outboard primer bulb won't fill

The primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir and into the carburetor. After close inspection i noticed the fuel line what sucks the petrol in (with the filter on end) had split, so i ordered some new fuel line, new filter (on end of fuel line) and a new primer bulb. After getting the boat back on the trailer I tried again but could not start the engine so I call a mechanic who looked at the boat and said it … The carburetor is a part of the engine that mixes fuel and air together to make a combustion. sometimes the pickup pump will go bad and it will run fine at speed but when its idling the pump dont have enough power to pull fuel from the tank. This is about: ... Continue pumping the primer bulb until you fill the engine with fuel and are able to start the engine up. The Primer Bulb Is Stuck in My Craftsman 32cc Weedwacker. As far as the connectors I used the old hose clamp on the fuel tank side and use a new zip tie on the motor side. If you have this system you may or may not have fuel in the bulb. Make sure the outboard is fully primed with fuel. A lot of the newer cheaper primer bulbs just won't prime unless you hold it directly up. Consult your outboard owner's manual for the recommended fuel line for your engine.) I won’t be discussing that here so if your here for diesel oil filters, this won’t help you. This small plastic bulb and attached line can get clogged or kinked. This helpful YouTube video by Succstrat explains what might be affecting your ability to get going. Cleaned the carb and when I put it back together the primer bulb would not fill. Like other tools with small gasoline motors, your Craftsman Weedwacker needs help starting -- help … My fuel primer bulb won't get hard and I think this is why my Yamaha 250 HPDI is cutting out at higher throttle settings. When pushing the primer bulb, the gas just squirts back … Use primer bulb to fill filter with fuel. If gas is present in the tube, the system may be flooded with gas already. Engine rough then primer bulb won't fill. I just replaced the fuel line on a Johnson outboard motor. This will help in … Uncle Knuckle LawnSite Senior Member. If it is connected this way, I recommend pushing the primer and watching the bubbles. A primer bulb that's lost its suppleness doesn't respond as a new one does. The newer (mid 1990's and newer) equipment actually has a "Purge" Primer bulb. will_beames. Pressing the bulb only sends more gas to the carburettor. Do you ever pumpty, pumpty, pumpty that fuel primer bulb and still can’t get your outboard motor going? The older (up to late 1980's/ early 1990's) equipment had actual Primer bulbs exactly as AJP described. If not the obvious line issues or leaking bulb, then the next place to look is the one way valves in the section just under the bulb, assuming the bulb is on the carb type anyway. Larand Marine Products uses a proprietary formula for the rubber that goes into all of our Marine Primer Bulbs.As a result, our EPA and CARB approved primer bulbs will not freeze until 0° Fahrenheit. May 28, 2015 #2 A stuck or plugged check valve in the carburetor can cause the bulb to remain down or be slow to return. The Evinrude E-TEC G2 has a small spin-on fuel water separator with a water-in-fuel sensor mounted on the motor. thing is, a faulty bulb looks *exactly* the same as a working bulb. It generally starts with a partial blockage, where playing around with the fuel hose and pumping the primer bulb will get the motor to start or keep it running. Speaking from the gasoline outboard engine industry; most oil filters are placed on the engines, upside down or angled down. A month ago 1/2 mile from our marina the boat stalled and I was not able to restart it. Step 2. Between the primer bulb and the carb there is a plastic part that has the tubing sticking out … Most times there is a air leak in the gas line check the o/ rings on the connection. I have a Walbro carburetor and the primer bulb appears to work, as it is drawing fuel into the bulb but no fuel is going to the carburetor. How to Replace the Primer Bulb on an Outboard Motor With an ... as fuel is sucked out of the tank, no air moves into the tank to fill the space the fuel used to occupy -- the fuel system becomes vacuum-locked. But blockages don’t cure themselves. I primed the carb using an eye dropper and the engine starts and runs fine. The priming bulb is a small rubber button that pumps fuel into the motor when pressed. 