4
starting and using the engine
Run-in the engine
Follow the cold start section as below.
Idling with throttle on radio in neutral position:
●Engine idle is well; this is the case if the car does not roll forward with the engine running
and the throttle in neutral > leave it as it is.
●Engine stops when in neutral > Adjust the idle screw with Y4 of a turn in (clockwise) at the
time, and start again; repeat as needed
●Engine idles too high; in this case the car moves farward with throttle in neutral > Adjust the
idle screw with V4 of a turn out (counter clockwise) at the time until the car does not move
forward anymore and engine idles well.
- Run the car one tank of fuel with this setting. When you run the car apply max 70% of total
power and do not run at 70% or more for longer than a few seconds.
- After 1 tank of fuel, screw in the high speed needle 1/16 turn and run it far 1 tank again.
- Repeat this 5 times in total. Do not lean out the engine too much, as this will cause overheating
and breakage. 1/16 turn out (anti-clockwise) is the minimum necessary.
- Run the engine with same setting far another 5 tanks and apply max 90% throttle .
- After the 10 tanks in total the engine is run-in and can be run at full power.
Cold-start
- Make sure the fueltank is lled to 90% with a high quality commecially available re car fuel
with 25% nitro.
- Perform 5 pulls with the pullstarter without using the Glowstarter and closing the outlet-pipe
of the exhaust with your nger, this will allow gas-mixture to enter the engine.
- Apply the glowplug starter and pull the pullstarter with short fast pulls. As soon as the engine
runs, then lift the car up and apply short strokes with the throttle lever of your radio to warm up
the engine. Remove the glowplugstarter.
- Mount body-shell and start running the car.
- Try to avoid the fueltank from going empty during the run. A tank of fuel will last between 10
and 15 minutes, so refuel before it’s empty, so you continue driving without restarts.
- To stop the engine, press a proper engine stopper with rubber top against the ywheel from
the bottom of the chassis. NEVER use your ngers!
Hot re-start
- Apply the glowplug starter, apply a little bit of throttle on the transmitter, pull the pullstarter
few times until it restarts.
- If after few pulls the engine does not start then let it cool down for 5 minutes and try again.
- In case it still does not start than fallow the instructions in section: Engine does not start.
Setting the carburetor for best performance
Follow the section: start the engine (cold or hot re-start)
1. High speed needle setting:
- Adjust the settting with max 1/16 turn in or out per time.
- After changing the setting apply throttle few times with car of the ground, to allow the engine
to adapt to the new setting
- Run the car again and check carefully the result.
- By turning-in the needle (clockwise) the engine will run leaner (will get less fuel) and the
speed will increase, if you lean the engine too much, the engine will run too hot and damage if
continued too long. If the engine runs too rich (too much fuel) the speed will go down and the
engine may shut down, as the plug cannot ignite the gasses anymore.
- You can also check the correct running with an optional infrared temperature gauge; optimal
temperature is around 100°C.
Notes before to start:
●Before you start the engine, rst switch on the receiver and then the radio and perform all
checks as above.
●When pulling the pullstarter, make sure not to pull out more than 20cm. If you pull out more
the device inside may damage and the rope will not return into the case.
●When the engine is new it need a session of run-in, before the engine can be run at high
speeds, follow the instructions as per below.
●If the engine does not start after 10 pulls, then stop and follow procedure as per below with
title: Engine does not start.
