I picked up a 1995 craftman diamond i/c commercial mower, model # 917.372833 , it only has 20 psi cold, throttle closed, I popped head off everything is functioning, piston and valve movement, I poured a cup of oil in the cylinder bdc,and let it sit a couple hours(on end of course), level stayed the same, hopefully thats an indication ring is ok. I know for sure it needs a new spark plug armeture or magneto, no spark.
Do you know if these engine's have the compression release features,hence 20 psi.
Do you know if these engine's have the compression release features,hence 20 psi.