I believe you might have the 18 HP Kawasaki engine in that machine, there SHOULD be a carb O/H kit available for it, might try these places for it, (sjmparts.com) ...(jackssmallengines.com)... (partstree.com)... (ereplacementparts.com)...(repairclinic.com) you WILL need your ENGINE'S model number & possibly the serial number ( usually located right on the engine itself, ) when ordering parts .