GeneMiller said:9504's on the quad , stainless, and i never change them. the flow and pattern look as good as new.
gene
Lee Stockwell said:It depends. Brass more often than stainless.
Two things to look for: spray pattern, and measured flow via bucket test.
Bucket test a NEW 06 flow combination into a bucket as a baseline comparison. Worn jets flow more water in a narrower more ragged pattern, leaving gaps.
Brass should be good for 1000 hours, SS three or four times that.
danielc said:Lee you're crazy if you think jets will last 3k hours.
Change them every 6 months to a year or 500 hours.