Thanks for that , why people buy this rubbish I will never understand but I guess market forces have driven these things down to the cheapest on the market, so as consumers we deserve what we get.
AVB, sure I tried a new plug after I had to get the grinder in there to cut one of the screws off that held the cover over the plug because when it was assembled they had cross threaded it.Plug has good spark, compression is as good as you would expect on any motor of that size.
Trev as for warranty he lent it to his brother in law still in the box but it came back without the box and the warranty paperwork. I have told him to just put it in the bin, they are not worth wasting time on
The last sentence probably explains the whole problem but that's my opinion. You simply don't loan your tools out. I got a feeling it has been straight gassed. Once you ruin the PNC on these cheap engine it all over as it cost as much as a new saw in parts alone here and warranties don't cover it either.
Just because the spark plug has good out of the engine spark doesn't mean it has spark under compression load. That why I usually suggest using a known good plug.
I work on many what others may consider cheap Poulan made chainsaws and they are fairly good but they must be setup correctly or they will self destruct for being too lean on fuel mix. I got a Homelite Little Red chainsaw that I use for pruning since it is a top handle saw. The Poulan 4218AV is using a carbide chain for stump removal. The expensive Husky 450 with 20" bar is for the real wood work.
