crackerjack1505

Hi all, Noobie on here and am looking for some help. i have a Sherco 290 2002 which has a noisy motor. I thought it was piston slap so I've taken the head off to have a look - I've noticed that there's lateral play (no up and down play) in the crank. i.e If I get hold of the top of the crank I can induce a "wiggle" from side to side - I'm assuming this ain't good ! So have decided it's time to replace the big ends and probably give the old girl a freshen up on top with a new piston and replated bore. Piston and bore bit is easy enough but am looking for some advice on replacing the big ends. Is it an easy job or am I better off shipping the motor to a dealer to get it done ? Cheers Steve