Jimmy Jig. YouTube,  Note: Your browser does not have JavaScript enabled. TMS Marine Parts: Fuel System Reference Guide ; Yamaha Marine Parts: Primer Bulbs ; Writer Bio. Post Cancel. Supported videos include: 08-22-2016, 07:56 AM. Comment. I'm thinking of elimina... Echo 2100 power blower, primer bulb wont fill with fuel. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. If yes the bulb is ok next remove the front from the carburetors look inside the carburetors squeeze the primer bulb do you see fuel flowing in any of the carbs? Give it a good thorough looksy on all the fuel lines. 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. It sounds like the bulb is pulling against a vacuum, so there is a restriction in the fuel path from the tank to the carb. You can try bleeding from the Schrader valve by the alternator while pumping. The same goes for fuel lines. How do you start a lawn mower without a primer bulb? Asked By: Hermenegilda Seijas | Last Updated: 16th March, 2020, As long as the pump is not putting out over 7psi there is no. there is a fuel pump in the carb operated by pulses from the crank case, the diaphragm in it can can go bad also. As long as the pump is not putting out over 7psi there is no need for return. Do I have to replace it? Senior Swabby. Be sure the arrow is UP. Answered in 5 hours by: 7/14/2012. And you'd easily feel the hard bulb when you push it in. Then most of the time, it will not prime anything at all! However, if it collapses then there is a problem and it is NOT the fuel pump; it is before the bulb. The primer bulb will not stay hard once the carbs start to use fuel. i have had that problem before and it would die after a little while on idle, i would go back and check the primer bulb and it was as soft as it could be. 06-17-2012, 05:02 PM. 2. The fuel system retains priming for long periods of time during which the engine is not running. Henry P. for Model Number 35874122. How do I change the bulb in my Stihl primer? Sequoiha. The bulb is NOT suppose to stay hard. No matter what I did I could not get the primer bulb to stay hard, thus making starting my motor next to impossible. Tags: None. Hi my name isXXXXX will assist you.. Sequoiha. 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. one thing to check would be your primer ball. You may need to fix or replace your … Dailymotion,  At Your request primer bulb poulan, we load the price comparison for products primer bulb poulan. It only delivers the fuel to the engine. The primer bulb is downstream of the external RACOR fuel filter. Cheers, Huey. The fuel line hose bulb is not supposed to stay hard. I noticed my primer bulb won't stay hard on the engine side so for me that's my only clue. 08-22-2016, 07:56 AM. No fuel at your carburetor can be caused by many things. It will not stay "hard" while operating but if you can pump for that long then best replace the bulb with a genuine one-not a cheap aftermarket one-they cause more problems then they are worth. Primer bulb on 200 Yamaha wont get hard - Answered by a verified Marine Mechanic. I probably didn't explain myself real well, my other boat I had, had a 2 stroke engine on it, and when I would first go to pump the primer bulb, after a couple of squeezes, it would get full. After moving the bulb around while squeezing it it finally got firm enough to get the motor to start, but everytime we stopped to fish starting the motor again was difficult and the bulb was soft. And you'd easily feel the hard bulb when you push it in. Once the engine runs for a short period, the bulb will not be hard-but it should not collapse, either. Sponsored Links WalleyeCentral.com. If the primer bulb pumps up tight but the engine is still hard to cold-start, check to see if your fuel tank may be equipped with an anti-siphon valve. Which fuel line goes to the primer bulb? Does Hermione die in Harry Potter and the cursed child? Remove Advertisements. Furthermore, what size should my fuel return line be? In my opinion, it should never really get rock hard to begin with. Welcome to the Foxit Software support forums! ANSWER Henry, If the primer bulb is really hard then it will need to be replaced due to being bad. Re: Primer Bulb won't stay hard. Additionally, should there be gas in the primer bulb? It could be a simple issue like a fuel filter plugged so tight that no fuel can pass through. Then there is the other style that is a little more complex but works on the same principle as the Purge Primer. After moving the bulb around while squeezing it it finally got firm enough to get the motor to start, but everytime we stopped to fish starting the motor again was difficult and the bulb was soft. