HPI Racing Savage X 12858 Instruction Manual
![HPI Racing Savage X 12858 Race Kit manual cover](/images/hDozrVvPSCfrJqrEqnlNtTnk/thumbs/thumb175x175.webp)
To break in the engine, follow these steps: 1) Use a high-quality break-in fuel. 2) Start the engine and let it idle for one tank without driving. 3) Gradually increase the throttle in short runs, avoiding full throttle until the engine has completed around 5 tanks. Ensure the engine cools down between runs.
Check the glow plug for functionality, ensure the fuel is fresh, verify the fuel lines are not blocked, and check the battery charge. Also, ensure the carburetor settings are correct and that there is no air leak in the engine.
Upgrade the suspension with stiffer springs, use performance tires suited for the track surface, adjust the gear ratios for higher speed or better torque, and consider using a tuned exhaust for better engine performance.
Regular maintenance includes cleaning the air filter, checking and tightening all screws and nuts, ensuring the drivetrain is lubricated, inspecting the suspension for wear, and checking the condition of fuel lines.
Adjust the high-speed needle for top-end performance by turning it clockwise to lean and counterclockwise to richen the mixture. Adjust the low-speed needle for acceleration, ensuring a smooth transition from idle to high speed.
Check for a lean fuel mixture by richening the high-speed needle. Ensure the cooling head is not blocked by debris and that the body is allowing sufficient airflow. Consider using higher nitro content fuel for better cooling.
Inspect the servo and its connections, check the steering linkage for obstructions or damage, ensure the steering servo saver is not too loose, and recalibrate the transmitter and receiver if needed.
Remove the body and use compressed air to blow off loose dirt. Wipe down the chassis with a damp cloth. Clean the air filter and check for any damage. Use a brush for hard-to-reach areas and avoid using water on electronic parts.
Inspect the gears for wear or damage, check the differential for proper lubrication, ensure that no debris is caught in the drivetrain, and verify that all screws and nuts are securely fastened.
After cleaning, disconnect the battery, and store it in a cool, dry place. Drain the fuel tank and run the engine dry to prevent fuel from gumming up. Store the vehicle in a position that does not stress the suspension.