have a hinomoto c-144 that i am servicing(new oil and filter, new fuel filter, new hydraulic fluid and filter.) does not have a filter in the fuel bowl now, so i was going to put one in it. does anyone know what size this is, and what is the best type of motor oil to put in it? also was wondering what happened to Lens12 on this forum? i enquired about a water pump from him a while back, but didnt need one then. now it seems like i do, and was wondering if he still has them and what price?