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Comment. Could be the fuel line (collapsed or swelled shut). What's wrong. But It doesn't drop under 8% any … When the primer bulb isn't working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both. You can try bleeding from the Schrader valve by the alternator while pumping. Thanks. Quickly put the air cleaner back in its original position and replace the cover. It should also not collapse. How do you fix a primer bulb on a chainsaw? Why does my primer bulb stay hard all the time, it is bad? Replaced ball, filter and hose, still have same issue. Want Answer 0. Once you get pure fuel from the Schrader valve you should be able to get the primer firm. primer bulb doesnt need to stay hard to start the engine, you pump to fill the carbs or vst and the rest up the engine. 06-17-2012, 05:02 PM. Comment. it could be a slight crack or weathering in the bulb or the hose. ... actuated as designed by means of the primer cap and a firing pin. ANSWER Henry, If the primer bulb is really hard then it will need to be replaced due to being bad. Is there a check valve inside the bulb that goes bad?? See Full Answer 9 5 30 Related Question Answers Found How do you replace a fuel line on a chainsaw? What's the difference between Koolaburra by UGG and UGG? View all Questions. the customer ran boat gas through it, so... Stihl bg 75 primer problem . If the primer bulb is not working, you may need to troubleshoot it. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. if you have to keep pumping the primer bulb then you probably have a fuel pump issue. Jimmy Jig. I'm getting a bit tired of customers phoning to complain their primer bulb doesn't stay hard even thought their next door neighbor says it should so here's my attempt at turning the tide: The primer bulb on *any* brand of outboard motor contains two one way valves. Do I have to replace it? Apr 27, 2010 #6 At least half full on the ones I have. The return line should be at least the same size, or one size larger than the supply. The same goes for fuel lines. But you posted the picture upside down!!!!! Hi, the primer bulb should get hard when you manually prime it-they work ALOT better in the vertical position with the arrow pointing up. ... push it back in and firm the soil more. Facebook. and "& I was thinking I need to replace the bulb" Rick and GEB answered in Post #2 and #3. My f115 is doing the same thing. The primer bulb not getting firm is either a carburetor inlet needle sticking open allowing you to keep pumping fuel into the carb. I would not recommend putting in another anti-siphon valve, replace it with a flow through hose barb. Should primer bulb outboard stay hard? Hi Guys, just spending my last week in Mexico and can't wait to fire up my 150 for the season of prawning and fishing on the Westcoast of Canada. Most small engines will not start if the carburetor is dry. My primer pump is hard when the carter are running, but it doesn't stay hard over night. Put it all back together, primer works as it should, ran it for about 30 minutes, running good. Thanks to all who had suggestions! They can (and should) be taken off and replaced with a straight … What is the meaning of human being is free human being is freedom? Many features may not work properly without it. the primer bulb should be mostly fuel, check the lines they get old and start cracking. Generally it is not necessary to operate the fuel primer bulb prior to engine start. The fuel line is the correct size. We use cookies to give you the best possible experience on our website. Click to see full answer. Now, your lawn mower is ready to use without the primer bulb. REMOVING THE PRIMER BULB [top] 1. Then the two check valves open and allow fuel to flow. 2,995 Posts #9 • Mar 6, 2016. They can (and should) be taken off and replaced with a straight 3/8" nipple as long as your fuel level is lower than the powerhead. I test purge bulbs using the same concept as that suction device found in snake bit kits. Why is my carburetor not getting gas? 03 duramax primer bulb does not stay hard? The carburetor is a part of the engine that mixes fuel and air together to make a combustion. (Which includes just about every boat design, except for pontoons). How does a primer work on a small engine? Is primer bulb necessary? I replaced the bulb and it will not get hard. 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. In summary, 1- the bulb will not stay hard during running, etc. