Mercury xr2 black max

Mercury Systems Inc (NASDAQ:MRCY) reported a 3% decline in organic earnings for the fiscal fourth quarter and announced disappointing guidance for... Mercury Systems Inc (NASDAQ:MR...

Mercury xr2 black max. Posted Over 1 Month. FOR SALE: 1994 ROBALO 18' with Mercury 150 2 L. Black Max Canvas T-Top, hydraulic steering, stainless prop. The boat has its age but it still rides good, specially in shoppy water because of this kind of heavy build tech. from the 90's, the oil injected system has been removed and it is necessary to mix oil when tanking.

Sep 13, 2004 · 5,964. Sep 16, 2004. #5. Re: mercury 150hp black max oil injection warning. I would guess the crankshaft drive gear (made of black plastic) is probably failing and the rotational sensor is not seeing the right oil pump rpm's. Pull the pump (no need to disconnect the oil lines) and pull the driven shaft. If it has black shards on it, the drive ...

Apr 3, 2010. #3. Re: Black Max 150 XR2 Stalls. Compression in all cylinders is 120+. 2 were 122. Spark appears to be at all cylinders. Limited testing ability there. Fuel is new. I emptied all old gas before initial crankup. I put some Mercury Quikleen in the tank before adding new gas.The 1960 Mercury had a more subtle attitude than its predecessors. Learn more about the changes made to the 1960 Mercury and what engines were used. Advertisement The 1960 Mercury ...Shop all 1986 Mercury Marine 150 hp XR2 Black Max parts now on NAPAonline from batteries, brakes, headlights and windshield wipers to engine, transmission, ignition and steering parts!I have a 1987 Mercury 150 XR2 Black Max and have recently started leaking oil from the power trim reservoir on the right side near top seal when trimming down only. The oil also is milky so I believe some brackish water got into the system. Because of this I need to drain immediately and fix the leak. The power trim tilt has the square pump ...Buy MERCURY/QUICKSILVER 89031A2 FUEL PUMP DIAPHRAGM @2 O/B: Electric Fuel Pumps ... As described perfect fit for my Mercury 150 black max XR2.. Read more. Helpful. Report. Derek. 5.0 out of 5 stars Works Great. Reviewed in the United States on September 13, 2021. Verified Purchase.Mercury & Mariner Outboards . plugs for a 1985 black max xr2 150 hp. Thread starter swcominc; Start date Sep 29, 2013; S. swcominc Recruit. Joined Sep 29, 2013 ... plugs for a 1985 black max xr2 150 hp BU8H. BUHW where only used from 1973-1977 . Dukedog Captain. Joined Oct 6, 2009 Messages 3,242. Sep 29, 2013 #3

Mar 2, 2008. Messages. 15,464. Mar 10, 2012. #5. Re: mercury 150 xr2 black max. The part number for regulator is 88825A 7 and it should have it own harness, if you dont have harness it should be marked on rectifier case. red to red on rectifier and yellow to either yellow stator lead. T.Re: Mercury Black Max 150 XR2 Running Rough! My best guess is the high speed charge coil in the stator. It looks like it's getting fuel, but not firing above a certain …Mercury & Mariner Outboards . plugs for a 1985 black max xr2 150 hp. Thread starter swcominc; Start date Sep 29, 2013; S. swcominc Recruit. Joined Sep 29, 2013 ... plugs for a 1985 black max xr2 150 hp BU8H. BUHW where only used from 1973-1977 . Dukedog Captain. Joined Oct 6, 2009 Messages 3,242. Sep 29, 2013 #3Mercury sold the XR2 (2L) from around 1986-1987; the XR4 (2.4L) from around 1988 to 1991; and the XR6 (2.5L) from around 1992 to 2005. Supposedly these motors have about 10% more horsepower than the standard 150’s (which I believe to be true) to satisfy the bass boating limits back around then and still categorize them legally as a 150.150 XRI is fuel injected 2.5 litre. 150 XR6 is carbureted 2.5 litre. 150 XR4 is carbureted 2.4 litre. 150 XR2 is carbureted 2.0 litre. Black Max was a name given to the first Merc V-6 and it stuck for a number of years on numerous motors from 150 - 225 hp, not sure when they dropped it but I think the name was gone by the early '90s.

