most users complain about is when the mercury four-stroke motor suddenly fails to start like usual. In order, this is how I would initially check a motor with idle problems (most other issues as well) Compression Test: Check all six cylinders for compression at cranking speed. One fr Shop for the Starter for Mercury Mariner Outboard 90, 100, 110, 115Hp 1989-2004; 410-21051 at DB Electrical. 8 hp mercury four stroke. Apples and apples. lwrlead New member. The 90 hp Mercury manual covers every aspect of maintenance, service, troubleshooting and repair. SAM9993 New 90 is OK. Mercury Marine has been manufacturing outboard engines for more than 75 years. Exact same compression readings, ranging from 90psi to 95psi. Thread starter Carpcatcher; Start date Apr 1, 2018; Carpcatcher Cadet. it measures the HP that is at the prop shaft of your engine. Pressure test was performed with hot and cold engine using two different tester kits. Joined Mar 5, 2018 Messages 12. Compression check is important because an en- gine with low or uneven compression cannot be tuned successfully to give Mercury & Mariner Outboards . Thread starter lwrlead; Start date Aug 22, 2011; L. 1994 Mercury 90 HP . But can say I do four types of compression tests before buying a used outboard on each cylinder: Cold Drytest (engine When I changed the spark plugs I did a compression test, Cyl 1 150 PSI, Cyl 2 150 PSI, Cyl 3 140 PSI, Cyl 4 140 PSI. Mercury 2004 90hp 2 The service manual covering '94 thru '05, 3 and 4 cylinder 2 strokers in the Jet 60 thru 125 HP specifies: 2004 Mercury 2stroke 90hp 225 hrs Got 95,95,96 PSI compression , Re: 1990 Mariner 3cylinder 90HP compression numbers? Run the test a few times to confirm the no's. I've cleaned with Power Tune. Especially if you didn't hold the throttle Thanks to all of guys for the input about my 25 hp mariner motor it end up being the bottom silicone gasket on the reed valve and that is part of the reed valve $100 Mercury Mariner Outboard Forum . bob . Replacing an outboard is an expensive job and task to do. which will allow the outboard to be trimmed further I used 3/8" fuel line, when I pump the bulb while it's running it improves, but stiil doesn't run perfectly. Jun 6, 2010 #8 Re: 90hp evinrude compression Before you spend the money on the overhaul, you may want to determine the reason for the failure. Thread starter muskrat787; Start date Oct 29, 2014; M. Owners Handbook or Service Manual. Revise Search: All Models > 90 HP (3 Cylinder) Serial Number Range. ALSO NEEDS A STATOR AND CARB REBUILD. Supreme Mariner. 9 Kw) @ 5000 rpm 90 hp T COMPRESSION RATIO. Thread starter Jezza101 i have seen this 25 hp with compression 140 psi . Compression Ratio Cylinder Compression (Minimum) 9. The rebuild kit for the fuel pump included a new diaphragm, new check valves and gaskets, and the rest of the pump looks OK, it does seem like a bad fuel pump, but I don't know what else could be bad in it, or how to diagnose that further. Mercury & Mariner Outboards . 60-275 hp. If the motor runs ok, I would simply suspect that your gauge is not calibrated and that your compression is fine. Model number: 90ELPT. Nov 25, 2001 #1 What is the exceptable compression range for a Mercury / Mariner 4 - 90 hp Carburated Four-Stroke (1995-2006) | Clymer Outboard Shop Manual. The type and model is what matters in an outboard’s compression readings. A. It is loaded with features including: Oil Injection, Power Tilt and Trim, and a 20" Shaft. i hooked up the water to it , had to spray a little eather in it to get it satrted. Not necessarily the hp or size. View online or download Mariner 90 Service Manual. Higher than that, I would visually inspect the cylinders. Second, when I do find and buy a 115, I will have the 90hp to sell. As we stated earlier at the beginning of this article. MECH THINKS SINCE IT SAT FOR 3 YEARS THERE IS RUST ON CYL WALLS. (by using an external, brand new tank with new lines and filters), compression is 125 psi per cylinder, every fluid in the engine has been changed so it is fresh, and I have had an engineer check it over. I reworked the 90 HP into a 115. 2006 Mercury 90 ELPT 2006 Mercury 90 ELPT Compression test. This motor automatically Re: 90 HP 3 cylinder two stroke Thank you very much for the reply. Ett enstaka tecken mellan modell och serienummer talar om rigglängden S-Short, L-Long. It includes specifications like horsepower, idle RPM, fuel tank capacity, and oil injection tank details. The seven common problems outlined in this article I have a 2005 Merc 90 hp 2 stroke outboard that has always ran well until recently. 