HPI Racing Savage 21 12840 Instruction Manual

HPI Racing Savage 21 12840 Race Kit manual cover
Pages 68
Year 0
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HPI Racing Savage 21 12840 Race Kit Specification

The HPI Racing Savage 21 12840 Race Kit is designed for enthusiasts seeking a high-performance, durable, and customizable remote-controlled monster truck. At the heart of the Savage 21 is a robust Nitro Star 21 engine, providing substantial power and acceleration for competitive racing and off-road adventures. The kit features a highly durable TVP (Twin Vertical Plate) chassis constructed from high-grade aluminum, ensuring rigidity and stability while minimizing weight. The suspension system includes oil-filled, adjustable shock absorbers and independent double wishbones that deliver exceptional handling and adaptability on diverse terrains.

The drivetrain is equipped with a durable 4WD system that ensures consistent power distribution and traction, coupled with all-metal differential gears for enhanced longevity and reliability. The Savage 21 kit includes heavy-duty dogbones and axles, further reinforcing its capacity to handle extreme conditions. The included 2-speed transmission enhances speed and torque, while the adjustable slipper clutch provides additional protection to the drivetrain under stress.

The kit allows for extensive customization, with numerous hop-up options and interchangeable parts to tailor the performance and appearance to specific preferences. The robust roll cage and impact-resistant bumpers protect the vehicle during aggressive driving and collisions. The racing kit excludes the radio system, servos, and fuel, offering flexibility for users to select components that match their specific needs and preferences. With its combination of power, robustness, and versatility, the HPI Racing Savage 21 12840 Race Kit stands out as an ideal choice for both amateur and seasoned RC racing enthusiasts seeking to build and customize a high-performance monster truck.

HPI Racing Savage 21 12840 Race Kit F.A.Q.

How do I properly break in the engine of the Savage 21 12840 Race Kit?

To properly break in the engine, follow these steps: Start with a rich fuel mixture, run the engine at a low speed, and avoid full throttle during the first few tanks. Gradually lean the mixture as you proceed through 5-6 tanks of fuel. Always allow the engine to cool between runs.

What should I do if the Savage 21 does not start?

Check the glow plug for proper operation, ensure the fuel is reaching the engine, and verify that the carburetor settings are not too lean. Also, make sure the pull start or electric starter system is functioning correctly.

How can I improve the handling of my Savage 21 on rough terrain?

Adjust the suspension to a softer setting by changing the shock oil to a lower viscosity and using softer springs. You may also consider adjusting the ride height for better stability on uneven surfaces.

What maintenance should be performed after each race?

After each race, clean the chassis, check for any loose screws, inspect the drivetrain for wear, clean and oil the air filter, and verify that the suspension components are in good condition.

How do I tune the carburetor for optimal performance?

Adjust the high-speed needle valve for maximum RPM at full throttle and the low-speed needle for a smooth idle and quick acceleration. Always make small adjustments and test the engine's response after each change.

Why is my Savage 21 overheating?

Overheating can be caused by a too-lean fuel mixture, insufficient cooling due to debris in the cooling fins, or operating in extremely hot conditions. Ensure the engine is properly tuned and the cooling system is clean.

What is the correct way to store the Savage 21 after use?

Clean the vehicle thoroughly, drain the fuel tank, and run the engine until it stops to remove residual fuel. Store the car in a cool, dry place, and ensure the electronics are powered off.

How can I increase the durability of my Savage 21 during intense races?

Upgrade to heavy-duty parts such as suspension arms, driveshafts, and bumpers. Regularly inspect for any signs of wear and replace components as needed to prevent failures during races.

What should I do if the Savage 21 has poor acceleration?

Check the clutch shoes and springs for wear. Ensure the transmission is shifting correctly and that the slipper clutch is properly adjusted. Also, verify that the engine is tuned for optimal performance.

How can I prevent fuel leaks in my Savage 21?

Regularly inspect the fuel lines and fittings for cracks or wear. Replace any damaged components promptly. Ensure the fuel tank cap is tightly sealed and the tank is not damaged.