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mercury sport jet 120

  1. A

    Boat Stuff Sport jet 120 XR rudder, nozzle, stator assembly parts for sale

    Hello jet boaters - I have the following parts available for sale. All in excellent condition. Rudder kit. Part # stamped on casting: 831241C. This part #supercedes to 831241A1. Reduction Nozzle. Part stamped on casting: 831253C. This part #supercedes to 878111A1 Includes...
  2. R

    got a 94 Bayliner reflexx with 90 mercury sport jet engine need impeller 15 to 17 pitch for high altitude ?

    Hi , my name is Rickey Thomas . I live in the Colorado Rockies . recently bought a bayliner Reflexx jet boat and its got a mercury 90 3 cylinder engine . runs great on the hose . took it to the water and it just seems to just plow thru the water . 10 mph max . doesnt feel like its...
    • Rickey Thomas
    • Thread
    • jet boat jet boat racing mercury engine mercury sport jet 120 mini jet boat river racing
    • Replies: 5
    • Forum: General Discussion
  3. L

    Mercury Sport Jet 120 problems with new starter

    I'm having a hard time dianosing a problem with the starter on my Mercury Sport Jet 120 xr2 (year 2000). The starter was having a hard time turning the engine: it would turn it slowly, often getting stuck. Since then, I have replaced the battery, the power cables, the solenoid and the starter...
  4. K

    1996 Dynasty Storm Jet Boat - Broken Engine

    I have a 1996 Dynasty Storm jet boat that has a 120hp Mercury 2-stroke engine that needs to be replaced or repaired. Does anyone know where I can buy a replacement engine or if it is even possible to get it repaired? My boat guy said it is irreparable, but I'm really hoping that he's wrong!
    • Kate
    • Thread
    • 1996 1996 dynasty 1996 dynasty storm 2 stroke dynasty dynasty jet boat dynasty storm jet boat engine jet engine mercury sport jet 120
    • Replies: 7
    • Forum: General Discussion
  5. L

    Mercury Sport Jet 120 flushing: doesn't look right

    I just bought a Sugar Sand Heat jet boat, it has a Mercury Sport Jet 120xr2 manufactured in 1999. Since I will use it in salty water, I ordered the Mercury Flush Kit, which is a $28 hose adapter. I tried to flush it following the manual: disconnected the cold water intake (looks like a short...
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