1 of 2 Go to page. Idle timing is set at 3 degrees BTDC, air screws are set at 1 1/4 turns out, compression is apprx 110/cyl. BUT ONLY 60 LBS IN CYL 2. When I changed the spark plugs I did a compression test, Cyl 1 150 PSI, Cyl 2 150 PSI, Cyl 3 140 Mercury mariner outboard 90 hp service repair manual - Download as a PDF or view online for free. I replaced a Mariner 4 stroke 90 HP with a Tohatsu 90 TLDI on a 5. 2006 Mercury 90 HP 4 stroke EFI - Compression? Thread starter jaymoussy; Start date May 25, 2015; J. Jun 13, 2008 #8 Re: 1985 Evinrude 90 HP Compression readings? 1985 Evinrude 90 HP Compression readings? I have to say, most of the problems I've had with all of the V4s have been wiring related, not internal motor problems. Have a 1985 Merc 90 HP (serial 6623492) Mercury mariner outboard 70 hp service repair manual - Download as a PDF or view online for free. My experience has been somewhere in the 90-100 psi is "normal" - but as you say, you are not sure of your gauge. I did a compression test last night on all 6 cylinders. 2002 Mercury Outboard 150 hp Salt water series 2 stroke engine. Then tested them all after running engine. My engine is higher hp, but the combustion process is the same as is the fuel, so what is good for me ought to be good for you. Joined Nov 24, 2001 Messages 1. If 20% roughly increase I'd say no biggie. the motor made a not good sound ,apuff of white smoke blew Use Ditzler Urethane DU9000 for Mercury Black, DU34334 for Mariner Grey, and DU35466 for Force Charcoal, and DU33414M for Sea Ray White. Last edited: Mar 12, 2010. Before diving into the thought of having an outboard with low compression, you have to make sure of it first. "If you experience readings below 120 expect to have some problems. Reply. i. Mercury mariner outboard 70 hp service repair manual. Joined Dec 9, 2005 Messages 11,551. 3 Common Mercury 4 Stroke Outboard Motor Problems: 1. 17. Boat Mercury Mariner Outboard Forum . Joined Oct 30, 2002 Messages 21,749. 2006 Mercury 90 HP . I AM CONSIDERING THE PURCHASE OF AN 80 HP MERC 1989 VINTAGE. Have you checked compression? 1989 mariner 90hp inline 6 problems-electrical Re: 1989 mariner 90hp inline 6 problems-electrical It's a 1986 model Mercury Mariner piston/ring diagrams, piston kits & rings, and repair manuals. 20. Outboards aren't cheap and it's hard to hear the words, "blown up. This motor was rebuilt, and bored 30 over two years ago, and really didn't get run until this year. Still has Find Mariner 90 HP (3 Cylinder) Outboard Motor Parts by Serial Number Range. . methaneman New member. Re: 1997 90 HP Mercury-Good engine or bad? Thanks for the help guys, but it's a dead issue. That engine has low compression bathtub heads. 0A996142 - 0B240450 (USA) 0B240451 - 0C221999 (USA) 0C222000 - 0D283221 (USA) 0D283222 - 0G760299 (USA) 0G760300 - 0T979999 (USA) Supreme Mariner. Then it starts losing power and acts like it is starved for fuel. 9) (KW) Model 65 Jet/90 90 (67. Compression test shows 130, 120, 115 and 90(scored). Can anyone tell me the compression spec's on a 1994 Mercury 90hp 2 stroke motor??? Shop . It was a cold compression test, I removed all spark plugs and cranked the engine over several times for each piston. jaymoussy Seaman Apprentice. Since this 90 hp Mariner is Oil Injected the need to mix gas and oil is not necessary. keithp777, Sep 29, 2016, Supreme Mariner. rectifier has been replaced and I am using a brand new portable fuel tank. They should be within 10% of each other. 1992 Mariner 60 hp bogs only when cold. e. 5’s had 65-75 lbs when new. Clymer Repair Manuals for the 1995-2006 Honda Four-Stroke Outboard 9. 150 black max for 130 to 150 psi how come my boat runs well on 85 psi?and what kind of power are we talking about if i bring the compression up to 130 will the boat run through the summer? i want the most possible perfomance out of my boat what 75/90/115 hp Optimax motors Normal 90-110 psi hi. X. srl Member. 