Chainsaw rebuild problem?

[Let her rip]

Here is a clone of a 460 with 3/4 wrap. Running VPracing oil 40:1

There is no sign of heat damage to the underside of the piston nor the crank on this one. Only on the exhaust side of the piston is all scratched from rubbing against the cylinder wall.
Unfortunately we may never know if this thing would run again as my friend has now decided to just invest in a new saw rather than repair the old one

 

[Let her rip]

Went with a Raider RD-GC31, Raider are a cheap and reliable brand over here with a wide range of tools, used their saws before they are decent. Made in Germany too, for real this time . This was $260 delivered

https://www.euromasterbg.com/en/c/verizhni-trioni-225/gasoline-chain-saw-450mm-2200w-5mm-gcs31-5321

 

[Let her rip]

First off, there is no way you'll be able to find, much less buy, actual parts for this thing. So, you buy a $15, 44mm piston. How do you know it will actually fit? Just matching diameter won't cut it.
Chuck it. Buy a real saw.

There are plenty of cheap 44mm kits for 52cc engines out there that are plug and play. This one hilariously states "made of metal"
https://imall.com/product/44MM-52CC...express.com/1005007852211286/144-355225584/en

 

[stihltech]

If all you want to do is play with a saw, keep getting clones. They will last at least a couple cuts. Well, some will.

 

[Let her rip]

Went with a Raider RD-GC31, Raider are a cheap and reliable brand over here with a wide range of tools, used their saws before they are decent. Made in Germany too, for real this time . This was $260 delivered

https://www.euromasterbg.com/en/c/verizhni-trioni-225/gasoline-chain-saw-450mm-2200w-5mm-gcs31-5321
View attachment 1234086

Sorry made a mistake, not $260 but $50 delivered. It was 260 Romanian lei

 

[Let her rip]

If all you want to do is play with a saw, keep getting clones. They will last at least a couple cuts. Well, some will.

Never bought a clone in my life. The Raider chainsaws are good quality I used one to cut up 10m3 of firewood last year and it didn't miss a beat

 

[GMB74]

That Raider looks like a typical Chinese made copy of a Zenoah G4500. They are all over ebay and Amazon around here and sold with various names, colors and sizes ranging from 45-68cc. The stated size is usually not the actual size of the engine and quality ranges from decent to horrible POS. I got one this winter to play with, and so far it has been pretty darn good. Not something I would want to depend on as my only saw, but good enough to cut firewood and cheap to modify and experiment with. If you do not have the tools, skills and inclination to work on chainsaws I would not recommend them, it will cost more to pay someone to fix it than it would to buy another new one.
Chinese quality control and product support is non-existent. Some people get lucky, get one that works and they are happy. Some don't.

 

[JimR]

I forget the brand, I will post some pictures when I get it. The guy has a repair shop and uses these parts so there's a good chance they are reasonable quality knock offs. Should be a straight fit
It wasn't straight gassed I mixed the fuel myself 50:1. Burnt out after about 30 minutes cutting through some lumps of hard wood. Wasn't aware it was a fake stihl or I would have adjusted the carb so it didn't rev so high and not worked it so hard

Run 40 - 1 mix in it.