see if you can cross the fuel filter numbers to a Wix filter. not over priced and very good filtration.My maint manual should be here either today or tomorrow in mail. Think I'm gonna pull gas tank and lines into carb and clean thoroughly and replace fuel filter. By the way, see fuel filters on internet 2/ $8 vs $20 each for Kawasaki filters. Any reason not to use these? I'm sure there from China like everything else on Amazon. The crap has to be coming from somewhere to plug up primary fuel circuits. I've only had this running right about 6 hours total since I bought it. My son has taken apart the carb 3 times to clean out primary jets. What a pain. Want to get it fixed once and for all..... Making progress. Thanks to all comments!!