Only 36 hours on this PWC and it’s always run great until the end of last season when it would bog down a bit. This year it won’t run??? I drained and replaced the fuel, installed new spark plugs and a battery, cleaned the carbs, etc. and now it will start, it sputters for about 5 seconds and then dies. It smells like it is running rich and there is gas going to the sparks. Any ideas?