Piston & Ring Set for Sea-Doo 4-Tec Supercharged GTX 4 Tec SC/RXP SC 420890244: Watercraft Superstore
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    $208.65

    Piston & Ring Set for Sea-Doo 4-Tec Supercharged GTX 4 Tec SC/RXP SC 420890244

    Piston & Ring Set for Sea-Doo  4-Tec Supercharged GTX 4 Tec SC/RXP SC 420890244
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    $208.65

    Brand: SBT
    SKU #: 700SB107
    Shipping Weight: 1.50 pounds
    Quantity in Basket: None



    SBT Sea-Doo jet ski pistons are high quality, high strength pistons. Our standard pistons are comparable to others premium pistons - anodized on the top surface for better heat resistance and surface strength.
    fits 420890244

    2007 150 Speedster 215 SCIC
    2009 150 Speedster 215 SCIC
    2009 150 Speedster 255 SCIC
    2010 150 Speedster 255 SCIC
    2011 150 Speedster 255 SCIC
    2012 150 Speedster 260 SCIC
    2007 180 Challenger 215 SCIC
    2008 180 Challenger 215 SCIC
    2011 180 Challenger 215 SCIC
    2012 180 Challenger 215 SCIC
    2007 180 Challenger SE 215 SCIC
    2008 180 Challenger SE 215 SCIC
    2009 180 Challenger SE 215 SCIC
    2011 180 Challenger SE 215 SCIC
    2012 180 Challenger SE 215 SCIC
    2009 180 Challenger SE 255 SCIC
    2010 180 Challenger SE 255 SCIC
    2011 180 Challenger SE 255 SCIC
    2012 180 Challenger SE 260 SCIC
    2012 180 SP 260
    2007 200 Speedster 215 SCIC
    2010 200 Speedster 510 SCIC
    2011 200 Speedster 510 SCIC
    2012 200 Speedster 510 SCIC
    2012 210 Challenger 260 SCIC
    2011 210 Challenger SE 430 SCIC
    2012 210 Challenger SE 430 SCIC
    2012 210 SP with Tower 430 SCIC
    2011 210 Wake 430 SCIC
    2012 210 Wake with Tower 430 SCIC
    2007 230 Challenger SE 215 SCIC
    2009 230 Challenger SE 215 SCIC
    2009 230 Challenger SE 255 SCIC
    2008 230 Challenger SE 430 SCIC
    2011 230 Challenger SE 430 SCIC
    2012 230 Challenger SE 430 SCIC
    2010 230 Challenger SE 510 SCIC
    2011 230 Challenger SE 510 SCIC
    2012 230 Challenger SE 520 SCIC
    2009 230 Challenger SP 215 SCIC
    2007 230 Challenger Wake 215 SCIC
    2008 230 Challenger Wake 430 SCIC
    2011 230 SP 430 SCIC
    2012 230 SP with Tower 430 SCIC
    2009 230 Wake 215 SCIC
    2009 230 Wake 255 SCIC
    2011 230 Wake 430 SCIC
    2011 230 Wake 510 SCIC
    2010 230 Wake SE 430 SCIC
    2010 230 Wake SE 510 SCIC
    2006 Challenger 180 4-TEC
    2005 Challenger 180 4-TEC SCIC
    2014 GTI 155 SE
    2012 GTI Limited 155
    2013 GTI Limited 155
    2014 GTI Limited 155
    2012 GTI SE 155
    2013 GTI SE 155
    2012 GTR 215
    2013 GTR 215
    2014 GTR 215 SCIC
    2012 GTX 155
    2013 GTX 155
    2014 GTX 155
    2008 GTX 215 SCIC
    2009 GTX 215 SCIC
    2012 GTX 215 SCIC
    2013 GTX 215 SCIC
    2006 GTX 4 TEC Limited
    2003 GTX 4 TEC Limited SCIC
    2004 GTX 4 TEC Limited SCIC
    2005 GTX 4 TEC Limited SCIC
    2003 GTX 4 TEC SCIC
    2004 GTX 4 TEC SCIC
    2005 GTX 4 TEC SCIC
    2006 GTX 4 TEC SCIC
    2010 GTX iS 215
    2011 GTX iS 215
    2007 GTX Limited
    2014 GTX Limited 215 SCIC
    2009 GTX Limited iS 255
    2010 GTX Limited iS 260
    2011 GTX Limited iS 260
    2012 GTX Limited iS 260
    2013 GTX Limited iS 260
    2014 GTX Limited iS 260
    2012 GTX S 155
    2013 GTX S 155
    2007 GTX Wake
    2007 GTX Wake 215 SCIC
    2008 GTX Wake 215 SCIC
    2008 Islandia SE 430 SCIC
    2005 RXP
    2006 RXP
    2008 RXP 155
    2007 RXP 215 SCIC
    2008 RXP 215 SCIC
    2009 RXP 215 SCIC
    2004 RXP SCIC
    2010 RXP X 255
    2011 RXP X 255
    2009 RXP X 255 SCIC
    2012 RXP X 260
    2013 RXP X 260
    2014 RXP X 260
    2005 RXT
    2006 RXT
    2007 RXT 215 SCIC
    2008 RXT 215 SCIC
    2010 RXT 215 SCIC
    2011 RXT 260
    2012 RXT 260
    2013 RXT 260
    2014 RXT 260
    2011 RXT aS X
    2009 RXT iS 255
    2010 RXT iS 260
    2011 RXT iS 260
    2012 RXT iS 260
    2009 RXT X 255
    2011 RXT X 260
    2012 RXT X 260
    2013 RXT X 260
    2014 RXT X 260
    2006 Speedster 200 4 Tec SCIC
    2005 Speedster 200 Twin 4 Tec SCIC
    2007 Speedster Wake 215 SCIC
    2008 Speedster Wake 310
    2008 Speedster Wake 430 SCIC
    2006 Sportster 4 Tec
    2005 Sportster 4 Tec SCIC
    2006 Sportster 4 Tec SCIC
    2012 Wake 155
    2013 Wake 155
    2014 Wake 155
    2009 Wake Pro 215
    2010 Wake Pro 215
    2011 Wake Pro 215
    2012 Wake Pro 215
    2013 Wake Pro 215
    2014 Wake Pro 215
    Piston to Cylinder Clearance:
    The piston size plus the clearance equals the final bore size. For the recommended clearances by make and model, see Table 1. The cylinder first should be bored to within 0.002” of the final bore size. The remaining 0.002” should be removed with a 400 grit cylinder hone. The honing process should be controlled such as to leave a 45 degree crosshatch pattern on the cylinder wall.

