Mercury Marine Sport 899183001 - Manual (Page 25)

TRANSPORTING
21
Trailering Boat
Use a trailer that will properly support the boat hull. Position the
boat on the trailer so it will rest in a stable position on the trailer
supports.
The boat must be properly secured to the trailer. Secure the boat
to the trailer using tie‑down straps. Tighten the straps down
securely so they will prohibit boat movement. Make sure to protect
the air chamber tubes so they will not get chafed or damaged from
the tie‑down straps.
Trailer your boat with the outboard tilted down in a vertical
operating position.
If additional ground clearance is required, the outboard should be
tilted up using an accessory outboard support device. Refer to your
local dealer for recommendations. Additional clearance may be
required for railroad crossings, driveways and trailer bouncing.