What should the compression be? One of my 029's is only 90 psi. The only reason I checked it is because it will not start hot....period. Even if it's been run for 5-10 mins, and stops it cannot be restart. My other 029 shows about 100-110 psi and works great. I think 90 is too low. I did check the compressions on a cold engine, I may check hot as well tomorrow.