I would like to create the ultimate mod for my xr650l. A new Heart!! I have an extra complete 650l motor, and an extra complete lower end/trans from a 600r. I am going to transplant the trans/kickstart into the 650l, but while im there(the mechanic that is) I would like to mod the engine, bore, cam what have you. I would like your advice on what parts to use. I would like to use pump gas, not racing fuel. I am also looking for a shop near So Cal /San Diego to help me in this venture. Any help, advice would be greatly appreciated. It would also be nice to document what is being done so that others can have an easier time doing the ultimate mod!!!