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, moving the engine into its top dead center position ( the mark on the
propeller carrier needs to be aligned with the parting plane on the upper side of the engine).
After that, you can start adjusting the valve clearance on the side of the engine where
neither of the rocker arms are engaged.
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"
After rotating the engine by 360
°
repeat on the other side and reassemble it.
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
Installing the ignition is an important part of mounting the engine into the model airplane.
The ignition 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 ignition 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.
The next step is to attach the ignition-sensing unit to the rear cover of the engine where
there is a designated place with two bolts.
Remove the bolts and coat them with a gasoline-sealing compound. Then mount the
ignition-sensing unit carefully to the rear cover of the engine.
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