i have a mercury black max,. 2 stroke, oil injected outboard 150 - 175 hp. when the boat is under load and travelling at top speed (approx 30 kots) the temerature guageshows engine runing cool then wh … read moreShop all 1987 Mercury Marine 150 hp XR2 Black Max parts now on NAPAonline from batteries, brakes, headlights and windshield wipers to engine, transmission, ignition and steering parts!Mercury & Mariner Outboards . 1986 150 hp black max xr2 water pump housing ... 1986 150 hp black max xr2 water pump housing. Thread starter Dennis G; Start date Jul 4, 2015; D. Dennis G Petty Officer 3rd Class. Joined Sep 30, 2004 Messages 86. Jul 4, 2015 #1 This is housing I just removed. Is there supposed to be a rubber …Drill down to the horsepower, serial number range and engine section to get an online inventory of original and aftermarket Mercury boat parts. We carry Mercury outboard … MODEL YEAR CHART. 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. Mercury's software. So if your serial number is "01234567" you would use only.

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STANDARD BLACK X-LONG GEAR HOUSING ASSEMBLY 9148A19. USD 2944.8 2019-01-01. $2944.8. See details Mercury Marine. Gear Housing Assembly 9148A36. USD 2991.81 2019-01-01. $2991.81. See details Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States. Featured Brands. …4,530. Apr 16, 2012. #2. Re: 150 Black Max idle too high...how to adjust? The idle is set by adjusting the intial timing. 750 RPM in gear means in the water and under normal load. On the hose out of the water an idle of 850 is recommended. The intial timing adjustment is done using the single screw located just below and to the right of the ...February 16, 2008, 03:54:21 AM. I was talking to a mechanic that works on boat motors today, and he said that the late 80's black max v6 motors were very strong and good running motors. He was also saying that even compared to todays v6 motors (same horsepower). Saying my 1988 150 black max, against a new mercury 150 that other …34. Jan 18, 2014. #1. Last summer I bought a 1989 Mercury Blackmax to replace an early 80s Johnson. The Johnson overheated and I got a sweeper deal on the Blackmax which was incredibly clean and had great compression. I brought it home and ran it on a stand. The motor needed some maintenance done such as plugs, waterpump, carbs were …Buy emp Fuel Pump Kit for Mercury Mariner 135 150 150 XR2 175 200 300 hp Replaces 89031A2 18-7812: Electric Fuel Pumps - Amazon.com FREE DELIVERY possible on eligible purchases

For good overall performance and value, the Black Max is your prop. While Black Max aluminum propellers are standard equipment on most boats with Mercury, Mariner, and MerCruiser power, they are a perfect replacement for all engine brands through the use of the Quicksilver Flo Torq II hub system.Dec 4, 2009 · Looking for specification sheet/description for this engine as I have to document/proove the hp on this engine in order to get it legal for a national powerboat class in Norway for max 150 hp engines. The 1960 Mercury had a more subtle attitude than its predecessors. Learn more about the changes made to the 1960 Mercury and what engines were used. Advertisement The 1960 Mercury ...Find Mercury 150 Hp Black Max Boat Parts on sale here with the largest choice of Mercury 150 Hp Black Max Boat Parts anywhere online. ... Mercury Mariner 135 150 175 200 Hp Outboard Flywheel Xr2 Black Max 7555a17 74787. $119.00. Cover Mercury Mariner 175hp 200hp V-200 V6 Black Max 150hp. $25.47. Mercury 150hp Blackmax Outboard Starter …The Mercury Villager uses an alternator to run electrical devices in your vehicle while the engine is running. A voltage regulator maintains a constant voltage level and is frequen... 