Looking at a used 372XP for sale. It starts and runs okay....kinda dirty and in need of some TLC and the compression is 130psi. Isn't this on the low end of comfortable? I'm a newbie with the saws so bear with.....could it just need new rings? I have requested pictures of the piston and cylinder from the seller.
It is a bit low. Their gauge could be off or something else. Don't get hung up on compression readings alone. If the piston and cylinder looks good then don't worry about the compression.
Agreed... Many of these didn't have super high comp even when new. If the cylinder is good, a new piston and rings will get it right back where it needs to be.. Pretty cheap too..
I agree with these fellas ! I use to work on mostly old Homelite SXL's and XL-12's and such . They would always get on my work bench with 120 psi . Sometimes as low as 90 psi . They ran really well actually at 120 psi..which was probably not too far from what they had new . The 90 psi ones ran good too ! Recently sold a Husky 261 with 115psi...the thing ran super actually !!! Saws always seem to let a fella know when the psi is too low to go
I have a 372xp x torque model with 130ish compression. I think 135 to be exact? It runs like a violated ape. I have a cancer ring to put into it but it runs so well I have not torn into it yet to install it.
130 isn't terrible as noted. A set of Caber rings is less than $15 and will make it run better than new
Funny thing about the 372's.. They like a little extra compression, but their design don't need 170-190 pounds to really haul the mail.. I've seen stockers with 140 that really put out some power. Their design is to move fuel and air, and they do a real good job at it... A little extra comp is just some added torque... They'll idle a bit lower too.. Like a dirt bike...
