Look in the motorcycle for sale section of any Recycler or free ad publicaiton and you'll find literally dozens of KX CR & YZ four stroke's a couple years old with blown motors for $600.00 and up.
Source a decent air-cooled two stroke motor from a salvage yard, and with a little fabricaiton and drilling you get an unbreakable dirt bike with the latest frame and suspension tech. The biggest pain is fabricating the expansion chamber, had to cut the stock pipe up and re-configure as a down pipe.
I wanted to get a YZ465 motor but Rick wanted a 250. So we got a sweet RM250 from a '79 basket case for $200.00. The whole cost of this is right aorund $1,000.00. (for a 214 lb, bike that puts out 39 hp).
Should be done today sometime after Rick welds up the chamber at his buddy's house who has a Monomag 400 wire welder (the only way to get a good bead is with a gas shield).
Source a decent air-cooled two stroke motor from a salvage yard, and with a little fabricaiton and drilling you get an unbreakable dirt bike with the latest frame and suspension tech. The biggest pain is fabricating the expansion chamber, had to cut the stock pipe up and re-configure as a down pipe.
I wanted to get a YZ465 motor but Rick wanted a 250. So we got a sweet RM250 from a '79 basket case for $200.00. The whole cost of this is right aorund $1,000.00. (for a 214 lb, bike that puts out 39 hp).
Should be done today sometime after Rick welds up the chamber at his buddy's house who has a Monomag 400 wire welder (the only way to get a good bead is with a gas shield).