3 Power Trim and Tilt. Download this manual. for your purchase of one of the finest outboards available. You have made a sound investment in boating pleasure. Your outboard has been manufactured by Mercury Ma-. rine, a world leader in marine technology and outboard. manufacturing since 1939. These years of experience. Mercury Mariner Outboard Flywheel 135 150 175 200 HP XR2 Black Max 7555A17 74787. Pre-Owned. $90.00. tgeorge70 (2,136) 100%. or Best Offer. Free shipping. Mercury 2.4 Black Max 150 175 200 HP Reed Block 99747A2. Pre-Owned. $50.00.Buy MERCURY/QUICKSILVER 89031A2 FUEL PUMP DIAPHRAGM @2 O/B: Electric Fuel Pumps ... As described perfect fit for my Mercury 150 black max XR2.. Read more. Helpful. Report. Derek. 5.0 out of 5 stars Works Great. Reviewed in the United States on September 13, 2021. Verified Purchase.615. Aug 9, 2016. #1. I am just looking for advice on how to check the timing on my 1987 BlackMax 200hp motor. The flywheel has the markings showing the degrees before and after TDC, but I do not see any mark on the flywheel showing where to point timing light. I know I need to attach timing light to the number 1 plug wire, with all plugs ...

i have a mercury black max,. 2 stroke, oil injected outboard 150 - 175 hp. when the boat is under load and travelling at top speed (approx 30 kots) the temerature guageshows engine runing cool then wh … read more

1987 Mercury Black Max XR2 150. Hello all, a little background on the motor issue, last year I noticed it would idle "okayish" but once I gave it throttle it would act like it was only running on one side. I had no top end power and could not get on plane. I took it home and started researching the problems.Does anyone know how much a `87 Black Max XR2 150 hp outboard weighs ?? A friend got two seized cylinders due to a fouling carb. He wants to replace it with a newer outboard. He has been thinking about a `01 Mercury Optimax 225 hp outboard. But he is abit anxious about the weight-difference on those two outboards.3,256. Sep 13, 2013. #2. Re: 1985 merc 150 hp xr2 wiring and timing. Ya really need a wiring diagram. Maybe someone on here can send ya one or knows where on tha internet ta look. If tha trigger wires don't have "yellow" tape or a "yellow" sleeve on three of tha wires ya can leave me in tha truck. This identifies which three go to which switch box.The legendary Queen frontman was once a British Airways baggage handler. Half a century ago, young Farrokh Bulsara (better known by his stage name Freddie Mercury) worked as a bagg...Yamaha Ox66 150 175 200 HP V6 Lower Unit Foot Shaft Pump 2 Stroke 1988 2007. $2,465.00 New. ---- Used. Find many great new & used options and get the best deals for Mercury Xr2 Black Max 150 HP OUTBOARD Lower Unit at the best online prices at eBay! Free shipping for many products!Buy JETUNIT Stator For Mercury 174-5456 Outboard 150 Black Max XR2,90,115,175,200 HP 398-5454A2 5454A6 9-Amp 6 Cylinder 2 Stroke 1976-1989: Stators - Amazon.com FREE DELIVERY possible on eligible purchases1987 Mercury 150 serial OB119610 CDI Voltage Regulator 194-8825K1 CDI Rectifier 154-6770 I am looking for a wiring diagram that shows the connections on a 1987 Mercury 150 that uses both a voltage regulator and separate rectifier. I am replacing the stator and trigger and decided to pull the...Feb 27, 2014. #1. Hi fellows this is my first login to this forum. I have a 1988 mercury 150 xr4 black max that runs beautifully idling and full throttle out of water with water ears on lower foot. Will crank, time you hit the starter. Let it set for hour or two and overnight you will have to spray gas in carbs to get it to crank.

