motoman.5150
ArboristSite Operative
I have a 365 with a big bore kit and a 2171 with a big bore kit both with no base gaskets my 2171 has over 180 lbs. of comp. yet my 365 only has 160 also have 2 350's both with brand new cylinder kits, same one, and 1 has170 lbs. and the other only about 140 can you tell me why they are so different, the only facterfor the comp. is rings and combustion chamber and it s the same,I might be able to understand the first 2 saws because the 2171 is good and broke in but the 350's were put together on the same day ????