3120 compression?

[MR4WD]

I've got a pretty gnarly 3120 that's getting harder and harder to start. Just curious where the 3120 compression should be at?

Also, am I correct in thinking that the 3120k and 3120 xp cylinder are the identical?

Thanks,
Chad.

 

[rickyrooster]

I like to see a min. of 150lb. on my saws. they will still start ad run down to 100lbs or so but I would at least rering it if its low. A saw needs compression to draw the gas into the carb. Rick!