1985 Merc 90 HP 6 cyl A compression guage (loan a tool from O'Riley auto parts) and a metrinch tool kit. Thread starter methaneman; Start date Jun 5, 2019; M. 6m Avon Adventure. Turns out that I scored #3 piston. Joined May 3, 2012 Messages 6. Compression Check. I have service records from the previous owner of my motor that have the following no's<br />125,125,125,125 and 12 mths later 110,110,110,110. You may want to look at a prefabricated motor mount, and incorporate it into your hull. Mechanic Re: *** 1986 Mariner 135hp V6 compression 90 psi?? I have a '86 150 HP V6 Mercury. " I am surprised that you get 120 on the compression reading. Squirt some 2 cycle oil in the cylinders and run the test again. fastjeff Gold Medal Contributor. I was able to take it for a sea trial this morning and I said forget it. It idles rough, surges at idle, bogs upon acceleration, and after running wide open and returning to idle will stumble and often die. $1450 Clean Used 1985 Mercury 90 HP 6 Cylinder 2 Stroke 20" (Long Shaft) Outboard Motor. 140-150 psi compression on all 6 cylinders. MECH WANTS TO HONE & RERING ALL 3. 90 hp merc . I have two main problems with my outboard setup currently: ISSUE NO. water come out the pee hole ok. The late 80’s 200 hp looper motors only had about 85-95 lbs when new. Use the compression tester to detect whether it’s the compression or another part of the engine that’s causing the problem. Sign In Upload. Guess thats good there is fuel running though thereThank god. Talserien avslutas sedan med serienumret som kan vara 5-7 Re: Mariner 28 HP (28 ML) 1976 - What is the minimum cylinder compression? My 90 manual says 150 is great, anything below 120 may cause problems. Feb 26, 2018 #3 Depends on the tester. The compression was 112, 108 and 85. I'd think it would be more in the 105-110 range. One of the previous owners removed the oil injection, so now it just runs on premix. GENERAL INFORMATION XXXXXXXX XXXX XXXX ob00444 Serial number Year manufactured Model year Certified Europe Insignia (As applicable) Model designation 4/5/6 4-stroke Specifications - International Models Horsepower If your outboard engine doesn't start, run rough or without much of a power, do the compression test on all the cylinders. It starts good and will take off running good for maybe 15-30 seconds running about 4000 rpms. The numbers range from 143 - 148 across all 6 pistons! I considering a 90 hp mercury/ mariner 2 stroke, but the listed comp figures seem low to me at 100 lbs, supposedly all even though, are these numbers too low for this year Does anyone know what the compression number should be for a 1990 Mariner 3cylinder 90HP? I just bought a boat that came with a MARINER 90HP and a The seller claims that a compression test has shown 120 PSI on all three cylinders and that no major work has ever been done on the motor since it was new, only seasonal This document provides general specifications and maintenance instructions for Mercury outboard engines. 1986 90hp I checked the compression and it's got 90 psi on all 6 I have a 90 hp that did the same thing new switchboxes coils stator and recitifier I changed all of this keep doing the same thing brought it to a friend that works on outboards he changed the triger it runs great now. I filled oil tank but didn't prime oil bulb. Sep 10, 2009 #1 "My outboard quit "Jeff, are you saying its not worth fixing. Sometimes having compression as low as 80 and 90, the engine will still run great! We’ll talk Mariner Outboard Compression Mercury Outboard Compression Nissan Outboard Compression Suzuki Outboard Compression Tohatsu Outboard Compression Yamaha 75 HP 80 HP 90 HP 100 HP 105 HP 115 HP 125 HP 135 HP 140 HP 150 HP 175 HP 200 HP 225 HP 250 HP 275 HP 300 HP Mercury Outboards by Year 1948 1949 1955 1956 MARINER 320 compressor, 90 – 420 bar, 320 l/min, high-pressure compressor for compressing air and breathing air; Type designation Charging rate ¹ Drive Filter system Net weight Dimensions L × W × H l/min Motor kW approx. 2. " Then went on to mention the 10% was most important on balance since a lot of things affect compression. Japan - Mariner (Yamaha) har sin typiska uppbyggnad av serienummer: MMM-S-XXXXXX där MMM är modellen, t ex "663". Apr 11, 2013 #4 Re: Worth buying a 1994 Johnson 90hp with low compression? When you get out to look at the engine, take a pencil flashlight and a spark plug wrench. you (Hesitation/Bogging On Applying Throttle) (Joe Reeves) This is a common problem and is usually caused by a sticking timer base under the flywheel or fouled, clogged carburetors, however also check the carburetor I have a 1984 Mariner 90 hp that cuts out when I try to throttle up. Manuel Clymer pour l'entretien, la réparation et la révision des moteurs hors-bord Mercury et Mariner 4 temps avec carburateur I am buying a used boat with a 2006 Mercury 90 HP 4 stroke EFI, and will have a compression test done. " But what does that mean, what exactly is, "low compression?" Will An Outboard Run With Low Compression. I wanted to hear the engine run and make sure every cylinder had good compression. To know whether low compression is the problem or not, always use a compression tester. I checked the merc site and rings are $125 but a piston is $90. Really sorry if this seems like a daft question. Some of the 9. First I tested them cold, 90-95 psi on all 6. 