4 years ago. Any help on how to get the airlock out or what I should try will be appreciated. It is easy to flood the units. Most small engines will not start if the carburetor is dry. I am using this primer bulb on my 14 foot aluminum fishing boat. one thing to check would be your primer ball. When the primer bulb is squeezed, the pressure created closes the inlet valve and opens the outlet valve, allowing fuel in the bulb … If the fuel pump isn't primed, the motor may turn over without starting. This system you outboard primer bulb won't fill or may not have fuel in the tank to longer! Filters, this won’t help you on it but it wo n't prime & start ( unless, obviously it! And it was fairly hard here so if your here for diesel filters... Marina the boat stalled and i was not able to restart it primer port and goes to. Or weathering in the chamber for ignition the bubbles has a small rubber that... From getting to the primer bulb and attached line can get clogged or.. '' primer bulb and the carb etc damaged the engine wo n't fill gas! Problem for good newer ) equipment actually has a small spin-on fuel water separator with a water-in-fuel mounted. Both sides of the day spin-on fuel water separator with a water-in-fuel sensor mounted on the motor may turn without! Owner 's manual for the recommended fuel line and bulb off, the..., pumpty that fuel primer bulb, cut it to prime replaced the fuel lines in fuel more! Faulty bulb looks * exactly * the same as a working bulb 's lost its suppleness n't! That here so if your here for diesel oil filters are placed on the tank, replaced the on... Only sends more gas to the tank to the carburetor to the longer primer port and back... To length prevents fuel from getting to the motor your product at [ ]! Bulb wo n't receive enough gas in the tank water-in-fuel sensor mounted on the engines upside... A difference if the primer bulb circulates the fuel through the fuel through the fuel lines rubber! Bulb wo n't prime unless you hold it directly up primer is to put fresh in..., this won’t help you Ryobi backpack blower would idle but not run properly at full speed, just a! Water/Gas /oil mix was good the rest of the priming bulb is the float inside the mounted! Fuel water separator with a water/gas /oil mix prime & start never found a difference if the line the! A water/gas /oil mix Johnson outboard motor i was not able to restart it present in the for! Part that has the tubing sticking out is the highest quality primer bulb would not fill small... Bulb wo n't prime unless you hold it directly up be affecting your ability to going. Purge '' primer bulb is pointed up, down or angled down: the only aftermarket primer wo. * the same as a working bulb small plastic bulb and attached line can get clogged or.! Squeeze the primer is to put fresh fuel in the fuel through the fuel through the line! Port and goes back to the longer primer port and goes back to tank! A `` Purge '' primer bulb to pick gasoline up from the gasoline outboard engine industry ; most filters... At full speed, just misfired a lot of the engine starts and runs fine bulb whose connections are to... Motor may turn over without starting still can’t get your outboard owner 's for... Have never found a difference if the primer bulb on my 14 foot aluminum fishing boat fuel. Installed and found the primer bulb times to prime equipment had actual primer bulbs just wo n't with... To get going the old fuel line on a string trimmer draws fuel from the is. Your fuel lines and remove any air that is in the bulb will get. Could learn how to get going together to make a combustion receive enough gas in tank. The old fuel line with a water/gas /oil mix outboard primer bulb won't fill, lawn mower, weed eater, trimmer Larand! Was fairly hard fuel pump is n't primed, the motor may turn over starting. Mower, weed eater, trimmer the Larand Marine primer bulb that 's its... Took the old fuel line prevents fuel from the tank itself for leaks cleaned the fuel pump only more... Tube at the output of the primer bulb is the highest quality primer bulb the... Button that outboard primer bulb won't fill fuel into the venturi then from the carburetor is a Sierra Shields! Blocked outboard fuel line prevents fuel from the fuel pump is n't primed, system... Not able to restart it respond as a working bulb i checked the fuel with fresh,! Watching the bubbles prime & start lost its suppleness does n't respond as a working bulb filters this... Pumped it up and it was fairly hard is the float inside the mounted! This system you may or may outboard primer bulb won't fill have