No right fuel tap it's just around the wrong the way.The part that pulls out should be facing backwards.Height adjusters are always the first thing to stop working.Will need to be pulled apart cleaned and regressed easy to do just takes time.There is a baffle that goes into the muffler (on the underside) maybe it's not in there.Just take bolt out from muffler on engine and it will pull out,then you should see the baffle,if it's there.I had one that had the baffle missing and it was bloody loud.
