Sunlight dish soap bottle all I have used for 40 years.This gets used many times a year on all kinds of motors.Every old Snow mobile has one on board one or two pulls max.I see the new Sunlight bottles look like they are made of some kind of new and improved plastic which means they wont last like the original ones.The bottles last forever if they are stored out of the sun.If I have not run a saw in awhile I give it a fast squirt and one or two pulls and as sure as your uncles Bob shes running.
Kash
Kash