oh wow, thanks for chiming in.motormike wrote:The covering of the air intake on the filter housing indicates that the filter is allowing air to pass through very freely.
So freely, in fact, that the fuel does not react to the vacuum, or lack of vacuum, created by this free-flowing filter.
ME TOO ! !...My Gyro S currently has a filter foam that I fashioned from a piece of filter material sold by UNI brand.
I also am required to cover the air intake on the filter housing in order to start my Gyro.
My opinion is that WE ALL have some small bit of varnishing inside the carb that reduces the pilot jet size and not until we create more vacuum with our hand will the pilot be forced to pull fuel from the bowl.
Not sure how this answers the question "why does it die after 30 seconds"...but mine always fires right up after stalling the first time and never stalls again.
Me and dsandwich have been having a PM discussion (I didn't want to influence opinions), and that's very interesting and very helpful to hear.
In our "off the record" discussions I had indicated that I had thoroughly cleaned the carburetor twice, although I didn't clean the emulsion tube because I don't know where it is, and I didn't polish the float valve seat because it looked good to the eyeball, even though I later saw that I should've used a magnifying glass.
I also had called my local Honda mechanics, although I didn't reach my favorite guy there. After explaining what I had done, and the closing of the air intake situation, he was left to suggest compression. Thanks to good old O'Reilly's auto parts free compression tester loaner, I learned another skill, and found the compression to be 120/8 (I don't know what this means), but surprisingly (to me) the readings were lower when the engine was warmed. I called back and they said that could happen.
But now, with your report, my heart is filled with joy, as I had done everything I could do, and it all now appears to be within the range of "normal". I have asked dsandwich to report his results as far as covering the air intake. Hopefully this will "solve" his problem too.
In anticipation of not ever being able to get past the covering of the air intake "solution", I have started thinking about how I will be able to do this with the plastic engine cover on. I haven't taken a look yet, but I'm going to figure something out.
Perhaps not coincidentally, I too have a UNI filter on it. I wonder if this could have something to do with it. I previously thought it might be too restrictive, but maybe it's not restrictive enough? Really want to hear your thoughts on that.
Of course I will never forgive you for not telling us this sooner
, and it was only pure chance that I happened to find the years old post on a different forum that indicated this technique.Hopefully I haven't suffered too much brain damage from all of the exhaust fumes in the garage. I really can't afford any more, as I have only one brain cell left functioning, but she's doing a heckuva job.
You have made my day.
As far as the "dying after 30 seconds", I found that if I give enough gas to keep it running for just a few moments, it stays running.
) I'll do it.