Valve Adjustment
In order to achieve long lasting engine performance, the valve clearance needs to be checked and
adjusted if necessary after 2-3 hours of operation.
To check and adjust the valve clearance remove the valve cover by unscrewing the mounting
screws. Set the engine to the top dead center so that the valves are not in cut. That is, when on
both rocker arms is backlash.
Clearance adjustment:
Loosen the lock nut using a wrench. After the desired clearance is achieved by turning the screw
with a screwdriver, retighten the lock nut. Then proceed to the next valve.
Intake valve- 0,1mm or 0.004"
Exhaust valve- 0,1mm or 0.004"
This repeat on all cylinders and then reassemble the engine.
If you do not have much experience doing the valve adjustment in this manner:
1. Send the engine to an authorized repair shop for the valve adjustment.
2. Get the information from the manufacturer at
Now the engine has been set up and no further adjustment will be needed unless other engine
work is being done.
Ignition
Warning!
Don't remove the sensors of the ignitions from the back engine cover.
Installing the ignitions is an important part of mounting the engine into the model airplane.
The ignitions has to be placed in a place where it cannot be affected by excessive heat from the
cylinder heads or the exhaust system.
If the ignitions reaches a temperature of 60
°
C it will automatically turn off and the engine will
stop running.
Warning!
Make sure the ignition gets sufficient cooling.
You must also connect the sensor connectors to the ignition probe on the rear cover and VN
ignition wires to the spark plugs on the cylinder heads according to drawing no. 1.
Warning!
Do not bend the high voltage spark plug wires!
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