Vespa's (proper ones) don't have barends, also very different to motorbikes.
I had noticed that while passing them. Just thought I'd throw my 2 cents in. You are most probably right about the carb springs.
Sorry if that came across as being adversarial, he has a proper vespa. The modern plastic bodies are bar ended types.
@Airhead started
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Vespa's (proper ones) don't have barends, also very different to motorbikes.