I go to start my BCZ26 trimmer this morning and it was taking more than usual time to warm up, It felt really bogged down, so I check the air filter first and its fine, then I notice there is no pressure coming from the muffler, This trimmer is only about 4 months old and the muffler is already clogged? I took it off and worked the whole day with no muffler on it! I didnt have time to go back home and clean it out. It worked really well without it, except for being a bit loud, but I can deal with that in return for the performance it gave! Will running it without the muffler all the time cause any problems long term? Thanks.