The 67 Bonneville I just inherited is missing air cleaners. Parts book says the carbs are AMAL
Mono 389's. Under closer inspection, the carbs appear to be different; one side has threads for attaching adapter/the air cleaner, the other side does not. The bike is being shipped at the moment so I cant take a pic, but from memory, the non-threaded side looked to have some kind of pattern where the threading would be. Hope that makes sense.
Has anyone seen that before? I assume this isn't correct, different year carbs ? Different part numbers?
Thanks in advance for any info.
Forgive the noob!