HPI Racing WR8 3.0 117147 Instruction Manual
![HPI Racing WR8 3.0 117147 Race Kit manual cover](/images/nltFMoqycxnyaKKaIgFQQlWB/thumbs/thumb175x175.webp)
To break in the engine, follow a heat cycle procedure: run the engine at idle for a few minutes, allow it to cool, then gradually increase throttle over several tanks of fuel. Ensure the vehicle is on a stable stand to prevent moving during idle.
Use high-quality nitro fuel with a 20-30% nitromethane content, specifically designed for RC cars. Avoid low-grade fuels as they can damage the engine.
Adjust the suspension by changing shock oil viscosity, spring tension, and shock positions. Refer to the manual for recommended setups based on track conditions.
First, check the glow plug for proper function. Ensure the fuel lines are free of obstructions and the fuel is fresh. Verify the carburetor settings and ensure the engine is not flooded.
Regularly inspect the drivetrain for wear, clean it thoroughly, and apply appropriate lubricant to the gears. Replace any worn-out parts to maintain performance.
Remove the air filter, wash it with warm soapy water, rinse thoroughly, and let it dry completely. Re-oil the filter with air filter oil before reinstallation.
Ensure proper airflow by removing obstructions from the cooling head. Use fuel with the correct nitromethane percentage and avoid lean engine settings. Consider using a cooling fan if necessary.
Clean the vehicle thoroughly, remove any fuel from the tank and lines, and disconnect the battery. Store in a cool, dry place and ensure all moving parts are lubricated.
Start by setting the high-speed needle to the factory settings, then adjust gradually while monitoring engine temperature and performance. Fine-tune the low-speed needle and idle as necessary.
Check for servo horn and linkage issues, ensure the servo is functioning properly, and verify the receiver connections. Also, check the transmitter settings for correct configuration.