Hi,
Was not able to get this Saw tuned up so wanted to check for pressure/vacuum.
Pressure held great but vacuum. I would pump down to 15 then guage would rise to 10 and hold?
Wondering if this normal or what others have found doing vacuum tests???
#2
ILENGINE
15 maybe pulling the crankshaft seals away from the crankshaft causing a vacuum leak until the vacuum gets low enough to reseal. The vacuum testing on Makita was never exceed 7
#3
seagiant
Hi,
Thanks, I was told at least 15 inches on Vacuum and 7 PSI on Pressure???
Admittedly your theory sounds very good!!!
Thanks again!
I'm now going to look for a Carb problem, tested fuel line and it's good!
#4
seagiant
Hi,
Well, got this Saw running and tuned.
Bought a Chinese Carb, which I have actually had good luck with on different machines.
Could not get this one to work correctly, so looked for a used OEM and found one.
Put a rebuild kit in, and just to be sure, new fuel line and filter.
