« Last post by KevinW on July 25, 2015, 01:09:08 PM »
Good suggestion Mike! I had that happen as well. The way the power valve (PV) works is: under high vacuum (idle), the PV gets pulled down, the stepped metering rods would have the thickest part in the jet, which reduces fuel flow. Under low vacuum (acceleration), the PV raises allowing the thinnest part of the rods to be in the jets, this increases fuel flow.
What happened to me is a little ring of gunk (evaporated gas residue) to be in the jet. This prevented the rods from going into the jets to their lowest point. This meant too much fuel was getting in at idle.
If the float is good, you need to open up the carb and inspect the bowl area and jet wells for any issues. Luck!