Trent Curtis
ArboristSite Guru
Been a long time arboristsite fan- always googles and searched threads for info
I currently run an MS 460 and a 372xp.... Just found a 394xp-
Before I did anything I tore it down and cleaned it.
Here are my questions:
Cylinder and piston look good, compression test came out to 155psi. This seems low. I can pull the saw no problem even without using the decompression valve. I'm thinking I might need to slap on a new set of rings.... Thoughts?
Secondly..... I set the tune to 2500 rpm at idle, and 10,700 at wot.
I run 11,500 on my 372, but I'm Leary of heating up these big saws.
Running a 36" bar, What is a good tune for this saw? Is 11,500 ok on these big jugs? Or is it better to keep them a little fat?
Thanks in advance! Hopefully this video will load ok...... This is after the tune up.
I currently run an MS 460 and a 372xp.... Just found a 394xp-
Before I did anything I tore it down and cleaned it.
Here are my questions:
Cylinder and piston look good, compression test came out to 155psi. This seems low. I can pull the saw no problem even without using the decompression valve. I'm thinking I might need to slap on a new set of rings.... Thoughts?
Secondly..... I set the tune to 2500 rpm at idle, and 10,700 at wot.
I run 11,500 on my 372, but I'm Leary of heating up these big saws.
Running a 36" bar, What is a good tune for this saw? Is 11,500 ok on these big jugs? Or is it better to keep them a little fat?
Thanks in advance! Hopefully this video will load ok...... This is after the tune up.