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    1990 Black Max 175 PTT replacement odyssey

    Okay started with motor trimmed mid per trim gauge - pump verified as dead - release valve has proven useless - got a screw driver imbedded in the head but could not get it to budge - trying to get starboard transom bracket unstuck - everything I've seen on here and web talks about steering...
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    Jack Plate for a 1990 Mercury black max 175

    Okay since I have to pull the motor checked out jack plates. My shaft puts the cavitation plate at or just above bottom of transom with prop at 21 inches. It's mounted on a 1990 Ranger 375v and performance seems good. Looked at 4 in manual aluminum Jack plate but not sure how much benefit I...
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    1990 175 BLK Max on 1990 Ranger 375v - transom bracket lower bolts

    update had to remove batteries and oil tank then the clamps holding down the gas tank and pull it forward and then could access the bottom bracket bolts. Have removed the power steering connections and still can't slide the bracket - HELP. Motor trimmed at mid level by trim gauge. Release...
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    1990 175 BLK Max on 1990 Ranger 375v - transom bracket lower bolts

    Help - replacing the PTT motor need to slide right transom bracket - alls done except lower transom bolt - do I have to pull the gas tank to get to it or is there another solution - hopefully. The bolt head on the outside turns.
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    1990 Mercury Black Max 175 2 stroke carb - trim pump is dead - need advice before proceeding

    Thanks for such well written directions. The two wire I liked was the Arco have a starter from them that works well. And the Arco comes with the relays and wiring. Thanks again. I had read my service manual and had some idea what to do but your experienced reply really helped see how and what...
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    1990 Mercury Black Max 175 2 stroke carb - trim pump is dead - need advice before proceeding

    Update - after further research found a thread on the hull truth whereby 1 - don't try an easy out you will regret it 2 - take flat head torch it and then push it into the plastic head forcing a new slot - let cool and then try to use the screw driver to release it with the new slot?? Comments...
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    1990 Mercury Black Max 175 2 stroke carb - trim pump is dead - need advice before proceeding

    Tilt and trim went out intermittently appeared to be electrical - then it quit on me while fishing luckily engine was in mid standard tilt position - powered back to my slip - tilt then worked fine. Next day tilt and trim worked fine on run out but when stopped to fish - no tilt - powered back...
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    Bad trim and tilt motor

    1990 Mercury 175 2 stroke carb - tilt and trim stopped operating sporadically - appeared electrical and checking adjusting fuse connections/also twice it stopped and then was fine at next attempt. Thought it was relays since was getting strong click on on activating at both remote throttle arm...
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    Trim gauge wiring

    I installed a trim gauge on my 1990 Ranger 375V - and it worked okay. However, at times I sensed a variation/slight fluctuation between my tach and adjusting the trim on my controller handle. I wired my console gauges all sharing the purple ignition power wire and ground from the wiring...
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    Timing on 1990 Merc Black Max Carb 2 strk 175 - hope Fast Bullet weighs in

    Thanks all - definitely a learning process - pics were irrelevant they both concerned the tilt and trim solenoids and wires to starter solenoid. Actual problem remains quick start but at excessive rpm 2500 plus. Thinking either switch box(es), throttle position sensor (if there is one) or idle...
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    Timing on 1990 Merc Black Max Carb 2 strk 175 - hope Fast Bullet weighs in

    1990 Mercury Black Max 175 Timing and wiring issues
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    Timing on 1990 Merc Black Max Carb 2 strk 175 - hope Fast Bullet weighs in

    Thanks - it's a head scratcher for sure
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    Timing on 1990 Merc Black Max Carb 2 strk 175 - hope Fast Bullet weighs in

    Engine was running before repair - exhibited symptoms of bad stator. Have replaced stator and trigger - engine started on first key turn but but at high rpm - shut down immediately - checked carbs butterflies closed - trying to set timing according to Maintence manual which says go to TDC 0...
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    2 Strk Carb 1990 Merc 175 - not starting when hot - warm - 30 min wait starts fine

    Thanks for the suggestions - went out last week - and checked prime bulb - was firm - took boat out brought it back re started no problem - out again short run came back and when I attempted restart heard an attempt to fire then the same turning over no fire - crossed my mind that maybe it was a...
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    2 Strk Carb 1990 Merc 175 - not starting when hot - warm - 30 min wait starts fine

    Motor starts fine when cold - runs great on way out - when I stop I idle her for a min or so then turn her off and on - fires immediately. Then after fishing for 1/2 hr to hr - I move she fires up and runs great stop idle for a min turn off and hit key fires up immediately - fish for 10 to 15...
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    1990 Mercury 175 outer switch box with unidentfiable wire

    My outer switch box has a wire coming in from the right hand side attaching to the 3rd from the bottom pin with a green and white wire from the left. I have found no mercury wiring diagram with any wire except the single green and white connected. Picture of switch box attached - any ideas or...
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