While taking the clutch off to check the clutch seal, I looked into the top end through the plug hole. It's looking pretty scored, so I guess that's the culprit. I definitely don't mind that I ordered an OEM carb though. I think the reason the piston scored, (as well as the cylinder) is because one of the top end screws wasn't very tight at all. It took 0 effort to "break" it loose.
I service saws here at home, out of my garage. 50 ++ a year. I'm fussy about how deep I'll dive, and the owners are told, when its done, it costs what it costs. Along comes one of these cheap knock-offs. Try as I might to say NO, it landed on the bench. Passed all the tests, just won't start anymore. The carb came off and apart. The small screen? Its made of plastic, which melted from the heat, cheap fuel,etc.....and literally was a worm clogging the carb. Cheese-ball quality kept this machine from running. Don't get me started on the oil pump, which is also plastic......
"Wholly sheesh!"-- oh, I mean, (hole--eek) I was so close to being enticed by a knock-off. But as I continued to read people saying this plastic part melted here, this bolt was loose, this housing part didn't quite mesh, the bar was curved, fluids seeping out ,,etc..., I figured, how could I come out ahead with getting a 200 dollar saw plus shipping and then have this item that would require aftermarket purchase parts as a compounding insult to the original tool. It just seems like such a rouse, unless there are tech guys out there that like that very odd sort of jigsaw puzzle of down time where your client is looking at you funny. I just went ahead with the 620p. And while expensive, at 245 additional, It is not 925, which is so bloody steep for the"S" or the "H".
So, do you mind me asking where your shop is out of?
I haven't heard any of the problems you speak of about the kit saws and I have bein running one of those dereal pro 62cc saws cause I thought it might be fun to just see what a $125 midsize Chinese saw could do with an echo 20in bar and sthil chain. Ive literally every day for 2 and a half months bein cutting wood for winter and I'll tell you this thing is solid, starts 2nd pull every time and has more power then should be ran through a 20in bar. I've tore it down after the first week using it just to make sure all is well and cause I'm a curious one and there were 0 issues and the fit and finish of everything was every bit as good as any 3 of my sthil saws. I have bein nothing but impressed with this Chinese saw. So I'm about to order a 660 clone kit myself with the big bore and a factory sthil piston pin and bearing put her together and give er hell for only $200 why the hell not.
Not everybody has the cash to splash like you do for a name brand saw.
No it's just that the rings are seized into the groove s
I mean every vehicle I own his car operated so I know how to adjust carburetors decently. I know that I had to replace the piston and rings because they were shot like absolutely shot. Right in the beginning of the shred somebody said I probably f*** the top end and I'm thinking that's actually the issue. I've actually got quite a few songs that I get from people here and there for free are 20 bucks or so and you know it's usually just a car to fix them if it was just that I would have had it running good by now. I will say that in the short time that I've had this saw, I've made a pretty decent amount of money with it. If all I have to do is throw another $30 top end on it it's still worth the money to me. The only new thing I've bought for is I bought an oem carburetor that's still in the mail and I don't regret doing that even if the carb isnt messed up. The seller sent me a piston, rings, the new muffler, etc. Free. I'll just throw another top end on it, and save the money from the next job or two and buy a Stihl Ms 661
2 strokes carb tuning is different to a 4 stroke, that saw would have told you it wasn’t happy before it stopped running, but you didn’t catch it.
Just curiosity, why does the aftermarket do not 4 stroke at the same rpm as a OEM? I am new to these saws, just replaced rings on a k970 with Caber rings and starting on a TS420 chopsaw that I am using an aftermarket upper. Ts420 is a basket case and just trying to learn on it.
