i bought a bme-105 - ineed to get mufflers for it - i found a pair of johnson mufflers for( bme 5.8 ci ) - that comes to 95 cc the guy that has them said he thinks they should fit - he asked me if the engine had round ports ? and it does - the mufflers are new at a nice price - any in put - and what do you guys think of this bme-105 engine bill