Hangar 9 Composite QQ Yak-54 2.6m Instruction Manual page 46

engine dome preparation For da-120 • • •
4
Using a drill and 1/16-inch drill bit, make a pilot hole. Then use 1/8-inch,
¼-inch and 5/16-inch drill bits respectively and enlarge the hole.
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5
Insert blind nuts and using a 4.5mm ball driver along with the 1-inch standoff
needed for the engine installation, pull the blind nuts in the engine dome.
6
Mark the top of the engine dome for ignition module and ignition battery
installation by tracing the outside of the ignition box and battery.