ProBoat Blackjack 55 - User Manual

Questions and Answers

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Christina WilliamsAug 1, 2025
Why ProBoat Blackjack 55 engine will not start?
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  Mitchell AllenAug 1, 2025
  There are several reasons why the engine might fail to start. It could be due to an improper needle setting (refer to the Zenoah engine manual; baseline settings are 2 turns out for high-speed, 1 turn out for low-speed), or the fuel tank may be empty, so you should fill fuel tank. Make sure you are using the correct fuel mixture (fresh gasoline mixed with Zenoah 2-cycle oil at a ratio of 32:1). A bad spark plug can also prevent the engine from starting, so consider replacing it. Finally, if the engine is flooded, remove the spark plug, invert the boat, and operate the pull-starter to remove excess fuel.
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Samantha EvansAug 10, 2025
What to do if ProBoat Blackjack 55 Toy engine starts, then dies?
- P
  portergeorgeAug 10, 2025
  If the engine starts but then dies, it might be caused by a blocked or broken fuel line; in this case, connect or replace the fuel line. It may also be caused by improper needle settings; reset needles to baseline setting, see Zenoah instructions.
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Michelle BenderAug 20, 2025
What to do if ProBoat Blackjack 55 engine starts and runs for several minutes, then dies?
- K
  Kelly HodgeAug 21, 2025
  If your engine starts, runs for a few minutes, and then stops, the issue might be related to bad fuel, so you should replace it. Improper needle settings can also cause this problem; refer to the Zenoah engine manual for guidance. Another possibility is an overheated engine, in that case check for clogs or damage in the cooling system. Finally, debris in the carburetor could be the cause, so disassemble the carburetor and clean it.

Summary

Introduction to the Blackjack 55

General Guidelines for Operation

Additional Required Items for Operation

Suggested Field Equipment and Supplies

Boat Stand Assembly

Canopy Removal Procedure

Radio System Battery Installation

Compatible Radio Equipment

Lists compatible Spektrum, Pro Boat, and JR radio systems using DSM marine technology.

Wing Installation Guide

Rudder Stabilizer Installation

Rudder Installation Steps

Propeller Balancing Guide

Fueling the Tank Instructions

Radio Range Checking Procedure

Engine Starting Procedure

Engine Stopping Procedure

Handling and Trim Adjustments

Propeller Trim Angle Adjustment

Details adjusting propeller strut for speed and handling by changing trim angle.

Clutch Operation and Maintenance

Cooling System Overview

Troubleshooting Common Issues

Hull Care and Protection

Regular Maintenance Schedule

Blackjack 55 Replacement Parts List

Flex Shaft Lubrication Guide

Product Warranty and Repair Policy

Customer Warranty Services

European Union Compliance Information

Technical Appendix and Photos

ProBoat Blackjack 55 Specifications

General

Scale	1/8
Power Source	Electric
Motor	Brushless
ESC	120A
Radio System	2.4GHz
Speed	50+ mph
Hull Material	Fiberglass
Drive System	Direct Drive
Recommended Age	14+
Type	Electric Boat
Length	55 in
Propeller Size	1.6 inches
Battery	14.8V 5000mAh LiPo (not included)