24-05-14, 09:09 AM
Mystery solved 
The carb top on No1 uses a different screw than all the others to hold a bracket in place. The brass collar fits into the hole on the carb top to prevent the screw being overtightend and breaking edge of the carb top. (need to get home and loosen that screw lol)
Cheers guys.
The carb top on No1 uses a different screw than all the others to hold a bracket in place. The brass collar fits into the hole on the carb top to prevent the screw being overtightend and breaking edge of the carb top. (need to get home and loosen that screw lol)
Cheers guys.