Torch tip cleaners are abrasive. Meaning they can and will, enlarge any soft brass jet. This leads to a richer running engine and fouled plugs. Not recommended.Get a set of oxy/acet welding tip cleaners, and run them through the main jet particularly, a tiny layer of varnish builds on the inside of the jets reducing its diameter and reduces fuel flow, you can see through the jets and they look clear but are slightly diminished in diameter due to build up. Have had the problem on my own equipment and other folks. Worth a check, works for me. You aren't making/drilling the jets bigger, just scraping off the varnish to bring them to their correct size. Something like these
Carburetor jet cleaner.Also a Tip and nozzle cleaner .Oxy acetylene ,LPG | eBay
Carburetor jet cleaner / Tip and nozzle cleaner.www.ebay.com.
Try it on your $70,000 car injectors and see.
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