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As a rule of thumb on MOST Mercury motors, 90-120 psi (621-856 kPa) is at the lower limit of acceptable compression (at least for mid-range and larger motors). Published compression specifications for these models are as follows: 4/5 hp motors Minimum: 90 psi (621 kPa) 6/8 and 9.9/10/15 hp motors Normal 115-120 psi (787-856), …Jul 31, 2009. Messages. 636. Sep 13, 2021. #1. My dad recently purchased a 1992 ProCraft 180V fiberglass fish and ski boat. It came with what I assume is the original matching outboard - a Mercury 150 Black Max. Serial number is 0D145256. Against my advice he bought it without doing a compression test nor an on the water test and they …I bought the boat/motor two weeks ago and had it out a few times already. 1987 Four Winns Horizon 190 (18.5' open bow runabout) 1987 Merc. Black Max 150hp XR2 (14" x 19pitch Prop) When I first started the boat during the water test I noticed that the tell tale stream wasn't as steady as it was on my 1994 50hp Evinrude.Re: Mercury Black Max 150 XR2 Running Rough! My best guess is the high speed charge coil in the stator. It looks like it's getting fuel, but not firing above a certain …The 1960 Mercury had a more subtle attitude than its predecessors. Learn more about the changes made to the 1960 Mercury and what engines were used. Advertisement The 1960 Mercury ...water pump (PAID LINK): https://bassproshops.vzck.net/c/2616027/603808/9453?prodsku=100250110-1259560&u=https%3A%2F%2Fwww.basspro.com%2Fshop%2Fen%2Fmercury-m...mercury 150 hp black max, xr2, no prop, good motor , been in storage !, make offer !!!!! CALLS ONLY!! , 863 712-2O67 NO E-MAILS PLEASE !!!! MERCURY 150 HP BLACK MAX XR2 - general for sale - by owner - craigslistFor good overall performance and value, the Black Max is your prop. While Black Max aluminum propellers are standard equipment on most boats with Mercury, Mariner, and MerCruiser power, they are a perfect replacement for all engine brands through the use of the Quicksilver Flo Torq II hub system.You have lots to choose from. Any 2.0, 2.4, or 2.5 V6 LU with the right length driveshaft will bolt up. Newer is better, of course, and if you replace a 4 inch lower with a 4.5, you'll need a different prop.1985 Mercury 150 HP. 150XR2. This 150 H.P. Mercury outboard motor was made for the saltwater environment. The piston displacement is 121.9. The bore and stroke are 3.12" and 2.62" respectively. This outboard has starter of the electric type and power steering as well. Your engine's RPM range is important in choosing the right propeller for a ...1987 Mercury Black Max XR2 150. Hello all, a little background on the motor issue, last year I noticed it would idle "okayish" but once I gave it throttle it would act like it was only …Yes the XR2 would rev between 5500 to 6000 compared to 5000-5500 of the standard blackmax. It is slightly ported, 200hp exhaust and jetted carbs. It will give you a slightly better performance then the black max engine if it is still in good shape. Let me know if you have further questions. Noel. ….

