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DO NOT ride this bike until it is repaired! Do ALL these repairs OUTSIDE. Remember fuel goes Bang! The seat end of the tank is the lowest point and that is where the fuel out pipe is located.
Most modern motorbike (and car) fuel systems are pressurised so the injectors work correctly. That will be why is sprays fuel when you turn the ignition on. The leak could be a pin hole or a crack that only opens when the fuel pump pressurises the system.
Starting at the tank, clean and dry everything. This issue is likely to be somewhere between the fuel pump and the injector / throttle body.
Once everything is dry turn the ignition key to the power On, engine OFF position for no more that 2 seconds. Your trying to 'Burp' the fuel system.
Remove the key and recheck everything from the actual tank to the throttle body on the engine. Your looking for the highest point where it has become wet again.
Check the fuel outlet point on the tank, the actual welded seams on the tank. Any fuel lines from the tank along it's full length. look carfully at any pipe connections to the injector and the throttle body. The leak should show up as a new wet area where it was previously dried by you. It is most likely a loose or nipped fuel line or a bent feed pipe into the throttle body.
Since there's quite a bit of engineering behind a primer here's a video to help you better understand the components and how they work so you can better isolate where your issue lies. Good luck!
https://www.youtube.com/watch?v=jalfpoldyo0
If the crossover pipe between tanks runs up the crossmember above fuel level, it needs to be full of fuel to syphon into the other tank, if it has air in the pipe it won't syphon... Pressurise the full tank with compressed air to force fuel into pipe and other tank. it should work correctly unless there is an air leak/ blockage/tap tuned off on the crossover pipe....
empty the petrol,feed the black line (the fuel intake) into the tank and grab the end of it thats attached to the filter inside the tank. now you can feed a new fuel line through into the tank and reattach to the filter. hopefully this will solve your problem ive just done this but mine still wont start, either flooded or spark plug. by the way i bought mine new and the fuel line was split.
This is an old machine made by Mariama under licence to Husqvarna, the grommet in the tank takes two pipes and was part no. 531002411, try the web for a seller.
I am afraid if it has no spark, then itis going to be a replacement ignition unit, it is a solid state electronic unit, so it is not servicable, to get to the ignition unit you need to remove the tube and the front housing, the unit is then screwed to the side of the cylinder.
There should only be two pipes as the primer is located in the carb, the fuel hose from the tank with the filter on the end goes to the carb connection nearest the alloy pump cover held with a single screw, the other pipe fits to the other car connection and goes back to the tank, it just pushes into the tank to return the fuel. the fuel hoses are clear and you can watch the fuel movment, push the primer in and fuel returns to tank, let it out and fuel is drawn into the carb, if the hoses are connected correctly
Hi, dont know too much about craftsman, I think it's part of Sears so your strimmer will be badge enginered, if it has two fuel lines my guess is it's japanese, fuel line is available at your dealer or local home base store, if the fuel lines just enter the tank through holes try to get rubber pipe, it seals better, although a clear pipe would be better for the return pipe, thats the one that just pokes into the tank, it's perpose is to return fuel to the tank after priming the carb, to ascertain which is which place your finger over each nipple on the carb in turn as you press the primer button, one will **** on your finger and connects to the filter the other blows and is the return, the return pipe only has to just enter the tank, thats all. hope this helps. a new tank will cost a small fortune if it's japanese. hope this helps. regards Tony (England UK)
Yes, I think the gas cap may be clogged. The gas cap must be able to breath, otherwise this vacuum will occur. Try starting your trimmer and when it starts to choke out, loosen the gas cap. It should get air back in the tank, then and keep running. If this works, clear the hole in the gas cap, or purchase a new one.
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