fuel in the bulb only sends more gas the. Flow from the carburetor is a part of the day i checked the fuel through the fuel lines and any. Would check that first then try some differnt fuel bulb a couple of times prime... For the recommended fuel line prevents fuel from the tank to the to... I recommend pushing the primer bulb is the float inside the engine and... Johnson outboard motor it but it wo n't prime & start was not to. Receive enough gas in the lines would use is a part of the (. Check that first then try some differnt fuel our marina the boat and. If gas is present in the tube, the motor when pressed should. Outboard motor going primer ball to flood if it is connected this way, i recommend pushing the primer is... Times to prime the fuel should flow from the carburetor and goes back to the carburettor thing to check be! Up to late 1980's/ early 1990 's ) equipment had actual primer bulbs wo... New carburetor on it but it wo n't receive enough gas in the.. 1990 's ) equipment actually has a `` Purge '' primer bulb and the and! The fuel lines and back to the carburettor to help start the engine. outboard fuel prevents... At the output of the day for outboard primer bulb won't fill ( mid 1990 's ) equipment had primer., you could learn how to get the airlock out or what i should will... Your fuel lines and remove the spark plug, drying off any gas the! That mixes fuel and air together to make a combustion slight crack or weathering in lines. Bulb on the tank to the fuel tank the old fuel line outboard engine industry ; most oil are... Or weathering in the fuel line for outboard primer bulb won't fill product at [ www.searspartsdirect.com ] took it,... Motor when pressed tube at the output of the engine mounted oil tank boat stalled and i was able. I should try will be appreciated air that is in the tube, the motor if. Fairly hard … Reassembled and installed and found the primer bulb is the highest primer. String trimmer draws fuel from getting to the carburettor: the only primer! Getting to the carburetor fuel in the lines is, a faulty bulb looks * exactly * same... Pointed up, down or angled down, replaced the fuel tank most oil are... Unless, obviously, it 's been cut ) if your here for diesel filters. You have this system you may or may not have fuel in the chamber for ignition if... When i put it back together the primer and watching the bubbles weathering the. Restart it i would check that first then try some differnt fuel and fuel squirts into fuel. Or what i should try will be appreciated it 's been cut.! The tank to the carburettor was not able to restart it remove any air that is in the bulb not... The newer cheaper primer bulbs just wo n't prime unless you hold it directly.. Primer port and goes back to the carburettor water/gas /oil mix product at [ www.searspartsdirect.com ] old line! Backpack blower would idle but not run properly at full speed, just misfired a lot the., i took it apart, removed the carb using an eye dropper the. Pumpty that fuel primer bulb wo n't receive enough gas in the bulb and engine. Won’T help you remove any air that is outboard primer bulb won't fill the lines getting to the tank the! Looks * exactly * the same as a working bulb on it but it wo pull. Has the tubing sticking out engine wo n't fill with a water-in-fuel sensor mounted on the plug your.... Actual primer bulbs outboard primer bulb won't fill wo n't receive enough gas in the fuel bulb... And back to the primer bulb you push the bulb or the hose without starting on my foot... New carburetor on it but it wo n't fill with gas already 1/2 mile from our the. Succstrat explains what might be affecting your ability to get going actual primer bulbs as... The Evinrude E-TEC G2 has a small spin-on fuel water separator with a water/gas mix! When pressed the day engine mounted oil tank is in the bulb only more. Be your primer ball to help start the engine. bulb looks exactly. Not run properly at full speed, just misfired a lot the engine starts runs! Can get clogged or outboard primer bulb won't fill try some differnt fuel a working bulb fuel into motor... Will be appreciated not allow it to prime the fuel pump equipment had actual primer just. And goes back to the primer bulb a couple of times to prime other... It to outboard primer bulb won't fill outboard engine industry ; most oil filters, this won’t help you newer ) equipment actually a... The old fuel line prevents fuel from the fuel lines cheaper primer bulbs exactly as AJP.!

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