I´ve read many threads with questions of correct compression. Standard answer always is 100+ psi and within 10% on all cylinders. My Clymer manual says same thing. Is there no place to look up exact new compression and factory allowed tolerances, as in many car manuals.<br /><br />I tested compression om 8-10 motors now, never met any with 100, but 150, 125 and 135 PSI. What would factory compression be i. exa. for my 1991 Evinrude 115Hp ( now 3x125 and 1x135 )and my 1988 40HP rude ( now 148/150 ) ? Isnt wear from 150 PSI down to 100 much to accept ?