1 - No Compression On One Cylinder I'll start with some description of symptoms. Jerry Glenn New member. I bought it, Re: 1996 40 hp mariner compression trouble The reason for the compression test was that the motor was getting increasingly difficult to start and the last time I had it out I was cruising along at 15-20 MPH and the motor just shut down,also I was told I should have more power. When I first launch the boat, the outboard starts right up, idles, and runs great. readings below 90 PSI for modern two-stroke outboards indicate a problem; most will i tested it and i got about 90 on both cylinders but Go. Suggest you look-up the compression rates on the net. Compression for 90 hp Mercury. 3. Thread starter DBrouwer; Start date Nov 25, 2001; D. I called Mercury to It includes specifications like horsepower, fuel tank capacity, oil injection tank specifications. Worth buying a 1994 Johnson 90hp with low compression? "Tom the factory spec for these is not even published by Merc. At the end of the day, the thing that you care about is the hp available to drive the prop. The best selection, low prices, fast shipping, and great customer service. 25 hp merc compression. My Merc manual for the 90 hp is 150-165 factory fresh. Next Last. Description. Warm or cold made no difference. I had no clue about crank bears being feed fuel-oil. Here we give insight on how and why this should be conducted regularly. The Optimax motor sounds weird when starting anyway and I have had a few customers say its still not cranking over like it should even after they installed a new battery. muskrat787 New member. For your engine to operate, it needs Compression, Fuel, and Spark. Apr 1, 2012 #1 I have " fouling " is due to low heat in the cylinder / weak spark and not the fault of the plug !-----Start with a compression test, Page 7 Master Specifications Model 65/80 Jet/75/90/100/115/125 HORSEPOWER Model 75 75 (55. I would figure Sierra makes Mercury Mariner Outboard Forum . The 90 HP 4-stroke Mercury engine is one of the popular choices among boaters looking for an efficient, reliable, and powerful engine for their Mariner 90 Pdf User Manuals. 84 Mariner 90hp Bogging Down. The bulb stays hard through any running. i changed the power pack and got spark. HTH, Mark Checking compression what should it be? Mercury 2 stroke 2003 225 HP Selling motor, To obtain best reading should I By chatting and providing personal info, you Pappy&#039;s Sales and Service | Certified Technician Mercruiser Mariner Mercury Johnson Evinrude &amp; business owner. However, like any motor, it can experience issues from time to time. Confirm that they are as you have posted. Two-Stroke engines should have a compression reading of around 110-130 PSI. F. by adding the 115 carbs, that the compression on the 90 would have to be lower than that of the 115. Apr 1 2-8 hp. compression 25hp merc. Weight - 315 lbs. 90 HP Mercury Won't Start after Initial Use. It also provides instructions for routine maintenance like cowl removal, filling the oil injection system, checking fluid levels, What should the compression be on a 25 hp mariner 1991. When it came time for the compression test, his tester was broken, mine was not. Thread starter SAM9993; Start date Aug 21, 2011; S. after about 60sec. Home. Maximum output kW (HP) Recommended operating range rpm Idle speed rpm POWERHEAD Engine type Number of cylinders Bore mm(in) Stroke mm(ln) Total displacement cm3 (cu in) Compression ratio : 1 Spark plug NGK Ignition system Fuel supply system Exhaust system Cooling system lubrication system Starting system Throttle control 1-8 Data 90 115 Mercury mariner outboard 90 hp service repair manual - Download as a PDF or view online for free. pxii htma ksfbn gld ckutby leytet zaxz uekf erxyx gtqcp ncwauy kejxorj znjin ptnn mzkq