2005 Honda AquaTrax R-12X/R-12 Features

No other personal watercraft can deliver the kind of performance Honda's two-seat AquaTrax delivers, thanks to the abundant four-stroke power and race-inspired quick trim system.

Features & Benefits

New for 2005 AquaTrax R-12X

  • -Black Hull with Bright Blue and Silver Upper Deck.
  • Black Hull with Black and Silver Upper Deck.
  • New chrome 3-D turbo emblem.

New for 2005 AquaTrax R-12

  • White Hull with Bright Blue and Silver Upper Deck.

Unique AquaTrax R-12X Features

  • Class-leading performance is provided by a water-cooled IHI® turbocharger with water-cooled intercooler. The AquaTrax™ R-12X™ turbocharger produces a maximum boost of 13 psi to generate 32 percent more power than a normally aspirated engine. The turbine bearing is an enclosed, ceramic-ball design that withstands sustained high-rpm compressor operation while providing nearly vibration- and friction-free performance. Water-cooling of the turbocharger housing maintains optimum turbine operating efficiency, while the water-cooled intercooler assures a denser intake charge to provide maximum power and combustion efficiency. An electronic control unit (ECU) monitors, boost pressure, engine speed, cylinder head temperature and an engine knock sensor to manage an electronic waste gate valve that controls turbocharger boost, protecting vital engine components and maintaining long engine life.
  • Forged pistons and connecting rods are designed to withstand the rigors of turbocharging. The top piston ring land is anodized, and a chrome-plated top ring further enhances durability.
  • Unique gear-driven dual engine-balancer system virtually eliminates high-frequency engine vibration.
  • Engine-cooling water circulates through the turbocharger housing to enhance compressor life.
  • Black hulls distinguish Turbo model.

AquaTrax R-12X/R-12 Features

  • Race-inspired quick trim system for exhilarating holeshots and amazing cornering ability.
  • Hull is tuned for overall stability, top speed and precise handling characteristics.


  • Lightweight, liquid-cooled, DOHC 16-valve 1235cc dry-sump four-cylinder engine features a one-piece upper-crankcase/cylinder block engineered to withstand the rigors of marine duty. The inherently efficient, low-emissions four-stroke design consumes less fuel than a comparable two-stroke engine and meets all current CARB and Environmental Protection Agency (EPA) emissions standards.
  • Side-mounted cam chain and ultra-narrow cylinder-sleeve spacing reduce engine size and weight.
  • Crankshaft main bearings feature a micro-grooved bearing surface to improve oil retention and bearing durability as lateral loading occurs throughout a broad range of operating conditions.
  • DOHC-actuated valves use a simple, lightweight and direct cam-over-bucket design.
  • Four-valve cylinder head design with a narrow, 30 degree included valve angle creates a compact combustion chamber for optimum efficiency and power output at all rpm levels.
  • Silent-type cam chain reduces engine noise, while an automatic chain tensioner virtually eliminates maintenance.
  • Idle screw adjustment conveniently located on front side of engine for ease of adjustment.
  • Oil jets located on the crankcase main journal castings continually cool piston undersides, ensuring consistent operating temperatures and even better engine life under maximum power.
  • Honda Ignition Control System (ICS) protects the engine from abnormal operating conditions.
  • Air intake system features an intake port mounted centrally in the hull and a labyrinth airbox construction with paper air filter. Together they keep water out of the engine during normal operation and if the craft is accidentally overturned.
  • High-pressure programmed fuel injection (PGM-FI) delivers fuel at 43 psi to four injectors, each mounted in a 38mm throttle body. Fuel is delivered through four holes in each injector, producing a highly combustible air/fuel charge for maximum combustion efficiency and power.
  • The ECU provides two digital 3-D fuel injection maps for each cylinder, creating the ideal fuel mixture and spark advance settings. A sophisticated throttle sensor and advanced fuel injection mapping combine to produce smooth and linear throttle response, responding precisely to minor throttle and waste gate adjustments to maximize driveability, acceleration and drive pump performance.
  • A unique fast-idling system uses an electric stepping motor to maintain a stable idle speed when the engine is cold. An automatic fuel-enriching system is integrated into the PGM-FI module, eliminating the need for a manual choke.
  • Four waterproof transistorized direct-ignition coils integrate the spark plug cap and the high-tension lead to produce a high-voltage, long-duration spark, providing maximum performance at high engine-output levels.
  • Iridium-tip spark plugs produce maximum spark performance and minimal carbon build-up for consistent engine operation and long spark plug life.
  • Powerful, compact oil-cooled alternator contributes to the engine's lightweight design.
  • Oil pump is driven by the alternator, further contributing to the engine's lightweight design.
  • Stainless steel oil cooler.
  • Engine cooling system allows water from the jet pump to circulate through two separate circuits to cool the engine and exhaust manifold, ensuring consistent operating temperatures for each system.
  • Unique three-way coolant coupler and specially designed discharge outlet reduce engine coolant flow during idling and low-speed operation to prevent over-cooling, assuring smooth operation and low emissions. A one-way valve permits simplified coolant system flushing.
  • Dry-sump engine incorporates an oil reservoir mounted adjacent to the cylinder bank. The tank shape and location, together with a specially designed internal multi-baffle system, optimize engine lubrication under a wide variety of marine operating conditions.
  • A uniquely designed crankcase breather system featuring three breather chambers prevents oil from flowing out of the engine or clogging the breather system if the hull is accidentally overturned.
  • Water-cooled cast aluminum exhaust manifold contributes to total heat management and reduces exhaust noise.
  • Crankshaft output end is directly coupled to the jet pump drive via a rubber damper, providing shock-free, efficient power transfer while minimizing lateral crankshaft load forces.
  • Engine power and pump characteristics are carefully matched for maximum performance without the use of power-robbing gear-reduction systems.
  • Unique Honda-designed Solas 155mm jet pump with three-blade impeller is matched to four-stroke power characteristics. This proprietary Honda impeller design minimizes pump cavitation, resulting in quiet pump operation and extended impeller life.
  • Pump servicing features include easy-to-disassemble pump, driveshaft, and driven coupling, and an easily accessible driveshaft bearing grease fitting.


