Vertex Omega 150 - not skimming as usual

[The Guy]

I've had my 150 since the xmas sale at J&L 2013 Before I ran it in the sump I ran it in vinegar mixed water for 48 hours for break in, put it in and it dailed in perfect within a day. I've removed it and totally tore it down for a full cleaning once only, but have cleaned the air tube and muffler a few times. Have not had any issues with the needle wheel yet, fingers crossed!