How long can you run a boat motor on muffs?
Don’t run the engine unattended. Keep an eye on the muffs and make sure they don’t slip off of the water intakes. Regardless of your task, it’s unlikely that you’ll need to run it more than 10 to 15 minutes.
What happens if you don’t flush your outboard?
What we find is if you do not flush your motor as per the manufacturer’s specifications you will over time get a build-up of residual salt, and that salt will crystallize in the water flow galleries and being pressed against the alloy structure of the head they will slowly corrode and pit.
Can you rev an outboard on muffs?
Just don’t over rev it! Never take it above idle. They are made to be loaded above anything else. I have seen a few blow while revving on the muffs.
Should you flush your outboard motor after every use?
Most outboard manufacturers recommend a freshwater flush after every use in saltwater to clear the cooling passages of salt residue and scale that can accumulate and impede the flow of vital cooling water through the engine.
How long should you flush a boat motor?
Flush for at least five minutes at an idle speed, with the engine in a vertical position. When using the flushing port, it is not necessary to run the engine. Keep the engine vertical after flushing so that all water drains from the powerhead.
What RPM should a boat idle?
1500 RPM is normal for idle. You can see some fluctuation (1500-1800), especially if plugs get old or you are out of the water on the hose with no resistance on the impellers.
Why does a boat motor need water?
Note: Never start an outboard motor without a water supply—it must either be in the water or connected to a hose providing water. Water lubricates the vanes of the rubber water pump impeller, and running the motor without a water supply for even a few seconds can damage or destroy the impeller.
How long should you flush an outboard motor?