Was tasked with fixing an approximately 10 year old garden variety victa with a 500e OHV briggs motor
09P602-0053-H1, one of the first ones made in around 2013ish.
When it came in, it wouldn't hold fuel for more than 20 seconds - would run fine, but you basically had to pour the petrol in, prime quickly and pull the cord then run it until it was out of juice, otherwise it would flood out of the primer and carby throat.
Tried cleaning the carby, which had a slight gouge in the cheapo needle, to no avail. Replaced the carby with a GA spares one after replacing fuel line, flushing tank. Worked great, sent it on its way.
Comes back - its doing it again. Initially I couldn't replicate it. Then all of a sudden it started doing it. As its stored in a hot shed, I put it out in the sun and sure enough it started slowly dripping out the carby throat. Not like it did before the new carby but enough to drain the tank overnight. its coming up the main jet very slowly.
New fuel cap, still doing it. Left the fuel cap half off, still doing it.
It now will not prime properly - it shoots a jet of air/fuel mist out of the breather circled. Normally you can feel the pressure resisting you when you press the primer - there is no pressure.
I tried plugging the breather tube as many americans recommend - obviously they dont have hot enough temps to cause the pressure build up.
I am currently thinking I have a dud carby, any ideas?
By the way, the fuel he was using is brand new 91 and the jerry has no dirt in it. fuel is clean in the tank as well
