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Some fuel tanks will have a black rubber grommet that have holes for the fuel lines to go into, if your holes are in the tank itself, then no, there's no grommet. And if that's the case ,your lines are not the correct outer diameter. There are multiple sizes of fuel lines. In my shop I have multiple sizes, if you don't have that kinda stock, you're better off either ordering the ones of a parts drawing of your model or simply take your unit and old lines to the closest small engine shop and have them match em up, u actually can just bring the tank with ya.
Hi There, Check the primer bulb for tare or pin holes. Replace it. Check and clean carb jet it maybe plugged with debree. Also check for spark which you didn't say. Replace with correct plug.
Note; Do not use strong cleaners on rubber seals (O rings and gaskets) They dry up and crack.
If needed use a dabble of grease on seals
Your right, what happemd when the fuel is left in for a while is, the petrol evaporates off leaving the oil gumming up everything. You can flush through with need fuel, but make sure you remove all the parts first and dont run the engine on the neat fuel.
normally one fuel line has a small filter on the end of it. that one needs to be exactly the same size. that one sucks up the gas and sends it to the engine. the other fuel line is for the excess gas / air to return to the gas tank and keeps it from spilling all over you / or wasting fuel. it can be shorter but is required to be inside the gas tank to recycle the unused fuel
no you can buy replacement fuel line but you must reconnect the filter in the tank that line goes to the bottom of the carby then out the top of the carby to the inlet on the primer then out of the primer and back to the tank.
your fuel lines are probably old & brittel they are the first thing to leak on those sometimes they leak around the tank but they are really thin lines & they get hot from engine heat & dry rot easly replace both lines from carb to tank & the leak will be gone most lines are 1/4 lines in most cases
A new carburetor would be simplest solution. You could try disassembling the carb, cleaning and replacing diaphrams, but just replacing the carb would be my choice. What is the model # on the trimmer and I can tell you the part # of the carb you need.
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