GXH50 carb leak

Discussion in '4-Stroke Engines' started by fredbert, Apr 7, 2008.

  1. fredbert

    fredbert Guest

    Should I be getting petrol running through my air filter when I turn the petrol on.

    I have taken the carb apart and checked the needle? to see if it sticks, every thing seems fine, but who am I to know.

    Sorry for such a daft question.

    Ed
     

  2. Alaskavan

    Alaskavan Guest

    I have that prob with a honda generator motor I want to put on a bike. I'm planning on just replacing the carb.
     
  3. HoughMade

    HoughMade Guest

    Sounds like a float problem to me. Mine does not do that.
     
  4. fredbert

    fredbert Guest

    Thanks for the advice Alaskavan and HoughMade, I have 3 carbs and they all do the same thing,leak.

    I think this relates to the carb so I hope I am not going off topic.

    On Sat I stripped down my engine rebuilt it and it started on first pull
    but it cut out as I was setting up a throttle cable setup.

    When I tried to restart it took about 10 pulls but ti was going great guns I tried stopping and starting again but would not go for love nor money, I think the carb is flooding the engine, could I be right.

    I removed the air filter and gave the engine a couple of turns, petrol spluttered out all over the place, is this normal.

    Is the float easy to fix?

    Ed
     
  5. HoughMade

    HoughMade Guest

    I don't know how easy it is to fix, but it is easy to get to. Take the bowl off and see what is going on. One thing I have run into on other engines (not Honda) is a crack or hole in the float allowing it to fill with gas and stay open all the time.
     
  6. fredbert

    fredbert Guest

    I have taken the carb apart cleaned nozzles and checked the float.

    When I blew through the petrol intake and lifted up the float it cut off the air, it does this fully assembled and when tipped upside down, would this indicated the float is fine?
     
  7. HoughMade

    HoughMade Guest

    It would seem to be fine. If it were me, I'd put it back together and see if it still leaks.
     
  8. fredbert

    fredbert Guest

    I do not know whats going wrong,air should be drawn in through the air filter and past the carb, is this right.

    When I take the airfilter off and turn the engine over petrol spray and exhaust smoke come out of airfilter side. Sorry for my ignorance but is this normal?

    I apologise for daft questions I suffered an injury and I have to relearn things.

    ed
     
  9. Alaskavan

    Alaskavan Guest

    Don't sound right to me. Is the exhaust restricted? I'd pull the muffler and see if it will run. I don't know much about these engines, but my other thought would be a problem with valves.
     
  10. fredbert

    fredbert Guest

    I hope I have found the problem, i managed to forget to include the lifter collar to the lifter valve assy, now I simply cannot remember where the collar goes.

    Ed
     
  11. Alaskavan

    Alaskavan Guest

  12. fredbert

    fredbert Guest

    Thanks Alaskavan for the help but the file does not show the bit I need.

    The image shows the part I am talking about it is no.12 lifter collar no.10 is the lifter valve, I do not know if the collar goes on before or after the valves go on.

    Ed
     

    Attached Files:

  13. Alaskavan

    Alaskavan Guest

    Beats me. I'll do some searching, but there's gotta be someone around here that could give better input.
     
  14. fredbert

    fredbert Guest

    The collar fits above the lifter valves stops the valves from jumping about.

    I have gone wrong somewhere big time as I get petrol spray coming out of the airfilter.Or is that normal?

    Ed
     
  15. Alaskavan

    Alaskavan Guest

    Air and gas go in that side of the engine. If gas is spraying out, there is something wrong. Either one of the valves isn't opening correctly, or one isn't closing correctly or both. You should get pictures of the assembly and compare them to pictures of one correctly assembled. If you can post pics, I will look at a Honda 50 that I have and see if I can tell where the problem is.
     
    Last edited by a moderator: Apr 9, 2008
  16. fredbert

    fredbert Guest

    Thanks for the offer Alaskavan, I had the cam set approx 180 off so I was goin backwards.

    I sat up to 4am looking through past posts and found pic on cam assy which helped.

    Thanks very much for your help it is appreciated.

    Ed
     
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