[jst_4_kiks]

many good answers so far.

anti-siphon valve: mounted on top of 90* elbow on top of fuel tank. gets blocked with debris

pick-up tube screen: on very bottom of pic-up tube screen in tank. it may or may not be clogged. may not even be there at all.

in-line fuel filter: looks like an oil filter in line with the fuel feed line. mounted before FP. small filter inside them too.

carb fuel feed filter: fuel feed line into carb. 1" wrench loosens to get to filter.

exhaust flappers: in top of exhaust y-pipe. age deteriorates them and lots of use. can get loose and break off. fall into pipe to obstruct flow. also if the rubber comes off metal (flappers are covered in rubber. wears off) then the flapper can eventually wear through the y-pipe. $$$$ to replace it.


when all those are checked, check the fuel pump pressure to make sure it is in spec. GOOD LUCK