we have taken the bike to a shop and was told it was going to be a thousand dollar fix. the shop mechanic said since the bike has been bored out in the top end the bottom end is worn out and wont hold compression and it needs a whole new bottom end. to me it sounds like it just needs some rings or somtin but it doesnt sound likely that the whole bottom end could get worn out like that. if you have any thoughts id love to hear them anything helps thanks.