My sons riding buddy seized his top end today on his 94 RM80 and when his dad took it apart it looks like a classic skirt shatter. When he removed the piston some pieces fell into the bottom end :( he removed the engine and turned it over and got some pieces out but now he's unsure if he got them all and is concerned about throwing it back together with a new top end if there are still some pieces left in the bottom end. Is there a good plan of atack here besides splitting the cases? The boy is supposed to race this sunday and between our work schedules and limited wrenching skills it will be a real task to get the bike up and running with a new top end in time never mind ripping apart the bottom end. Any tips or advice would be appreciated.