Buy JETUNIT Stator For Mercury 174-5456 Outboard 150 Black Max XR2,90,115,175,200 HP 398-5454A2 5454A6 9-Amp 6 Cylinder 2 Stroke 1976-1989: Stators - Amazon.com FREE DELIVERY possible on eligible purchases5,964. Sep 16, 2004. #5. Re: mercury 150hp black max oil injection warning. I would guess the crankshaft drive gear (made of black plastic) is probably failing and the rotational sensor is not seeing the right oil pump rpm's. Pull the pump (no need to disconnect the oil lines) and pull the driven shaft. If it has black shards on it, the drive ...Re: 1986 Merc 150 Black Max hard starting and overloading fuel. I would start with a carb service.Needle may be sticking causing flooding.Replace all needle seats and gaskets,soak all metal parts in carb cleaner and blow out all crevices with air gun.Check floats are floating and reset to correct height (1.6mm) 1/16".My s/n is b199956 Mercury 150hp v6 xr2 black max. Hannafarms. 08-07-2016, 11:50 AM. 351714This is the plug I removed and expected the part number 22-86036 to fit in here according to the instructions and research on the web but the fitting it to small to screw into this plug. tlwjkw.Mercury 150 V6 blackmax idles only with one bank, 3 cylinders. I have a Merc 150 v& XR2 from around 1985. Runs well in higher rpms anf full throttle but idles and starts with only 3 cylinders, one side. And I also noticed when it was run without flame arrestor that there is a small hose that comes to the lower edge of flame arrestor frame.This Mercury Head Gasket will fit all V 150 5866777 - 6042945, V 150 XR2 5866777 - 6042945 Early Style WSM 505-39. Please note: Gaskets are sold each, 2 required for this model. Please check OEM#"s below for correct application of the item Replaces OEM# 27-79583-1 At Pwc Engine, Inc. we offer top name brands including …Yamaha Ox66 150 175 200 HP V6 Lower Unit Foot Shaft Pump 2 Stroke 1988 2007. $2,465.00 New. ---- Used. Find many great new & used options and get the best deals for Mercury Xr2 Black Max 150 HP OUTBOARD Lower Unit at the best online prices at eBay! Free shipping for many products!Jul 7, 2021 · Yes the XR2 would rev between 5500 to 6000 compared to 5000-5500 of the standard blackmax. It is slightly ported, 200hp exhaust and jetted carbs. It will give you a slightly better performance then the black max engine if it is still in good shape. Let me know if you have further questions. Noel. Mercury xr2 black max, Messages. 7,474. Nov 13, 2011. #10. Re: 86' 150 XR2 Advance module. Unless you own a money tree, I suggest you back off from whatever your thought train might me and troubleshoot the engine from the ground up, one step at a time. Compression. Spark, across a 7/16 gap, on all 6 at cranking. fuel to all 6., Yamaha Ox66 150 175 200 HP V6 Lower Unit Foot Shaft Pump 2 Stroke 1988 2007. $2,465.00 New. ---- Used. Find many great new & used options and get the best deals for Mercury Xr2 Black Max 150 HP OUTBOARD Lower Unit at the best online prices at eBay! Free shipping for many products!, 6. Jul 25, 2002. #2. Re: 1982 mercury 150 v-6 head bolt torque settings/sequence. I suggest you purchase a manual....when you're as mechanically as I am - they're cheap compared to the 'rework'.... <br /><br />Hope this helps: (From the Seloc Repair Manual)<br />"Install and tighten the head bolts to Specifications in the Appendix (the specs ..., I hunted all over the block and everywhere I could to find the serial number on my Mercury Black Max 150 XR2. I finally found this. "Every Mercury outboard has a serial number label located on the transom bracket area of the engine." So, I looked for a label and sure enough I found a metal label on the port side of the transom bracket with the ..., Nov 8, 2013 · 150 black max 2.0 xr2 (not a mercury racing motor - late 80s) 150 xr2 2.0 race motor (sleeved down 2.4 block? - late 80s to early/mid 90s) this is the one with the bucket cowl with 2 air inlet vents per side 200 xr2 2.0 race motor (sleeved down 2.5 block, mid 90s on). 