Is rebuilding a blown up motor yourself worth it?

I used to look at the works racers in the smaller classes that were once so popular in europe. to think they had sub 125cc bikes in the 60's that would break 100 mph lap after lap was really intriguing to me. four stroke and two stroke technologies were both moving faster than I think they had before or since. there was so much money aimed at the bikes that the first time buyers limited by codes to smaller engine sizes. to those buyers, who was winning and who they would want to feel a part of meant a lot in their buying decisions.
 
Top