OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Trimmers and Brushcutters Ryobi Trimmers & Brushcutters Ryobi Lawn Hornet 1100 MK III Leaking

Yes, I had used those two in the correct order: the conventional first(in contact with the carburetor body, then the mylar then gasket and then cover lid but it wasn't working.


When I put the old ones back, there were a couple of things I also did. Adjusted the trigger wire to make it tenser and also took the clip that holds the needle and bent the end upwards a tiny bit as it did not seem to be lifting the needle before. So perhaps this helped fix the problem.


I now tested both: the mylar type diaphragm and the conv+mylar set up and both worked. I did not notice any difference between the two. However it seems to me they both are smoking a little bit more and running slower than when I used the old diaphragm. This may just be my wrong perception but it also feels they have a smoother idle run, which is nice.





Again, I may just be wrong or perhaps that is how it is. The old set up is not good anyway, so I don't have a good point of comparison. It may have to do with the trigger wire adjustment (although I thought I kept it within range of where it was )

In short, the mylar type pump diaphragm runs ok at least for now. There is no much to do in my yard at the moment so didn't do much testing. I'll give it some more use next time I mow my lawn to see how it behaves in the long term.