mostly 450's but seems that all can be a problem if fitted with the jet insert , some have a solid jet with no steel you can see . some brass some steel or stainless but seems its the bought from a store not a mower shop , does built to a price ring any bells ?
most i found are on 450's from a well known hardware store , thinner bases also cracked on the high arch side . handles fatigued already too !!!
i wont name the name but its i think a green n red store , sells snags on weekends
. Dave
