Hello, newbie here. Lots of good information here. I bought a Lt 150 that is roughly a year old, was on fire mostly cosmetic. I've been told it uses a vacuum fuel punp but I can't find where it is or where it hooks up. I know older models used mechanical pumps but there is no place on the block for one. Any help/diagrams would be greatly appreciated. Thanks.
Your engine does have a fuel pump and it is a mechanical pump style. These two web sites should help you. One has a parts breakdown and the other is a service manual.