On muffs, the engine will start but will idle very rough for a few minutes then die. Can re-start and keep running rough with throttle input. The remaining throttle positions will increase rpm but its not normal (very rough.
Actions taken:
Rebuild carbs but was not done by experienced mechanic.
Spark test ? good spark on all three
Ran new gas/oil from surrogate tank
Compression readings #1 100 psi #2 90psi #3 95 psi
Replaced spark plugs with correct gap
After all of this, problem was the same.
Items that were not done yet:
Fuel pump replacement
Tear down the carbs again and give a good soak, spray, poke, making sure floats & seats are adjusted.
De-carb piston rings.
I am travleling down this week to see if I can help these folks and I?m requesting some of the pro?s to give me some thoughts on where to start. I am thinking either carbs again or puel pump.
Advice from experts??
Actions taken:
Rebuild carbs but was not done by experienced mechanic.
Spark test ? good spark on all three
Ran new gas/oil from surrogate tank
Compression readings #1 100 psi #2 90psi #3 95 psi
Replaced spark plugs with correct gap
After all of this, problem was the same.
Items that were not done yet:
Fuel pump replacement
Tear down the carbs again and give a good soak, spray, poke, making sure floats & seats are adjusted.
De-carb piston rings.
I am travleling down this week to see if I can help these folks and I?m requesting some of the pro?s to give me some thoughts on where to start. I am thinking either carbs again or puel pump.
Advice from experts??