After Not Running My Outboard Two Hours Do I Need to Sqeeze Tne Gas Ball to Start Again

Sometimes I run beyond someone's gunkhole that will merely non keep the fuel primed up. Which becomes a hassle and you have to pump the primer bulb every time you close the engine off! So what do y'all do, y'all enquire?

Why Does My Outboard Lose Prime? Outboard engines lose fuel prime number because of an air leak in the fuel system. Somewhere betwixt the engine and the fuel tank.

Here are the best and quickest means to troubleshoot and resolve this issue!

What Are The Symptoms of An Air Leak?

There are really merely a couple of symptoms for a leak in the fuel lines to the engine. Either the engine randomly runs out of fuel and dies. Later on turning the engine off and letting it sit for a couple of minutes, you have to prime number the primer bulb upwardly once more.

Or there is a running issue, where the engine is not getting broad-open up throttle and spits and sputters when you lot get up and going. Aerated fuel tin cause a running event, but this can get tricky and send you off on a rabbit chase for a problem that is maybe not fifty-fifty related! We volition focus on air leaks and keeping the engine from losing prime number in this article.

Understanding Different Engines

There are unlike causes to this depending on your engines. If you have 4-Stroke outboards or fuel injected motors, so this will exist a common issue acquired by an air leak. 4-Stroke engines or fuel-injected engines will more often than not never lose prime number. The engines store fuel in either a VST or an FSM. (What is an Outboard FSM or VST?)

With a sure amount of fuel stored in the VST, the engine will fire upwards and run right when you hitting the primal switch. Then the electric fuel pumps will begin sucking fuel out of the tank, and you don't actually notice if at that place is a leak or not. That is unless it is a pretty bad leak!

2-Strokes on the other hand, that is a unlike story! Carbureted engines volition mostly have this problem and information technology will be a lot more noticeable, in a shorter period of fourth dimension. By and large, if there is no result, yous tin plow the engine off for a couple of hours and never lose prime. But if y'all allow the engine sit overnight, you lot accept to prime it in the morning.

About of the time because of the carburetors design, the fuel can siphon bank into the tank and you will accept to prime it upward before every cold or next twenty-four hour period first.

Visually Inspect The Fuel Lines

The get-go affair nosotros want to do is a visual inspection of the entire fuel line. Starting at the engine. Follow along the fuel line moving it around and looking at it.

Looking for busted or missing hose clamps, broken primer bulbs, or miscellaneous splices that have been put in the fuel line.

Extensions in fuel lines, to save onetime fuel hoses, create weak spots. For every place that the hose is cut and continued to something, this is a location for a leak!

Check over the boat fuel filter and its fittings. Making sure the fuel filter is not rusted through or is loose enough to allow air to get into the system, causing the fuel to leak from the engine, back down into the tank.

Where To Beginning Troubleshooting

Nosotros will want to start our troubleshooting procedure by obtaining a small say i-human foot long articulate hose and a coupling hose affront, that is the same size diameter as your fuel line. We need to have off the engine cowling, and so locate where the fuel line is coming into the engine. Discover the first place it connects to, generally to a fuel filter, and disconnect the fuel line there.

Insert the articulate hose into the fuel line, prime number up the engine, and start it up! Let information technology run for a niggling while and carefully sentry the fuel passing through the clear hose.

If you see a ton of air bubbles coming from the boat fuel tank side of the hose, then we are hot on the trail to solving this event!

Follow The Bubbles!

Now, remove the clear hose from the fuel line and reconnect it the way information technology should be. Tighten the clench or null tie, and move down the fuel line towards the fuel tank. When yous hit the next coupler, primmer bulb, or connection signal on the hose. Reinstall the articulate hose at that place and retest for more bubbles.

You can also skip a skilful portion of this process if you desire to go directly to the tank and test earlier post-obit the bubbles. If y'all suspect the tank, and so become ahead and directly connect the articulate hose to the pickup tube hose affront.

Retest and encounter if you accept bubbles. If in that location are bubbles there, then there is something going on with the pickup tube or the fittings in that location at the fuel tank.

If in that location aren't any bubbling, and then become ahead and go back to the beginning where nosotros started. And motion down the line with the clear hose, until you striking the indicate where the bubbles stop.

Well-nigh of the time, with the visual inspection or process of moving that clear hose downwardly the line. You will find a cleaved hose barb fitting or croaky pick up tube.

I've fifty-fifty seen corrosion on the fuel filter subclass and an air leak on the back of the bracket. You would never be able to tell from just looking at it. Just as I moved the clear hose along the line. Smash! Bubbling on one side, and direct solid fuel on the other!

Fix-It & Get It Done!

At present that you have located the leak, ready information technology! In that location is not much more than to it than that! Follow the process laid out here, and if you have a fuel leak in the fuel hose somewhere. Yous will notice it and then cut the end of the hose off and put a new clamp on, modify out the fuel filter, the bracket, run some new fuel hose, and get dorsum on the water!

Something To Know About Fuel Hoses.

Know that not all fuel lines are made as! If y'all have blue, or gray fuel hoses. Make a note and await into the hose to run across if the within of the hose has separated from the exterior of the hose. Blue and grey fuel lines, (mostly the blue lines), are known for separating.

The almost common cause of this is ethanol, which volition speed up the deterioration. But the hoses themselves are just cheap!

If the inside separates from the exterior when the fuel pump kicks on or is running, it tin suck the within liner close and the engine volition run out of fuel. It tin too cause all kinds of running issues and problems that can drive you basics!

I would propose getting rid of those hoses and replacing them as soon as y'all tin. Ride them out when y'all can, just take note that this will eventually happen to the hoses.

Properly Priming a Primer Bulb!

Something that a lot of people miss is improperly pumping the primer seedling! Yeah, there is an wrong way of priming the primer seedling! Who would have known?

If the primer bulb is held horizontally. Then nigh of the fourth dimension, it will not prime anything at all! You tin pump and pump and pump until your hands are shaking, only exist information technology known, you own't pumping nothing merely air!

Belongings the primer bulb vertically is the proper way to use the primer seedling and ensures that if there is fuel close, it volition suck information technology upwardly.

How To Prime Up Fuel When Primer Bulb is Air Locked

Another affair to know most primer bulbs is that if the fuel leaks to far back into the tank. The primer bulb can't suck it up without removing it.

If the primer seedling airlocks and won't seem to get any fuel:

• Disconnect the fuel line from the engine side of the bulb. With the arrow pointing to the side where you pulled the hose off.
• Concur the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely complanate.
• Then, stick your finger on the hose barb.
• Let go of the primer bulb.
• Then, as you squeeze it once more, remove your finger and quickly put it back on the barb when the primer bulb is completely collapsed.
• Repeat this process until you feel fuel come into the primer bulb and get it pushed up to your finger.
• And so reconnect the fuel hose on the bulb and prime that bad boy up!

Hint: If you pump and pump and pump and never get whatsoever fuel out. The fuel tank is empty, or the pickup tube is not submerged in fuel and you need to fill up up the tank or audit the fuel pick upwards tube.

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Source: https://www.bornagainboating.com/outboard-lose-prime-how-to-fix-it/

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