44
5.
Use a 1/4 drill bit to drill the engine mounting
holes.
6.
Aluminum spacers are included to set the
proper stand off distance for the engine used.
7. The required distance from the firewall to the
front of the prop mount on the engine is
7 3/4”
as shown below.
Note:
The prop hub will stand out from the front of
the cowling approximately 1/2”. This is
Normal for all Yak’s and is required to
achieve proper C.G. location and engine
performance.
8.
Insert the 4 bolts through the engine mount,
spacers and washers. Use 4 flat fender wash-
ers between the spacers and firewall to distrib-
ute bolt pressure. Insert the bolts through the
firewall and add washers and lock nuts.
Tighten firmly. Use Loctite to secure.
