70-72cc for bolt on ,depends who you believe about the 72
you could go bigger if you found a 90 but you have to bore the case
a bit to accept the bigger cylinder skirt .
this is a cool part swap i was reading about a guy that took a minarelli
cylinder and put it on a morini motor ...can we say frankenstein-in ?!!!
http://www.apriliaforum.com/forums/showthread.php?162151-MF70-racing-%28Minarelli%29-%28Morini%29-DI-Techanyway i 'm just wrapping up a bbk ,tossed the stock pipe with the horsepower
reducer ~ its that short bit of pipe with the closed end on the exhaust pipe .
put on a 17.5 carb & had to custom make the throttle cable.
both set of springs and put some sliders in the stock variator
so let me know if you want parts & pointers.
oilyhans
« Last Edit: May 18, 2013, 10:39:40 AM by harry »
i own a scooter shop with rentals ,sales& racing parts.
i also appraise scooters for KBB.
2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide