Horizon Hobby HANGAR 9 Model 12 Viking 120cc Manuel D'utilisation page 24

8. Once the lower cowl has been trimmed to fi t the
muffl ers, the upper and lower cowl can be joined using
eight 4-40 x 1/4-inch button head screws and eight
#4 washers. Tighten the screws using a 1/16-inch hex
wrench.
9. Attach the propeller and spinner backplate to the engine
using the hardware included with the engine. Use the
instructions included with the engine during this step if
any modifi cations are needed to be made to the propeller
or spinner.
10. Install the spinner cone, making sure it does not contact
the propeller.
EN
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