LOSI 8IGHT/8IGHT-T RTR • INSTRUCTION MANUAL
8
EN
Possible Cause
Solution
ENGINE DOES NOT START
Out of fuel
Refill the tank and follow starting instructions
Engine flooded
Review
Glow Plug Test
Air filter is clogged
Check and replace if necessary
Fuel is old or bad
Use new fuel
Glow plug is not working
Review
Glow Plug Test
Throttle servo failed/Setup is wrong
Check servo operation. Set it to neutral and reset the linkage according
to your radio and model manufacturer’s specifications
Carburetor is incorrectly adjusted
Return the carburetor to the factory settings and retune if necessary
Piston and cylinder is worn
Check the piston and cylinder for wear or damage and replace if necessary
ENGINE STARTS THEN STALLS
Out of fuel
Refill the tank and follow starting instructions
Air filter is clogged
Check and replace if necessary
Engine may be overheated
Let the engine cool. Richen the high speed needle
Engine idle is too low
Follow the instructions to increase idle speed
Carburetor is incorrectly adjusted
Return the carburetor to the factory settings and retune if necessary
Clutch is slipping or locked-up
Check the clutch for worn/broken shoe or spring. Also check clutch
bearings and ensure free rotation
Fuel is old or bad
Use new fuel
ENGINE IS RUNNING, BUT VEHICLE DOES NOT MOVE
Brakes are stuck
Look for damage or foreign matter locking the brakes
Drivetrain is damaged
Check for damaged driveshaft or diff. Replace as needed
Receiver battery capacity is low
Charge the receiver battery
Radio is not responding despite charged battery
Make sure binding is properly set up
Throttle servo is improperly set up
Set the servo to neutral and reset the linkage according to radio and model
manufacturer’s specifications
Drivetrain is not functioning properly
Check the drivetrain for smooth operation/damage
ERRATIC CONTROL
Transmitter and/or receiver batteries are weak
Install new batteries in the transmitter. Recharge the receiver battery
Connectors are inserted improperly
Check the connectors and reinstall if necessary
Brake is not working
Check the servo, brakes, and linkage for damage. Repair/replace/reset
the servo linkage to factory settings
The throttle channel was reversed after calibration
Rebind and calibrate
The steering channel was reversed after calibration
Rebind and calibrate
Troubleshooting Guide
Turning Off the Vehicle
1. Remove the vehicle body.
2. Using a Losi
®
tuning screwdriver (LOSA99167), pinch the fuel line.
3. Power off the receiver.
4. Power off the transmitter.
WARNING:
Do not touch the exhaust, as it can become extremely hot
during use.
1
OFF
2
OFF