If you get that HPE to preform like an xmax please let us know. Then I would really be interested. Those damn yamaha 300's out run my Majesty 400
and get better gas mileage while doing it, (and they do it on regular gas, adding insult to injury) Here's an idea, buy an xmax motor and install that in your Vespa. An instant success story! I'm sure this is possible, I once saw a Vespa with a Harley v-twin doing burn outs.
Tony in Tn
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