Aftermarket Outboard Engine Service Manuals

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Aftermarket Boat Motor Service Manuals Resources and Information PartsVu stocks a wide selection of aftermarket boat motor service manuals to assist you with maintaining your outboard. These aftermarket repair manuals are certified by the outboard engine manufacturers to ensure accuracy and consistent information. Need more help servicing your outboard engines? We also publish helpful resources to assist you, like the following: Yamaha Outboard Maintenance Parts Charts Yamaha Outboard Service Schedule Mercury Outboard Maintenance Parts Charts Mercury Outboard Service Schedule MerCruiser Inboard Maintenance MerCruiser Maintenance Parts Library Looking for more marine products? Browse our complete selection of marine products and accessories or aftermarket outboard parts . Aftermarket Outboard Engine Service Manuals FAQs How can I improve my outboard motor performance ? A boat that’s over-propped can cause your outboard’s highest RPM to be lower than the wide-open-throttle RPM recommended by the manufacturer. This happens because the higher pitch causes more resistance to the water, keeping your propeller from revolving as freely as it can. The wide-open-throttle RPM is usually between 5,000 and 6,000 RPM, but refer to your owner’s manual to be sure. Running your RPM below the recommended range will make the engine work harder. This increased workload causes your combustion temperature to rise and will stress your boat’s internal parts. An under-propped boat can also be harmful. If the engine spins above the recommended RPM, it’ll wear down the parts, and your engine won’t last as long. You can adjust your engine’s wide-open-throttle RPM range by changing the propeller pitch. Increase the propeller pitch to lower the wide-open RPM or decrease the pitch to raise the wide-open RPM. It’s also helpful to experiment with different propellers. Find propellers within your budget until you reach the performance you’re striving for. One way to know if your boat is reaching the