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The Mercury factory service manual says 18* at cranking speed for standard 150's and 22* for XR2's. If your module was just an idle stabilizer, it will have no impact on max advance timing keeping it at 17* in the high rpm range. If it was a High Speed Spark Advance module (mine had this one), it will advance the max advance timing by 6* at ...POPPET VALVE KIT | GLM Part Number: 13810; Mercury Part Number: 803062T1 : Amazon.com : Automotive. Hi, I am in need of a poppet valve for a 1985 Mercury Black Max 150 V6 I cant seem to find the kit I need. The one you listed on here dose not look like mine. Could use some help. My engine s/n is A138750.How to Replace a Mercury BlackMax Outboard Water Pump/ bass boat restoration - YouTube. Pro Wrenching. 5.42K subscribers. 19K views 3 years ago #boatrestoration …Re: Mercury BLACK MAX... I have often wondered the same thing, I have a 150 Black Max Xr2 and I've seen other motors that were the same just didn't have the Black Max xr2 logo on the side. I also agree "Nothing sounds like a Black Max!"<br />CU<br /><br />-----<br />RUNNING THE MOTOR WHILE LISTENING TO THE HORN WILL MAKE YOU MORN!!Re: What was the stock spark plug for the 150 hp mercury xr-2 black max? Nate; I got the s/n (B176785) from your previous post and it comes up as a model: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.Logged. 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 …You Are Viewing Available Prop Pitches For: Manufacturer: Mercury. Horsepower: 150 HP. Years: 1978 & Newer. Model: 150 HP Outboard. Specs: Thru Hub Exhaust & 15 Tooth Spline, V-6 Gearcase. Max RPM: 5000-5600 RPM. Where to Find Your Prop Pitch.Re: Mercury 150 Black Max Power Trim Problem Well the unit would have needed this part or some other aftermarket product but we got it out with a flex hex drive tool and had it rebuilt at an electrical alternator/starter local shop for about $65.00. Mariner, Mercury Marine Replacement Power Tilt and Trim Motor 6279 - Arco - iboats1985 Mercury Black Max 150 Service Manual Pdf When people should go to the ebook stores, search launch by shop, shelf by shelf, it is essentially problematic. This is why we allow the ebook compilations in this website. ... web view and download mercury xr2 user manual online xr2 outboard motor pdf manual download also for xr2 ssWhat is the factory ( normal ) cranking compression of a Mercury 150 Black Max? My engine has 149 to 151 on all cylinders. I have no history on the engine, except that it is said to have come off of a pickle fork boat. ... It is a 2.5 XR2 Black Max. I don't know what year it was made. There is no data plate on it, with engine number. For some ...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 ...Re: Need Help...Black Max XR2 Switch box test , disconnect the 'bias' wire, the very top left wire that links the boxes together, retest spark, DO NOT ATTEMPT TO START without bias connected BOTH BOXES should fire at the same time. If both boxes now fire the problem is a bad bias circuit in the box that ALWAYS fired. Strange, but true.Hello, It's an old boat so I thought someone could give meMercury in CFLs and fish are the best known sources of mercu Re: 1989 Mercury Black Max 175hp Idle Stabilizer. Find the terminals on the switchboxes that are jumpered together. Any other wires that are on those terminals go to either an idle stabilizer or an "advance" module. Both can be troublesome, as a short to ground will advance the timing at WOT so far it'll likely throw parts at you. I hunted all over the block and everywhere I could to find the serial Description. New high quality aftermarket powerhead rebuild kit for 2.0L V6 Mercury 2 stroke outboard motors 1984-1991 with bottom guided rods, vertical reeds, 1 or 2 piece cylinder heads, 1 1/2" main shaft crankshaft, and 3.125" bore. IMPORTANT: PLEASE INDICATE THE PISTON SIZE YOU NEED WHEN ORDERING - IF NONE IS … MIKODA 134-6456 for Mercury Trigger Compatible with

I have a 1986 mercury xr2 150hp black max. I have changed water pump, thermostats, and poppet valve. At idle my guage ready a little above cold. As soon as I open the throttle, ... I have a 1985 merc 150 xr2 black max. The over heating horn is sounding off when it is up on plane. Thermostats are new as well as the impeller.Find the right parts to fit your Mercury® or MerCruiser® engine with the online Mercury Parts Catalog. You can search by engine model or serial number to see detailed engine diagrams and part numbers. After identifying the parts you need, contact your Mercury Authorized Dealer for assistance or to place an order.The overall displacements of the 2 engines are different. The 135 is a 2 liter engine, the 175 is a 2.5 liter engine. The 2 engines share the same crankshaft, but a different block all together. If you click on this picture below, i'm attaching the specs on the 2 engines so you can see the numbers.We offer flat rate shipping for $6.99. Just give us a call Monday through Friday from 9:00 AM until 6:00 PM EST at (877) 388-2628. Enhance your outboard's performance with Mercury outboard carburetors and kits from Wholesale Marine. Quality parts for reliable engine function and smooth operation.NGK BUZ8H. V-300 (3.4L) USA. 5611648 & up. 33-13686 2. NGK BU8H. 33-14103568. NGK BUZ8H. Find spark plugs for your 2-stroke Mercury Mariner outboard using the application chart from the Mercury Quicksilver catalog.

Re: 82 mercury 150. Black max is not spitting water out of the pee hole at idle If any part of the old impeller was missing it could be pluging the water flow in the motor. I always blow air from a compressior thru the motor backwards of the normal water flow before replacing the LU back on the motor. This can be done at the phole on the motor.recently the power trim system on this older boat (1987 Mercury 150 XR2 Black Max) has started to leak and the fluid is a milky red indicating water in the system. Since the water is brackish I want to drain the system asap and get the water out. The leak is at the top seal of the reservoir on the right side where the two metal pieces come ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Buy JETUNIT Stator For Mercury 174-5456 Outb. Possible cause: 150 black max 2.0 xr2 (not a mercury racing motor - late 80s) 150 xr2 2.