I have a 325 that I got just the base no piston or cylinder so I put on a 5000 piston and cylinder.The issue I have discovered that the gas tank hole for the gas line to pass through is larger or more sloppy on the 325 than on my 500 and 5000's. Fuel vibrates up and out around the gas line / tank meeting surface. Gas splashes up kind of and leaks badly I cut 2- 8" fir's and was empty
.I think this effect's the fuel supply to the carb as the seal the line makes to the tank hole is very loose thus the positive pressuer in the tankk is not constant. However not loose enough to accept the next size line I have anyway.
It is causing a lot of excess fuel to be around the carb and I think the saw is sucking some in at the carb as well as through the supply line causing the saw to flood. I have spread some black permetex around the surface to try to seal up the area in hopes that this will stop the leak .The saw runs fine in my shop but carring it to the wood lot on my tractor with the bar down the engine up it seems to be flooded when I get to the woods.So tomorrow I will carry it more level and with the sealant maybe see a diffrence? Has anyone expereinced anything like this before? Jeff
Jeff I dont know exactly what you got going on but the PP325 uses the same fuel line as a 500/5000 does.
Either someone modified your saw and the tank hole or you got a wrong sized line or a old line that has shrunk.
Black silicone around that hole wont last long, the gas will eat it up soon.