How Does the Pump Jet Work?
Design  .  Reliability  .  performance 
Picture
Components of Pump Jet
Picture
Pump Jet on outboard lower gear case
ROTOR HOUSING  
The Rotor Housing reduces entry of lines and debris which wind up around a propeller.  The entrance design prevents this from happening.  The design also allows for the service of the drive train as it would be with a standard propeller. Typically, objects larger than a golf ball cannot enter the Pump Jet.
ROTOR  
The Rotor is designed to move water through the pump.  Most debris can be flushed out of the Pump Jet by cycling the motor into forward and reverse.  The rotor has a standard rubber hub installed for shock reduction.  Removal and replacement of the rubber hub is similar to a standard propeller.
STATOR HOUSING  
The Stator Housing is designed to produce a water jet-like nozzle.  A series of fixed blades are used to counter the rotation of the water coming off of the rotor, maximizing thrust.   The Stator screws with lock washers should be tightened to 100 in-lb of torque.
CAUTION:  Your Motor model is equipped with a "SHALLOW WATER TILT POSITION" which should be engaged to avoid or reduce having the Gear Case dragging on the bottom.

Gear Case and motor damage may occur if the GC is allowed to drag on the waterway bottom.

USE CAUTION WHEN OPERATING IN SHALLOW WATER AND ALWAYS ENGAGE THE "SHALLOW WATER TILT POSITION."
DESIGN & ORIENTATION

Forward-Looking Design
Increase in Thrust
Efficient & Techno-Advanced 
  • By orienting the Pump Jet design "looking forward," 100% of the outboard's horsepower is utilized.  Slight or no loss of boat speed.
  • The rotating action of the ROTOR on the water entering the Pump Jet contains and focuses the water jet out of the nozzle exit.  The result is improved thrust.
  • ROTOR is encased in a housing that reduces the likelihood of personal contact or injury.
  • ROTOR HOUSING is smaller than a standard propeller diameter (approximately 20%).
  • Unique, efficient, and techno-advanced design based on decades of R & D.
RELIABILITY & SERVICE

Built on Production Gear Case
Equal Fuel Consumption To Propeller
Rugged Dependability
  • Built on a production gear case with Forward / Neutral / Reverse.
  • Requires no additional servicing or special tools.  Propeller is removed.  Pump Jet is installed.
  • Equal fuel consumption at equal RPM's as compared to a propeller - through system matching of exhaust back-pressures.
  • Solid aluminum casings for rugged dependability and repair-ability.
  • Adds less than 10 pounds to overall weight of outboard.
  • Manufacturer's Warranty includes:  Manufacturer's Defect, Accidental Damage, Pump Jet Tune Up [see PRODUCTS]
PERFORMANCE & APPLICATIONS

Superior Steering & Handling
Swift Water Rescue
Underwater Obstacles
Divers, Swimmers, Wildlife
  • Delivers superior performance in both steering and handling.
  • Preferred choice of Fire / Rescue Departments for swift water rescue operations.
  • Used by U.S. Department of Defense where underwater obstacles are a concern, and to prolong the useful life of outboards.
  • Beneficial around divers, swimmers & wildlife.
  • Overall design restricts debris from entering the Pump Jet and winding around the output shaft (weeds, fishing line, nets, etc).