Yokomo GT-4 RTR User Manual

5
KEY POINTS TO REMEMBER
• Always use NEW batteries when rst running the car. When using rechargeable batteries, always make sure to charge them fully before
installing them in the car.
• Replace the receiver pack batteries in the car EVERY 5-7 RUNS.
• Make sure that the battery connectors are plugged in correctly.
• Before running the car, always TURN THE TRANSMITTER RADIO ON FIRST. Check to see that the steering and throttle work properly
before starting the engine.
• When nished running, always TURN THE CAR OFF FIRST, by stopping the engine and then the power switch. To stop the engine, push
down the foam element in the air lter with your nger to stop air ow to the engine. This will cause the engine to stall.
ENGINE BREAK-IN AND TUNING
It is very important that the engine is broken-in before running.
Please read the YOKOMO 18 ENGINE INSTRUCTIONS before starting your new engine.
STARTING THE CAR FOR THE FIRST TIME
1. Switch the transmitter ON. Always switch the transmitter on rst.
2. Switch the receiver ON (switch on car).
3. Check to see that the servos operate properly.
4. Check to see that the servos are centered properly (front wheels should be straight).
5. Check to see that the throttle lever on the engine is in the ‘closed’ position at nuetral.
6. Extend the transmitter antenna.
7. Familiarize yourself with the range of the radio.
8. Fill the fuel tank with a quality R/C car glow fuel.
9. Close the fuel tank lid securely after lling.
10. Attach the glow plug igniter to the glow plug.
11. Pull the recoil starter to start the engine.
To stop the engine, run the engine until it runs out of fuel, or cover the air cleaner to restrict airow to the intake.
TROUBLESHOOTING
PROBLEM: Engine will not start
CAUSE: SOLUTION:
No fuel in fuel tank Fill fuel tank with fuel
Glow plug is bad Replace glow plug
Glow plug igniter is dead Replace battery or recharge
Engine is ooded Remove glow plug and discharge fuel
Throttle valve not adjusted correctly Set idle and needle valve to standard position
Servo linkage not adjusted correctly Set servo to neutral and re-adjust
PROBLEM: Engine will start but quickly stalls
CAUSE: SOLUTION:
No fuel in fuel tank Fill fuel tank with fuel
Clog in fuel line, air cleaner or mufer Clean or change clogged parts
Throttle valve not adjusted correctly Re-adjust idle and needle valve to 2-1/2 turn out
Engine is overheated Cool engine and open needle valve 2 to 3 clicks
PROBLEM: Bad engine reponse
CAUSE: SOLUTION:
Throttle valve not adjusted properly Re-adjust needle valve to 2-1/2 turn out
Low fuel pressure from mufer Install pressure line correctly
PROBLEM: Car is difcult to control
CAUSE: SOLUTION:
Transmitter and/or receiver batteries are weak Replace batteries or recharge
Transmitter has low range Fully extend transmitter and reciever antennas
Servo Linkage not adjusted correctly Set servo to neutral and re-adjust
PROBLEM: Bad acceleration even though engine response is good
CAUSE: SOLUTION:
Brake is dragging Set brake so that it does not drag at neutral throttle
Loose clutch nut Tighten clutch nut

Yokomo GT-4 RTR Specifications

General

Brand	Yokomo
Model	GT-4 RTR
Category	Motorized Toy Car
Language	English