  • Hull design provides exceptional low- and high-speed cornering performance without sacrificing top-speed performance.
  • Dry-sump design allows the engine to be mounted low in the hull, resulting in a very low center of gravity that contributes to exceptional handling performance.
  • Sponson design further contributes to the AquaTrax's low-speed maneuverability and high-speed stability, giving the two-passenger R-12X / R-12 an even more aggressive cornering character than the three-passenger models.
  • Ride plate designed for more agility and light feel.
  • Strong, lightweight fiberglass reinforced plastic (FRP) hull and deck are joined and permanently sealed at the gunwale, providing the AquaTrax with a distinctive and attractive profile.
  • The liner-type FRP inner hull and encapsulated styrofoam increase hull rigidity more than 200 percent compared to a single-hull design.
  • The AquaTrax hull is designed to be a stable platform for mounting from deep water and to be easily uprighted in case of accidental overturns.
  • Footwell and rear deck areas have an anti-slip surface to provide sure-footed comfort when mounting, operating and dismounting the AquaTrax.
  • Forward-located large-capacity, 16.6-gallon polyethylene fuel tank is attached to the hull with rubber-cushioned hold-down straps. A two-way valve is provided to control internal tank pressure and prevent water incursion or fuel leakage if the hull is accidentally overturned.
  • Storage is available in two sealed compartments, with a 5.2-gallon front storage box located under the front hood and a 0.6-gallon compartment located in front of the rider.

Additional Features

  • Honda's lever-style quick trim system provides the fastest reaction of bow positioning with any production PWC. The quick trim system is cable-activated by pulling a lever mounted on the left handlebar, which activates a pull cable to a junction box where a push cable positions the nozzle instantly.
  • An ECU-controlled off-throttle steering system (OTS) is provided to help the AquaTrax turn in certain conditions when the handlebars are turned and the throttle is closed.
  • Honda Ignition Control System (ICS) senses low oil pressure and/or abnormally high coolant temperatures and acts to limit or shut off engine operation as necessary. If oil pressure drops below the optimum level, the ICS limits engine speed to 3000 rpm. Extremely low oil-pressure stops the engine. If high coolant temperature is detected, a warning light and audible alarm are activated. ICS also shuts off the engine after the hull is accidentally overturned.
  • The AquaTrax's selectable Limit Mode provides a lower top-speed setting, ideal for beginning riders, borrowers and rental users. The system displays "Limit Mode" on the multi-function display when activated, and can be reset with push-button controls.
  • Electronic keyless ignition system (ID mode) allows operator to select from 999 possible identification numbers to effectively deter unauthorized use.
  • Waterproof instruments feature LCD digital displays for speed, trip distance, travel time (hours) and clock; LCD analog bar graph display for engine speed and fuel level; flashing LED indicator light and audible alarm for fuel level, battery voltage, coolant temperature, oil pressure and fuel injection.
  • Self-diagnosing ECU cycles at start-up and operates continuously during operation to provide immediate troubleshooting and warning functions.
  • Operational lanyard tethers the ignition button to the operator's wrist or personal flotation device (PFD) and stops the engine if the rider leaves the vessel.
  • The fully sealed fuel system is leak-free and vapor-free, eliminating the possibility of water contamination.
  • Anti-corrosion treatments for die cast aluminum components include Alodine/Alumite chromate surface plating with an additional Superlac top-coat for exterior components, and epoxy-resin-based primer applied to coolant-exposed parts before Alodine/Alumite treatment.
  • Extensive use of stainless steel, chrome plated and zinc plated stays and fasteners.
  • Waterproof electrical couplers and spark plug/coil caps.
  • Rubber engine-mounts feature two-phase damping to simultaneously minimize engine vibration and engine shock when the AquaTrax is traversing rough water.
  • Simple and durable mechanical cable steering system directs the jet nozzle's thrust for directional control.
  • Hand-operated controls include right handlebar-mounted trigger-type throttle control operated by pulling the trigger back to increase engine speed and by releasing the trigger to return engine speed to idle; left-handlebar-mounted quick trim lever activated by pulling the lever back; sealed stop and start buttons; a reverse lever faired into the upper-left shelter.
  • Durable, paddle-type speed sensor assembly is flush-mounted on the bottom of the ride plate and provides accurate performance in all riding conditions.
  • Handlebars are equipped with a cushioning pad for extended rider comfort.
  • Seat cushion is made from urethane foam material and covered with UV-resistant marine-grade vinyl to enhance durability and long-term appearance.
  • Fire extinguisher storage is located in the front compartment.
  • Tool storage is located behind the seat, beneath the exhaust system access panel.
  • Fully sealed, maintenance-free 18AH battery.
  • 5.8 gallons of usable storage capacity.
  • Stern-mounted trailer tie-down loops provide convenient points for securing the AquaTrax during transport.
  • Transferable one-year, limited warranty; extended coverage available with a Honda Protection Plan.
  • Ownership includes one-year complimentary membership in the Honda Rider's Club of America™ (HRCA®). Benefits include: discounts, travel benefits, roadside assistance for pwc transport vehicle while pwc is being transported, one year complimentary subscription to Honda Red Rider™ magazine, access to HRCA Clubhouse Web site (www.hrca.honda.com), access online to Honda Common Service Manual. For HRCA details, call 1-800-847-HRCA.

Available accessories

  • Cover.
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