Good day all,
I have a 2006 Stingray 185lx with a Volvo Penta 3.0 GLP-D, SX drive. New to me, unsure of previous maintenance. The boat is gutless and cannot get over 3000rpms. So far I've tried plugs, cap, rotor, fuel filter, compression is 145-140-135-140
I have been using regular gas (10%...