Honda SSBL Instruction Manual page 18

3.1.2 Connecting
1
Loosen the knob bolt [1] of powerhead
connections.
2
Align the boss (protrusion) [2] at the
end of the pipe with the slit of the joint
case [3], and insert it to the label [4]
position.
3
Make sure that the positioning knob
[5] is lowered to the original position,
and then tighten the knob bolt [1] of
powerhead connections.
18
[1]
[4]
[3]
[2]
[5]
[1]
[3]