re: 4 wheeler not running good question

the carb was cleaned but he didnt take it fully apart and clean out all the tiny pin hole passages, you cant just do it with a can of carb cleaner and think its done, it needs to soak overnight in a can of berrymans chem dip, then use the can of carb cleaner to blast all those passages clear.

on a side note, did you replace the air filter? if its a paper filter, after they get wet the dont let air flow correctly, if its foam it can be in serious need of cleaning and/or replacing