    Port Chamfering:
    Once the cylinder is honed to the final size, all of the ports in the cylinder wall should be chamfered with a file or chamfer tool. The chamfered edge should be cut at approximately a 30 degree angle around the entire port. The cylinder should then be honed with a 400 grit flex hone to apply a uniform finish and to re-establish the 45 degree cross-hatch pattern.

    Cylinder Cleaning Process:
    Clean cylinders in warm soapy water using a firm plastic brush (such as a tooth brush), then dry, and immediately lubricate with 2-stroke oil. Honing grit tends to reside in the crosshatch and must be scrubbed out. An extremely clean cylinder free of grit is critical in order to avoid “drag marks” and other damage to the cylinder wall after assembly.

    Setting the Ring Cap:
    Place the piston ring in the cylinder. Use the piston to push the ring approximately 5mm from the top of the cylinder in order to square the ring in the cylinder. Use a feeler gauge to measure the gap between the ends of the ring. If the gap is too small, one end of the ring must be filed. Re-install the ring and measure again to confirm the final dimension. Recommended ring gap clearances are shown in Table 2.


    Piston Installation:
    Install the base gasket (we recommend Threebond 1211 as a gasket treatment). Lubricate the wrist pin bearing with 2-stroke oil and install the piston on the connecting rod. The designation mark on the piston crown points in the direction as shown in Table 3. Install the c-clips with the open end in either the 6 or 12 o’clock position. Install the rings onto the piston. Using your hands or a ring compressor, collapse the rings into the ring grooves and install the cylinder. Torque cylinder to proper torque specifications.

    Table 1: Piston to Cylinder Clearance

    Clearance

    Application

    2 Stroke

     

    .004”-.005”

    Kawasaki 440, 550, 650, 750, 900, 1100
    Yamaha 500, 650, 701, 760, 1100, 1200

    .0045”-.0055”

    Yamaha 800, 1200pv, 1300

    .005”-.006”

    Seadoo 580, 650, 720, 800
    Polaris 650, 750, 780, 900
    Kawasaki 1200

    .007”-.008”

    Polaris 700, 1050 Seadoo 951, 800 RFI

    4 Strokes

    .001”-.0022”

    Seadoo 112 (N/A)

    .002”-.004”

    Seadoo 113 (S/C)

    .002”-.003”

    Yamaha 408, 410, 411

    .0015”-.0025”

    Kawasaki 213, 214

    .0005”-.0015”

    Honda 600, 601



    Table 2: Ring End Gap

    Clearance/Tolerance

    Application

    2 Strokes

     

    .011” +/- .003”

    Kawasaki 1100

    .012” +/- .002”

    Seadoo 800

    .012”+/- .004”

    Kawasaki 440, 550, 650
    Yamaha 500, 650, 701, 760, 1100, 1200, 800,1200pv
    Tigershark 640, 770, 1000

    .013” +/- .003”

    Seadoo 580, 650, 720
    Kawasaki 750, 900, 1200

    .013” +/- .005”

    Polaris 650, 700, 750, 780

    .014” +/- .004”

    Polaris 900, 1050

    .019” +/- .001”

    Tigershark 900

    .022” +/- .003”

    Seadoo 951/DI

    4 Strokes

     

    .015”-.021”

    Yamaha FX Top Ring

    .019”-.027”

    Yamaha FX Middle Ring

    .011”-.023”

    Yamaha FX Oil Ring

    .013”-.017”

    Yamaha VX/FXHO Top Ring

    .017”-.023”

    Yamaha VX/FXHO Middle Ring

    .004”-.014”

    Yamaha VX/FXHO Oil Ring

    .006”-.014”

    Seadoo Top Ring/Middle Ring

    .006”-.012”

    Seadoo Oil Ring

    .010”-.016”

    Kawasaki Top Ring

    .016”-.022”

    Kawasaki Middle Ring

    .016”-.023”

    Kawasaki Oil Ring

    .007”-.013”

    Honda Top Ring

    .016”-.022”

    Honda Middle Ring

    .010”-.030”

    Honda Oil Ring


    Table 3: Piston Arrow Direction

     

     

    Make

    Engine

    Marking

    Position

    Seadoo

    All

    Arrow

    Towards exhaust

    Kawasaki

    All (except 4-stroke)

    Arrow

    Towards Exhaust

    Kawasaki

    4-strokes

    Dot

    Towards exhaust

    Polaris

    650, 750, 780

    Arrow

    Towards front

    Polaris

    700, 900, 1050

    Arrow

    Towards exhaust

    Yamaha

    500

    “UP”

    Towards front

    Yamaha

    All others

    Arrow

    Towards exhaust

    Tigershark

    640, 1000

    Arrow

    Towards exhaust

    Tigershark

    770, 900

    Dot

    Towards exhaust

    Honda

    4-strokes

    In

    On the intake side