07/09/2020
With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. However, you start it up on choke and everything is fine until you turn the choke off, and the engine dies. What gives?
This is a classic symptom of a partially or fully clogged pilot jet. Fuel goes bad after time, and the first circuit/jet to clog with varnished up fuel is the pilot jet. This circuit delivers fuel for idle, and has the smallest passages found in carburetors.
Another sign of a pilot jet starting to get clogged up is a longer time for engine to warm up on choke.
Can I just pour some magic stuff in the gas to help clean it out? Nope. You are going to have to take the carbs all apart and clean them.