200 at the prop shaft according to merc and good for 7k. This was the 3 vent ... , Does anyone know how much a `87 Black Max XR2 150 hp outboard weighs ?? A friend got two seized cylinders due to a fouling carb. He wants to replace it with a newer outboard. He has been thinking about a `01 Mercury Optimax 225 hp outboard. But he is abit anxious about the weight-difference on those two outboards., Yamaha Ox66 150 175 200 HP V6 Lower Unit Foot Shaft Pump 2 Stroke 1988 2007. $2,465.00 New. ---- Used. Find many great new & used options and get the best deals for Mercury Xr2 Black Max 150 HP OUTBOARD Lower Unit at the best online prices at eBay! Free shipping for many products!, Find Mercury 150 Hp Black Max Boat Parts on sale here with the largest choice of Mercury 150 Hp Black Max Boat Parts anywhere online. ... Mercury Mariner Outboard Flywheel 135 150 175 200 Hp Xr2 Black Max 7555a17 74787. $90.00. Mercury Blackmax 150hp 2 Stroke Outboard 20 Midsection. $275.00. Mercury 150hp Blackmax Outboard Starter …, Mercury & Mariner Outboards . Removing Idle Stabilizer and new timing specs. Thread starter hkeiner; Start date Jul 14, 2010; hkeiner Lieutenant Junior Grade. Joined Oct 17, 2006 Messages ... Setting the max timing at 23 at cranking speed was the information that I wanted to confirm. Also, knowing that it is not necessary to check/tweak …, Compare Nationwide vs Mercury. WalletHub reviews both companies side-by-side to show you which is better for your needs. THE VERDICT Nationwide is better than Mercury overall, per ..., 1,557. Feb 21, 2014. #4. Re: 1987 Mercury Black Max Prop? It depends on a lot of stuff like hull, weight, what the bottom of the boat is configured like, prop type etc. Ive got a 25 pitch laser 2 and for my hull its a hunk of crap. Slips 18% and doesnt handle corners worth a damn unless I drop it 5 inches under the pad., Jul 7, 2021 · Yes the XR2 would rev between 5500 to 6000 compared to 5000-5500 of the standard blackmax. It is slightly ported, 200hp exhaust and jetted carbs. It will give you a slightly better performance then the black max engine if it is still in good shape. Let me know if you have further questions. Noel. , Mercury sold the XR2 (2L) from around 1986-1987; the XR4 (2.4L) from around 1988 to 1991; and the XR6 (2.5L) from around 1992 to 2005. Supposedly these motors have about 10% more horsepower than the standard 150’s (which I believe to be true) to satisfy the bass boating limits back around then and still categorize them legally as a 150., Feb 27, 2014. #1. Hi fellows this is my first login to this forum. I have a 1988 mercury 150 xr4 black max that runs beautifully idling and full throttle out of water with water ears on lower foot. Will crank, time you hit the starter. Let it set for hour or two and overnight you will have to spray gas in carbs to get it to crank., 3 Power Trim and Tilt. Download this manual. for your purchase of one of the finest outboards available. You have made a sound investment in boating pleasure. Your outboard has been manufactured by Mercury Ma-. rine, a world leader in marine technology and outboard. manufacturing since 1939. These years of experience., Fuel System Efficiency: Efficiency isn’t just a word; it’s a philosophy embedded in the fuel system of the Black Max 200. Its fuel management system is an orchestra of precision, extracting the maximum energy from each drop of fuel to grant you extended journeys on water. Power-Packed Features: Notable features like advanced ignition ... , 5,617. Oct 24, 2012. #2. Re: 150 mercury black max fuel problem. Fuel restriction or air leak BEFORE the primer bulb or anywhere before the fuel pump. Either will only allow the fuel pump to flow a limited amount of fuel, no where near enough to make much power. Check everything from physically pulling the fuel tank dip tube to check for crud ..., 1986 1987 MERCURY 150 hp XR2 Black max oil injected decal set made for a Mercury Outboard cowling 150hp, DECAL SET BLACK 150 1986 1987 MERCURY 150 hp L: 1150412BD L, 7150412ND L. 1986 1987 MERCURY 150 hp XL: 7150422ND XL, 1150422BD XL. 1986 1987 MERCURY 150 hp EXLPTO: 1150746 EXLPTO, 7150746 EXLPTO. 