Stock 2003-2004 GP 1300R Waverunner Avg. Speed 64.5 mph @ 7100-7120 RPM
 

Description of Parts RPM Top Speed
R&D GP1300R Ride Plate
Part #: 122-13000
7100-7120 66.5 mph
R&D GP1300R Ride Plate Trim Pads
Part #: 122-13001
7100-7120 66.5-67 mph
R&D GP1300R Aquavein Grate Kit
Part #: 112-12002
7100-7120 67 mph
R&D GP1300R Pump Shoe Seal Kit
Part #: 162-00000
7100-7120 67 mph
R&D/Solas 13/19 Concord Impeller
Part #: 132-01319
7150 67-67.5 mph
R&D GP1300R Anti-Cavitation Cone
Part #: 162-12002
7150-7170 67 mph
R&D GP1300R D Plate Kit
Part #: 332-12000
7200 67.5-68 mph
R&D GP1300R Head Kit
Part #: 412-13045
7320-7330 69-69.5 mph
R&D GP1300R Free Flow Exhaust Kit
Part #: 332-12001
7330-7380 69.5-70 mph
R&D GP1300R E.F.I. Fuel Control Unit
Part #: 802-13001
7330-7380 69.5-70 mph
R&D GP1300R Power Stack Air Filter
Part #: 200-13100
7330-7380 69.5-70 mph
R&D GP1300R Reed Valve Stuffer Kit
Part #: 272-12000
7330-7380 69.5-70 mph
R&D GP1300R Pro Series Sponson Kit
Part #: 122-13100
7330-7380 69.5-70 mph
R&D GP1300R VTS/Drop Nozzle
Part #: 162-13000
7330-7380 69.5-70 mph
 

Total:

$2720.95

Parts/Kit Overview

The R&D Yamaha GP 1300R Stage 2 Kit was developed to have noticeably increased horsepower and top speed over the Stage 1 Kit. The increased compression ratio over Stage 1 will require the additional fuel the R&D E.F.I. Control Unit delivers, and the R&D Free Flow Exhaust will be necessary to reduce water resonator back pressure. Increased throttle response, acceleration, and top speed are significantly noticed! The R&D GP1300R Stage 2 Kit retains great reliability and is 92-Octane pump gasoline safe.

  • The R&D GP 1300R ride plate is extended and re-angled over stock to reduce porpoising while adding top speed. The R&D GP 1300R ride plate is the only aftermarket design to dominate in Offshore, National, and World Championships, and to be used and endorsed by Factory Yamaha racing teams for 5 years!

  • The R&D ride plate trim pads are redesigned and extended over stock to reduce porpoising while adding top speed performance. Smoother high speed cornering is also significantly enhanced.

  • The R&D aquavein intake grate kit will substantially reduce cavitation, increase overall handling dramatically, and add a 3 to 4 mph average top speed in choppy water conditions!

  • The R&D pump shoe sealer kit was developed to quickly and easily fill the large casting pockets left in the Yamaha GP 1300R’s pump shoe inlet. Installing the R&D pump shoe sealer kit and resealing the pump shoe will reduce low and high-speed cavitation, which will increase overall handling!

  • The R&D/Solas 13/19 Impeller replaces the O.E.M. 4-blade impeller with a sleeker, better performing 3-blade design! Improved low-end response and increased top speed performance of 1 mph plus!

  • The R&D Anti-Cavitation Cone was developed to reduce low speed pump cavitation, which will increase acceleration and pump efficiency.

  • The R&D GP 1300R D-Plate was designed to replace the O.E.M. Catalizer system with a simple bolt on part. The R&D Catalizer Removal Plate increases overall performance, allows you to use your choice of oils (many types of PWC oil will harm the O.E.M. catalizer) and increase top speed!

  • The R&D GP 1300R Cast Aluminum Variable Chamber Cylinder Head Kit was developed to raise each individual cylinders compression ratio to a safe level with more power and increased RPMs. The R&D heads run safely and detonation free on 92-Octane gasoline. The R&D V.C. Heads are girdle kit optional. Part # 412-12000

  • R&D GP 1300R Free Flow Exhaust is a required kit with higher horsepower output engine kits! Reduces water resonator back pressure and heat! Adds a great performance sound.

  • The R&D GP 1300R E.F.I. Fuel Control Unit was developed to deliver increased fuel volume to areas in the fuel map where lean conditions exist. The E.F.I. fuel control unit is mandatory on Stage 2 and up kits. Dyno and water testing have confirmed a significant boost in low-end power on all kits.

  • The R&D GP 1300R Power Stack Air Filter Kit is designed to assemble on to the front of the O.E.M. air plenum box. The R&D Power Stack adds bottom and mid range power performance while increasing engine RPM’s.

  • The R&D GP 1300R Reed Valve Stuffer Kit will increase air velocity through the intake system, producing increased throttle response and acceleration.

  • The R&D GP 1300R Pro Series Sponson kit incorporates an industry first, 15 position adjustable design, which will allow more precision blade and backing plate adjustments. The best sponson kit available for a GP 1300R.

  • The R&D GP 1300R VTS/Automatic Drop Nozzle System is completely adjustable to suit any type of riding style or conditions. The system offers an adjustable automatic nozzle drop for smooth cornering, and allows the O.E.M. VTS (quick shift) to be used to adjust nozzle positions in the O.E.M. 5 degree increments while straight line riding! This is an industry first and a must have part for a GP 1300R!

NOTE: The R&D Anti-Cavitation Cone will reduce overall pump cavitation, which will create greater low and mid-range pump thrust, which increases acceleration. Fine tuning to the steering nozzle angle adjustment can be done by lowering the steering nozzle angle by one degree down from the standard 90 degree (straight) position. This will help keep the GPR driving forward and flat under hard acceleration.

NOTE: R&D offers a high performance cooling kit for the GP 1300R, which will add an additional 1/2 inch water line. The R&D cooling kit comes complete with a billet aluminum cooling strainer block, precut water line, brass fittings, through hull fitting, weld mount fitting, and clamps. The R&D high performance cooling kit is a great addition to any level of performance package, and will help keep the GPR engine temperatures down to safe levels producing better overall performance and adding reliability! Part # 660-12000

NOTE: For a full ten plus horsepower gain across the entire RPM range with an incredible boost in low end acceleration and performance, update the 03-04 GP1300R with the 2005 GP1300R header pipe section and R&D Exhaust Power Sleeve! More horsepower with reduced detonation! The 2005 Yamaha GP1300R O.E.M. header pipe section is part # 60T-14712-10-94. The R&D 2005 Yamaha GP1300R Exhaust Power Sleeve is part # 332-13000.

NOTE: For improved pump hook up and top speed performance gains, update the 2003/2004 GP1300R to 2005 GP1300R parts and specifications! Install the new 2005 Yamaha GP1300R Large Hub (75 mm) Pump along with the new R&D Solas 14/20 Dynafly Impeller and R&D Anti-Cavitation Cone! Yamaha’s new large hub pump part # 6B6-51315-00-94. R&D Solas 14/20 Dynafly Impeller part # 142-11420. R&D Solas 14/20 Dynafly Impeller part # 142-11420. R&D Large Hub Anti-Cavitation Pump Cone part # 162-16000.
 

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