I am getting the boat ready for this coming boating year and just took boat to the lake. Boat ran out just fine but noticed that when I come off the gas into neutral the motor jumps up to about 2 grand. I open the engine compartment (sorry, Volvo penta 5.0FL 1995; duo prop) and manually tap on the linkage and it comes back down. Shift lever is smooth but does not seem to return carb. linkage back to proper idle RPM's. If the RPM's are high will it be difficult to go from forward to reverse or into neutral? Thank you.