model number confusion

[dag29307]

I have a Beamer II scooter. that states the Model # is a P2NB. Is this the same thing as a GY6? I am also concerned with the BBK, would this work for me?

www.ebay.com/itm/Scooter-70cc-Minarelli-1E40QMB-cylinder-big-bore-kit-10mm-wrist-pin-/120841321304?pt=Other_Vehicle_Parts&vxp=mtr&hash=item1c22b43b58

If I were to go this route what else would I need to upgrade?

Thanks in advance.

[90GTVert]

AFAIK all of the Beamers are horizontal minarelli two-strokes, 1E40QMB, with 10mm wrist pins. So if that's correct you have chose a good kit in the link, but it's far from a GY6.

If you do the BBK the most important thing is to tune the carb. CVT may need to be tuned with different roller weights.

Here's a Beamer BBK install...
49ccscoot.proboards.com/index.cgi?board=yamajog&action=display&thread=556