hello all, i recently purchased a salvage duke 390 that had been wrecked and was listed as a "run and drive" well when i picked it up it ran fine (quick spin around the block). i replaced all the damaged parts and took it for a ride. i took the same spin around the block and it died and wont start back up. currently cranks but wont start and does not have any spark. i believe i hear the fuel pump priming so i dont think its fuel. i put a new spark plug, ignition coil, and battery on it and still no luck. im not sure where to look for what's wrong. side stand and neutral switches check out, bike just died after heavy throttle. any ideas on where to trouble shoot or what to check would be a big help. thanks in advance.