1986 …, Look at the engine as a big air pump. If is it not efficient it will show most at low speeds. Your engine has a idle stabilizer, a black box on the front top of the engine. Disconnect it and set the timing in the water where it will idle at about 750 rpm in gear. Which will equal about 1000 rpm in neutral., The 1940s Classic Mercury Cars Channel covers popular antique Mercurys from the decade. Take a look under the hood of 1940s classic Mercury cars. Advertisement The 1940s Classic Me..., February 16, 2008, 03:54:21 AM. I was talking to a mechanic that works on boat motors today, and he said that the late 80's black max v6 motors were very strong and good running motors. He was also saying that even compared to todays v6 motors (same horsepower). Saying my 1988 150 black max, against a new mercury 150 that other …, OK first put the thermostats back in. The thermostats restrict and control the amount of water around the cylinder head. If you run without thermostats the water is circulating too fast and doesn't allow the cylinder head to run at the proper temperature and doesn't allow the cooling water to take the heat from the engine., Mar 30, 2002 · Mar 30, 2002. #3. Re: Mercury 150 Black Max - What year? The 15 is a 1993<br /><br />The 150 is a 1985 web page web page. B. , Re: 1989 Mercury XR4 Black Max 150 Upgrade Capabilities My 150 HP Merc pushes my boat to 65 MPH ( GPS ) no problem and its only a 2.0 liter. Your'e boat is a little longer and heavier but its a fast hull design. 1. Get the right prop. I get the best top speed out of a 26 pitch small eared chopper with a 2:1 lower., Messages. 101. Jul 17, 2015. #1. I just purchased a 1984 Mercury black max 150hp outboard from a person I knew that had mainly spent most of its life in the garage , runs great and has even good compression on all cylinders ! My question are my boat is rated for a 200hp I have a 1997 Ranger 518svs Comanche I'm installing it on and I would like ..., The 1940s Classic Mercury Cars Channel covers popular antique Mercurys from the decade. Take a look under the hood of 1940s classic Mercury cars. Advertisement The 1940s Classic Me..., Black Max XR2 150 HP Question. My outboard is a 87 Mercury Black Max XR2 150HP. Motor starts fine, no misses while running, gets on plane fine. My issue is when I am running, motor sounds/feels like its bogged down. Will only get to around 5200 rpm, according to the owners manual I found online, 6000 to 7000 is recommended wide open …, Apr 29, 2012. #1. Hallo, I am living in the north of Germany and have a Problem with my 150 HP Blackmax. Ideling and starting is good, but between 1000 1/min and about 2500 1/min in gear the engine is. running rough. Without load everything is smooth. Compession is equal and within factory specifications., Mercury & Mariner Outboards . Oil to fuel mix ratio for a 86 Merc 150 XR2??? Thread starter vmaxjay; Start date Sep 15, 2011; vmaxjay Cadet. Joined ... The XR2 is a pretty sweet 2.0l, carbed v6 sold as a bass boat engine. You'll like how it runs if it's any where near normal. Oil mix is 50:1. Any quality TCW3 oil, yer choice., Last week, we wrote about one way to get perspective on your problems by comparing them to, well, the size of entire planets and galaxies. Last week, we wrote about one way to get ..., The Europe-only "race" XR2 was typically rated for 200hp at 7000 rpm. The 150 XR2 was a consumer steel-bore 2.0L motor sold between 1984 and 1987, rated for 150hp at 6000 rpm, a slightly higher peak RPM band than the standard 150. The 150 XR2 was aimed at the 17-18 foot bass boat market, as an "improved" 150 with some factory …, Jan 8, 2011. #1. XR2 Black Max fowls plugs. Our boat is a 1999 18 ft Triton 180 Premier. Our motor is an XR2 Black Max 150 HP. The Serial # is B176785. Our motor fowls the plugs and then it's of course hard to start and does not run really well for quite a long time of full throttle. The motor does clean the plugs or heat up enough to run well ..., Feb 21, 2010. #10. Re: 1989 150 mecury black max XR2. My 88 XR4 is a 2.4 wid a clamshell cowl. I think the difference between them is XR2 is 2.0l, XR4 is 2.4l. XR6 is 2.5l. They are all strong 150's. XR2 and XR4 came with 4 1/4 in lowers. XR6 came with either 4 1/4 or 4 3/4 in lower.