I went out and opened the fuel filter drain bolt, nice looking red fuel. thought what the heck, started it and after running poorly for a few min it started running better, opened it full, (never before) and it started running ok, After a few min running at normal speed, it started to miss a little then slowly died. I then remove=d the filter canister, and filter looked pretty much ok, but I will replace. It is a little thing about 2in thick and 3 in wide. It has no part number on it. and so far havent found info on line. I did find an opr manual on line covers the s2e-s6e2, says to use pump to prime, but no mention of where it is, I am sure it is the thing wiht round cap below th injector pump. I have tried to open it, but cant, anyone know how? Charlie