Welcome to the forum, Were are you located in san jose?
Ive been trying to get some locals together and get a group ride going.
I also have a full suspension boxer with a morini... if your ever interested in selling it let me know.
The thing is that once you ride a morini its hard going back, there just so fun and fast.
Ever since i tried 66cc two stroke and 49cc four stroke, didn't like neither one because one was unreliable and the other one lacked the nads.
I finally settled for a 79cc predator, so far i have been pretty happy with it.
It also is a matter of builders preference and budget... I like the sound of a four stroke and the predator engines are cheap enough to start with.
But hit me up if you ever wanna go riding let me know
EDIT: Although the HS 49cc four stroke are VERY reliable engines, and make a decent motor for a cruiser