What was Don talking about

[Golfdad75]

In Don's carburetor video he mentions that on the older style carbs without the fifth screw sometimes require a gas /wind resistant sealer in front. Anybody recommend one.

[Rbyham]

Mine has no 5th screw on front. Just tightened the others down evenly and we'll. No problems after 18 months... But of Don said so... :-)

[roadnsky]

I thought in the video he explained how to modify a 4-bolt carb?
Not sure...

Anyway, read this TECH TIP and he does:

http://www.moyermarine.com/pressure_regulation.htm