The piston is fine. Running 20:1 is even richer with oil. The first number is gas the 2nd number is oil, 25:1 is 25 parts fuel to 1 part oil. The higher the first number means less oil, the lower the first number means more oil or closer to a 1:1 ratio. If your good with your tuning you can run less oil like 32:1 and be ok but if your tuning isn't good you can fry your engine....
Klots is a castor oil which I've found to leave alot of carbon on the piston, switch to a synthetic 2 stroke oil if you plan to leave the engine at 25:1
The piston is fine. Running 20:1 is even richer with oil. The first number is gas the 2nd number is oil, 25:1 is 25 parts fuel to 1 part oil. The higher the first number means less oil, the lower the first number means more oil or closer to a 1:1 ratio. If your good with your tuning you can run less oil like 32:1 and be ok but if your tuning isn't good you can fry your engine....
Klots is a castor oil which I've found to leave alot of carbon on the piston, switch to a synthetic 2 stroke oil if you plan to leave the engine at 25:1
What’s a good two stroke synthetic oil that you would recommend ?