bgm says:
"The connection rubbers from BGM from the carburetor to the intake manifold with the connection width Ø=35/40mm are made of a very oil and petrol tolerant material this ensures the highest reliability and durability. Carburetor and intake manifold should be thoroughly degreased before assembly. For hose clamps we recommend the 12mm version, these should not be over tightened.
This conversion rubber allows the connection of different connection widths on the carburetor and intake manifold."
Product safety information
Manufacturer information:
Scooter Center GmbH
Kurt-Schumacher-Str. 1
50129 Bergheim-Glessen
Deutschland
info@scooter-center.com
https://www.scooter-center.de