Question about Karcher 2500 PSI Pressure Washer

2 Answers

Wouldn't start. Starts immediately when I spray starter fluid into it (then stops). Disassembled carb section cleaned spider nest from intake manifold vent (suspected cause of problem. Reassembled. Now leaking fuel profusely from carb side (I think) of fuel tank bracket. Gaskets on both sides of bracket look OK but???

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  • bonesbba Jun 19, 2009

    Can't try that until I reassemble the whole thing, but can we explore other possibilities first? The fuel really runs down from the area I mentioned and I don't think I really choked it enough to cause that much fuel to pour out. Can you suggest another possibility? One of the on the tank mounting bracket fell off when I first disassembled it, but I super glued it back on and they look serviceable. I don't think i ever had all that fuel leakage when I over choked it before I had this problem.

  • bonesbba Jun 19, 2009

    Can't choke it, start it, then unchoke it because it doesn't start. Just leaks.

  • bonesbba Jun 19, 2009

    I don't think the leak is due to over choking (although I know that's possible)because I tried starting twice and don't think I over choked. The last expert is fixated on that one solution. Can you suggest another possible explanation for the excessive leaking before I repeat the process of completely reassembling the whole carb and intake section????

  • bonesbba Jun 19, 2009

    I'll put it back together and try again, but don't think we've found the problem. If it doesn't start this time I'll just take it in to the shop.
    Bonesbba


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Definitely sounds like a gasket issue. Anytime a carb or manifold is taken apart, it's a idea to replace the gasket. Old gaskets are compressed and can compromise the seal after reassembly. A new gasket(s) will assure a proper seal and prevent leaking. Apart from this, it's possible to overtighten and distort the gasket, preventing it from sealing properly.
I think replacing the gaskets and taking care not to overtighten the carb (you can test it before tightening further) will solve your leaking problem.
All the best!
Greg

Posted on Jun 19, 2009

  • Greg Margossian
    Greg Margossian Jun 19, 2009

    OK, be sure to use new gaskets and it just came to me, check the gas line fittings to the carb as well. A worn fitting on either end would cause a large gas leak.

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Well make sure you choke it, then try starting to make see theres no flooding and then unchoke it and then try starting. To much fuel in the chamber.. and when you keep starting it, it keeps pulling the same amount so make sure you choke it start it, then unchoke then try./

Posted on Jun 19, 2009

  • dino kalameros Jun 19, 2009

    that is a problem. I will say that the leaking is a problem, but if it wasnt happening before you disassembled it then im sure its not the issue! but i looked up this brand and its a pull motor, I used to try to start a chainsaw over and over and over again> fuel oil mix is good but for some reason most pull engines wont start unless you Choke it, then pull the motor leaving a back pressure in the chamber, and when you release the choke this should start it first try, there should be a choke switch and older motors dont have this its a pully not a switch but yours is new.but i only assume this because its happened to me.If its not the choke their could damage to a fuel line or to a part unseen . the leaking will cause under pressure and it may not start at all, make sure the gaskets arent damage and even if not, they may be different sizes due to storage or weahter.



    i cant say it could be anything beside motor damage but i dont see that. if it turns when you pull its should mean its ok.

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