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    Mercury Trim Switch on Throttle Only Goes Up

    I have a 50 hp Mercury 2 Stroke with power trim (up/down). There's a switch on my throttle handle and one on the motor. The switch on the throttle handle is now only working when I bring it up, no longer down. However the switch on the motor works in both up/down. I replaced the switch and...
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    Officially Hate my Sport Jet 120 Motor

    I have spent more time trying to get my "free" boat right than I have actually enjoying it the few times its been right... Last night, I "fixed" my rich at warm idle issue but another issue was created that didn't exist the last outing. Background: Compression in 120 range on 4 cylinders...
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    Sport Jet Auto Enrichner - Rich at Warm Idle

    Guys, My Sport Jet 120 is running very rich at warm idle. Rebuilt carbs, fuel pump, new/tight lines, etc. Good compression. Idle mixture on carbs out 1 and 1/5 turns each, plates and cam aligned. Ohm'd the auto enrichner today and got a reading of 28. Manual says between 18 and 20 I...
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    Integrated Fuel Tank Pickup/Strainer Removal Question

    I have a Regal Rush XP with a Sport Jet 120 oil injected motor. Had fuel delivery issues and rebuilt the engine driven pump and cleaned the carbs and lines. Ran great past two runs and then last night when we were out playing (lots of sharp turns, bumps, speed, etc.) the symptoms acted back up...
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    Sport Jet 120 - Fuel Pouring out of Bottom Carb/Lacks Power

    Folks, Here's what I got, looking for direction as to where to begin my diagnostics: Sport Jet 120 on a Regal Rush XP. Ran beautifully last season after replacing the ENTIRE ignition system. Last time it ran perfect was Sept. 2012 as the season was ending. Took it out two months later for a...
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    Sport Jet 120 Ignition Switch Wiring

    My switch has failed on my ignition. The aftermarket Sierra part (mp41000) has slightly different terminal(s) and the match directions are unclear. The original has: Accessory terminal, yel/blk (c), yel/red (s), blk/yel (m), red/pur (b), blk(m). The new part has labels of: Ignition circuit...
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    Merc Sport Jet 120 Ignition Switch Wiring

    My switch has failed on my ignition. The aftermarket Sierra part (mp41000) has slightly different terminal(s) and the match directions are unclear. The original has: Accessory terminal, yel/blk (c), yel/red (s), blk/yel (m), red/pur (b), blk(m). The new part has: Ignition circuit (I)...
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    Best fender/bumper protection for jet boats?

    Was frustrated this weekend when a wake from another boater bounced my jet boat into a dock as we were about ready to leave. Nicked and scraped it up pretty good. Given the unique design, any suggestions on the best portable dock bumper/boat fender set up that can be stowed in the boat? Its a...
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    Sport Jet Exhaust Question

    Can someone explain the purpose of the "foam exhaust deflector", part number 823611? Mine had popped out on the bottom half and I was able to work them back in but they are deteriorated. Based on the parts diagram if you search by that part number I wonder if they could be replaced by simply...
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    Sport Jet 120 - Spark Issues - Parts Install/Test Question

    Good morning. I have a '95 Regal Rush XP with the Mercury Sport Jet 120 motor with no spark. I had the service manual and went through all of the diagnostics. Black stator was bad. Trigger good. Flywheel good (visually). Upgraded to the Mercury red stator kit and new rev limiter. Still no...
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    Sport Jet 120 No Spark - Some Troubleshooting Specs

    First, this is my first post...thank you all for the help so far posting/responding with your knowledge on the Sport Jet's. I acquired a 95 Regal Rush XP with the Sport Jet 120 motor S#0E125353. The boat has sat for the past 5 or so years. I went through it and cleaned carbs, oil injection...
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