What should the compression be on a Mercury outboard?

What should the compression be on a Mercury outboard?

What Outboard Compression Test Results Mean. Results vary depending on whether the outboard is a Four-Stroke or a Two-Stroke. Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around 110-130 PSI. Here is everything that you need to know about outboard compression tests.

How many horsepower is a Mercury 50?

Specifications – 50 EFI

How much does a 50 Mercury cost?

Mercury Motors

Is 90 psi a good compression?

They shouldn’t vary more than 10% from highest to lowest. That all said, 90 psi is too low, even for a low compression engine.

Is 150 psi compression good?

150 is realy good compression.

What is a good compression PSI?

A compression test reveals the condition of your engine’s valves, its valve seats, and piston rings and whether these parts are wearing evenly. Healthy engines should have compression over 100 psi per cylinder, with no more than 10 percent variation between the highest and lowest readings.

How heavy is a Mercury 50 hp outboard?

The Mercury 50 hp outboard is capable of producing 5,500 to 6,000 rpm. The total weight of the outboard motor is 255 lbs.

How fast can a 50 hp outboard go?

You have a couple options though. Change your prop(you will see a little increase) or max the hp(you will see more increase). It beats the heck out of rowing either way. I have a 16 foot boat with 50 hp 4 stroke Merc, and it tops out at about 30-35 mph depending on how much weight is in the boat.

How much is an inch of mercury in psi?

›› Quick conversion chart of psi to inch of mercury. 1 psi to inch of mercury = 2.03602 inch of mercury. 5 psi to inch of mercury = 10.1801 inch of mercury. 10 psi to inch of mercury = 20.36021 inch of mercury.

How much pressure is 1 pascal of mercury?

The answer is 2.0360206576012. We assume you are converting between inch of mercury [0 °C] and pound/square inch. The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00029529983071445 inches of mercury, or 0.00014503773800722 psi. Note that rounding errors may occur, so always check the results.

What’s the compression range on a Mercury 25 HP cylinder?

They not only vary from the reporting individual but from manufacturer to manufacturer. For instance, a fully functional Mercury 25 Hp cylinder compression value may be significantly different than that of a Johnson 25 Hp. Its also rather hard to find where a manufacturer will say the compression range should be from this psi to that psi.

What should the PSI be on an outboard?

Results vary depending on whether the outboard is a Four-Stroke or a Two-Stroke. Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around 110-130 PSI. Here is everything that you need to know about outboard compression tests.