I am new but I have tried to resolve on own by searching previous posts, however, am stumped:
I have rebuilt all three carbs ... #1 (top) was clean, #2 (middle) was dirty, #3(bottom) was filthy. All three tested at 110 PSI compression.
NOTE: Fuel diaphram was repaired two years ago. Water pump replaced two years ago.
Despite recent efforts, the motor still made the barking noise and would stall. As I understand from other posts this is called a "lean sneaze."
I noticed while running, that the top oil line before the engine was not pulling oil and is likely the source of the problem ... plenty of oil to #2 and #3. Therefore, I cleaned the check valve and sucked on it aftwerwards to verify it was not clogged (wow, does Gunk Carb cleaner taste nasty). I put it back on, verified oil was coming up to the check valve and the engine port was sucking ... still getting a lean sneaze.
NOTE 2: the amount of oil coming from the pump was a slow trickle ... not sure if I should have expected a more steady stream ... I am not a mechanic, but not afraid to learn so I just don't know if the oil flow is normal??? Is the oil pump bad?
Final question (again, I am learning), when I rebuilt the carbs, the screw on the top (the "Pilot Jet", #4 on the diagram) had three holes at various heights along the screw body was tightened down all the way. Is this where it should be?? I did back the "Pilot Air Screw" (#6 on the diagram) 1.5 turns, however the Pilot Jet is tight. I wasn't sure if one of the three holes was supposed to be aligned with the Pilot Air Screw ... comments on my rebuild woudl be helpful too!
Many thanks in advance, for your suggestions!
I have rebuilt all three carbs ... #1 (top) was clean, #2 (middle) was dirty, #3(bottom) was filthy. All three tested at 110 PSI compression.
NOTE: Fuel diaphram was repaired two years ago. Water pump replaced two years ago.
Despite recent efforts, the motor still made the barking noise and would stall. As I understand from other posts this is called a "lean sneaze."
I noticed while running, that the top oil line before the engine was not pulling oil and is likely the source of the problem ... plenty of oil to #2 and #3. Therefore, I cleaned the check valve and sucked on it aftwerwards to verify it was not clogged (wow, does Gunk Carb cleaner taste nasty). I put it back on, verified oil was coming up to the check valve and the engine port was sucking ... still getting a lean sneaze.
NOTE 2: the amount of oil coming from the pump was a slow trickle ... not sure if I should have expected a more steady stream ... I am not a mechanic, but not afraid to learn so I just don't know if the oil flow is normal??? Is the oil pump bad?
Final question (again, I am learning), when I rebuilt the carbs, the screw on the top (the "Pilot Jet", #4 on the diagram) had three holes at various heights along the screw body was tightened down all the way. Is this where it should be?? I did back the "Pilot Air Screw" (#6 on the diagram) 1.5 turns, however the Pilot Jet is tight. I wasn't sure if one of the three holes was supposed to be aligned with the Pilot Air Screw ... comments on my rebuild woudl be helpful too!
Many thanks in advance, for your suggestions!
