Hey Tony and Javelin,
I`ve had a guy contact me who has had his 962 sieze three times in less than 10 gallons of fuel. Piston is scored on both intake and exhaust and has been rebuilt under warranty by the dealer twice. He claims to use Stihl oil at 50:1, he also said that the dealer sets the carb with a tach and then he(owner) doesn`t touch it. He also stated that this dealer told him that this is common with the bigger Efcos? this is news to me, have you guys got any ideas? We`ve covered the typical causes of lean seize and overheating and haven`t found a likely suspect yet although the scoring of both sides suggests some extreme overheating to me, or of course, plain gas.
Thanks,
Russ