Hi,all I'm looking at getting a 03 blaster from a guy for 600. He has rebuilt top and bottom(or as he says) show me all the boxes and receipts etc. etc... long story short he says it's having a issue cranking says he can get it to start just takes a while and when it runs it shuts off. My question is if it is worth buying and by me being new to this would I be able to diy it and how difficult a task is it