User manual DLE120

half way through the propeller with the ﬁ nishing drill bit. Then ﬂ ip

the propeller over and drill completely through the hole.

3. Next, set the engine

at the beginning of the

compression stroke.

Note the position of the

ignition magnet.

4. Place the propeller

on the crankshaft at the

one o’clock position.

5. Mark the location of

one of the outer holes.

Use a GPM Dead Center

Hole Locator

(GPMR8130) to center

and start the hole.

6. Remove the propeller

from the engine and

drill the outer hole

using a #35 drill bit as a

pilot hole. Next use a #5

(.2055" / 5.21mm) drill

bit to ﬁ nish the hole. In

order to achieve a clean

opening on both sides

of the propeller, drill

only half way through

the propeller with the ﬁ nishing drill bit. Then ﬂ ip the propeller over

and drill completely through the hole.

7. Use one of the 5x50mm SHCS with 5mm lock washers and ﬂ at

washers to align the propeller washer on the propeller and use the

Dead Center Hole Locator to mark the position of the remaining

ﬁ ve holes.

8. Drill the remaining ﬁ ve holes in the propeller.

9. Securely mount the propeller to the engine using the

5x50mm SHCS with 5mm lock washers and flat washers. Be

sure to use threadlocker.