i think the stock 660's are very underpowered for as big as they are. what i would like to see is a 350 V8 rhino, or some kinda big cruiser bike motor like the V6 from the goldwing, or some big v-twin from the yamaha star motorcycle. I would love to do something like that, but i dont even have money do but a rhino, never mind doing an engine transplant...
1989 Yamaha YFZ350 Banshee
DMC 916 Exhaust__K&N Filter__Boysen Reeds__13 Sprocket__+2+1 Lonestar J-arms__Works AT-Steelers Triple Rate Shocks__White Brothers Rims__Renthal Banshee Bend Bars__Powermadd Handguards__UFO Plastics__Nstyle Graphics__Ceet Cover__Turner Bumper
"It ain't fast without mixed gas"