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Owner’s Manual

Prop Angle Adjustment

Raising the prop strut increases speed, but also 

decreases steering response and increases cavitation.
Lowering the prop strut increases steering response, but 

also increases steering sensitivity and decreases speed.

1.

  Remove 3 bolts and 3 nuts on the prop strut on the 

bottom of the boat. 

2.

  Slide the strut up or down to change the angle of the 

propeller in relation to the hull. 

3.

  Adjust as desired and tighten the nuts and bolts. 

Drivetrain Lubrication

Always replace the drivetrain parts when they are 

damaged or show visible wear or injury and damage may 

result.
Lubricating the flex shaft is vital to the life of the 

drivetrain. The lubricant also acts as a water seal, keeping 

water from entering the hull through the stuffing tube. 
Lubricate the flex shaft and all moving parts after every 

30 minutes of operation. Lubricate the prop shaft after 

every 90 minutes of operation.

1.

  Remove 3 nuts and 3 screws from the prop strut on 

the bottom of the boat. 

2.

  Slide the strut down out of the mount. 

Tip:

  Use paper or cloth to touch the flex shaft and other 

lubricated parts. 

3.

  Remove the flex shaft by sliding it out of the clutch, 

the stuffing tube and the prop shaft. Mark or 

otherwise note the flex shaft end in the clutch.

4.

 Loosen the set screw of the drive dog using a 2mm 

hex driver.

5

. Remove the nut, propeller and drive dog from the prop 

shaft. 

6.

 Remove the prop shaft and 2 bushings from the prop 

strut.  

7.

  Wipe lubricant and material from the shafts. Lubricate 

the flex shaft, prop strut and prop shaft using marine 

grease (PRB0101 or PRB0100).

NOTICE:  

Ensure the correct flex shaft end is inserted in 

the clutch. Failure to do so may result in damage.

8.

  Assemble in reverse order. Tighten the drive dog set 

screw on the flat spot on the prop shaft, applying 

threadlock as needed.

 

 

 

 

 

 

 

 

NOTICE:

  Running the boat in saltwater could cause 

some parts to corrode. If you run the boat in saltwater, 

rinse it thoroughly in freshwater after each use and 

lubricate the drive system.

NOTICE:  

Because of its corrosive effects, running RC 

boats in saltwater is at the discretion of the modeler.

15

EN

Summary of Contents for Rockstar 48

Page 1: ...Owners Manual Bedienungsanleitung Manuel de l Utilisateur Manuale dell Utente PRB09003 48...

Page 2: ...rnings Please read this manual for operation and maintenance instructions Register your boat online at www proboatmodels com NOTICE Meaning of Special Language All instructions warranties and other co...

Page 3: ...tery Installation 5 Antenna Tube Installation 5 Spektrum DX2E Radio System 6 Binding 7 Range Check 7 Fuel Safety and Use Instructions 8 Fuel Mixing Precautions and Guidelines 8 Fueling the Boat 8 Vehi...

Page 4: ...ere are several different propeller balancing tools available Read the instructions that accompany the propeller balancing tool as removing material from the correct part of the propeller is crucial B...

Page 5: ...ugh the antenna mount and into the antenna tube as shown 4 Install the tube in the antenna mount then secure the tube with a 3mm set screw using a 1 5mm hex driver 5 Replace the lids and clips on the...

Page 6: ...rudder moves when the steering wheel is turned left and right 8 Antenna transmits the signal to the model 9 BIND Button puts the transmitter into Bind Mode 10 ST REV reverses the function of the stee...

Page 7: ...ter and receiver if there are other compatible transmitters in bind mode within 400 feet Doing so may result in unexpected binding Failsafe In the unlikely event that the radio connection is lost duri...

Page 8: ...for gasoline Always store fuel in a cool dry location Do not allow fuel containers to come in direct contact with concrete as the fuel may absorb moisture Always responsibly discard fuel if there is...

Page 9: ...omes filled with fuel This is not necessary if the engine has been run recently 4 With the boat on a stand and the propeller unobstructed pull the starter cord in a quick continuous motion to start th...

Page 10: ...When running your boat for the first time we recommend calm wind and water conditions so that you can learn how the boat responds to your control When making turns decrease the throttle to reduce the...

Page 11: ...Attach the linkage to the control horn after adjustment NOTICE Throttle trim change may affect engine operation Carburetor settings must be set correctly or damage may result After Boating Drain water...

Page 12: ...igher Arrow to right If the idle is set too high propeller turns or too low engine does not stay running adjust the idle speed on the carburetor Engine Tuning Before making adjustments Ensure there ar...

Page 13: ...ust the spark plug gap to 0 6 0 7mm 0 24 0 27 in Install a new spark plug LOSR5017 CAUTION Do not test the spark plug near the spark plug hole or residual fuel may ignite Flooded Engine The engine wil...

Page 14: ...lean the obstruction from the water cooling system The engine and muffler have separate circulation connections 1 Disassemble and clean the water cooling system to remove blockage and prevent overheat...

Page 15: ...prop strut on the bottom of the boat 2 Slide the strut down out of the mount Tip Use paper or cloth to touch the flex shaft and other lubricated parts 3 Remove the flex shaft by sliding it out of the...

Page 16: ...e batteries Receiver switch is off Power on Receiver switch Boat will not connect after binding to transmitter Transmitter is too near boat during connecting process Move powered transmitter a few fee...

Page 17: ...amage and replace if necessary Wiring is disconnected or damaged Connect wiring repair or replace damaged parts Receiver switch is off Power on receiver switch Engine starts then stalls Out of fuel Re...

Page 18: ...overned by Illinois law without regard to conflict of law principals This warranty gives you specific legal rights and you may also have other rights which vary from state to state Horizon reserves th...

Page 19: ...for arranging return shipment of the un serviced Product through a carrier of the sender s choice and at the sender s expense Horizon will hold non compliant Product for a period of 60 days from noti...

Page 20: ...cts human health and the environment For more information about where you can drop off your waste equipment for recycling please contact your local city office your household waste disposal service or...

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