I have 2001 Cobalt with 5.7 GSI/Volvo Penta DP-SMTD 1.95 (3869036) and having some issue with cruising RPM and getting the boat on plane. The engine has ~400 hours.
My boat never had any issues but last week I noticed slight RPM variation at the cruising speed of 25MPH. (3000RPM to...
