Originally Posted by xlite
I would never consider running w/o a filter except for very short test runs like when troubleshooting the tuned pipe problem. Dust that we don't even see makes an excellent cylinder enlargement abrasive.
I wore out a Homelight engine in jig time trying that trick. Two local fellows tried it with HTs and lost compression in 1/10th the expected lifetime. Big no-no.
Ahh - thanks for that voice of reason, it was freakin' me out a lil that so many were discussin' "no" filter lol