I screwed/riveted this thing on the air filter end for safety wire.
Inside there is backup for the screws. It was too long for rivets.
The tube jams nicely into the filter. Still it could work out, so I put 4 little brass flush screws around the perimeter.
The hose clamp keeps them captive.
I tie-wrapped a short piece of fuel line on the X of the motor mount, and ran a safety wire bridle through it - from the tab I riveted onto the end to the hose clamp.