Just purchased my first 250r. Wanted an more original 250r but I liked the way it felt so I picked it up. Has an 89 cr500 motor in it. Wasnt done the best but had some nice stuff on it. My question is how difficult would it be to swap it back to the 250r motor? I don't really wanna sell it and buy another one. Figured I could recoup some of the money selling my 500 motor. I knew vibration and such would be an issue. It doesn't bother me to much honestly but it's a PITA to start. Makes it more difficult to buy parts and everything. I'd rather just have a 250r. Any helpful info would be great. I'll try to link some pics.