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I would like to ask if the following two sets of "Carbureted" Piaggio Engines are really one in the same, one in the same meaning 100% identical. I realize that they use different size Wheels which affects performance. Ideally, I would like to be able to swap any Engine within a Set if possible. I would also like to explore using a 250 in a 200 Frame as I think there should not be any required Headset modifications.

Set one - Piaggio BV200, Vespa GT200?
Set two - Aprilia Scarabeo 250, Piaggio BV250?

If they are not 100% identical, what makes them different?

Best regards and "Thank You" in advance,

Mike Lynch
⚠️ Last edited by Mike Lynch on UTC; edited 1 time
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Mike,

All I can input is that both your groups are listed as using the same variator from J Costa

JC6239FS for the 200 Leader
JC6249FS for the 250 Quasar.
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First of all, the Scarabeo 200 does not belong in that category. It is a completely unique engine. All the rest are correct. There are MANY differences between the LEADER 200 and QUASAR 250 engines, including starter gear setups, flywheel/waterpump arrangements, etc. There are more similarities than differences, but some of the differences are significant.
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Hmm after re-reading your post, it seems as though you are comparing engines within a set, rather than one set to another. In this case, removing the Scarabeo from the 200 list, there are nearly no differences, and probably more differences from year to year than from model to model. The only obvious differences are wheel sizes. This affects final drive gearing, and sometimes CVT belt, as is the case with the GT. (the BV and Scarabeo, although they have 14" and 16" rear wheels, respectively, use the same drive belt.)
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Thank you Drew!
I appreciate your feedback and have edited my original Post to reflect that input.

Best regards,

Mike Lynch
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Buddy 125, Scarabeo 150, Scarabeo 500ie, Triumphs, Vespa Sprint 150
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That's an interesting question, I had wondered about that for some time too.

No projects planned involving those engines though

fried okra
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Bump!
Any additional Feedback is appreciated.

Best regards,

Mike Lynch
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I've been looking into this as well, since my BV200 engine decided that mixing coolant and oil was a good thing. Looking at the parts catalogs I think the BV250 engine could be used in the BV200. Both bikes use the same frame, body panels, and suspension arm (the part the muffler mounts to). So it seems the basic geometry would allow it to work. Things that are different include the swing arm, center stand, kick stand, and radiator. Should be easy enough to overcome these.
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Thank you LotusMike!
I appreciate your feedback.

Best regards,

Mike Lynch
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