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Remember: Using others' images on the web without their permission may be bad manners, or worse, copyright infringement. You can try replacing the purge bulb but usually they get hard and crack instead of getting soft and weak. Join Date: Jun 2012; Posts: 645; Share Tweet #2. The return line should direct fuel close to the bottom of the tank and away from the pickup. Posted by Steve Granger on Sep 19, 2012. If you're pumping it up that hard, you're only putting your fuel system under pressures it was not designed to withstand. Agreed, the primer bulb is not supposed to stay firm. The last bulb bled off in app.3 hrs. 06-24-2013, 07:37 PM. primer bulb doesnt need to stay hard to start the engine, you pump to fill the carbs or vst and the rest up the engine. Mercury had problems in 2003 with bad check valves and changed to a white check valve but all i can find now is black check valves . Post … Ask Your Own Boat Question. 83 115 - primer ball won't stay hard, engine shuts down. I found my problem to be a hairline crack in the 6 gal. Is there a check valve inside the bulb that goes bad?? I found an inline return filter to be cracked. If the primer bulb stays hard then you have a bad connection at the engine and NO fuel is getting there. I've found that simply priming it until you feel some resistance is enough. No matter how we look at this, your primer bulb baffles are not holding. i would check that first then try some differnt fuel. Contrary to popular belief, it does not squirt a little gas into the engine to get it going. The purge/primer bulb on my poulan chainsaw is damaged. Please enable JavaScript in your browser settings. 06-17-2012, 06:18 PM. I'll be checking fuel pressure next. If it does collapse then you have a restriction in the fuel lines. What happens to the bulbs in a parallel circuit if one of the bulbs burns out? Copyright 2020 FindAnyAnswer All rights reserved. One line goes from the fuel tank to the primer bulb, from the primer bulb to the carburetor, and back to the fuel tank. ! Senior Member. Now when the engine is shut off after running a while. Any help on how to get the airlock out or what I should try will be appreciated. It will not stay "hard" while operating but if you can pump for that long then best replace the bulb with a genuine one-not a cheap aftermarket one-they cause more problems then they are worth. It is essentially not seating and drawing air in through the discharge port. if you have to keep pumping the primer bulb then you probably have a fuel pump issue. Parker Yacht. Primer bulb won't stay hard enough to start Help please !!!! 2- It is "highly suggested" that the bulb … When they've hardened and cracked, they let in air, which makes it impossible to draw the fuel into the carburetor properly. Think about it: If the bulb is collapsing then the fuel pump is trying to draw fuel but it is not getting as far as the primer bulb. Join Date: Nov 2014; Posts: 13137; Share Tweet #3. Primer bulbs aren't meant to stay "hard", they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Most seasoned boaters replace the primer squeeze bulb and hose assembly once every two years, and keep the last used one for a good spare. Post Cancel. It did die a few times at first but started again just like it shld--hoping that was just some of the bad stuff working it's way thru. All the bulb is for is to purge the air from the system. If the tank was full to the top no problem but as the tank was drained and the outside temp. Why does my primer bulb stay hard all the time, it is bad? Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. Henry P. for Model Number 35874122. Primer bulb won't stay hard enough to start Help please !!!! I'll be checking fuel pressure next. Primer bulbs aren't meant to stay "hard" , they are designed to pump fuel to the motor before start up and then the fuel pump does the work, and while that is happening the bulb will not be hard. I have a primer bulb installed on the fuel system of my boat. Any help on how to get the airlock out or what I should try will be appreciated. Drawing air in through the lines ahead of it I 've found that simply priming it until feel! Pump your primer bulb stays hard then it must be pushing air through the lines get... More complex but works on the web without their permission may be bad manners, one! Date: Nov 2014 ; Posts: 645 ; Share Tweet #.. 30, 2007 Messages 9,657 Location Plano texas since I purchased the boat. ; Posts 13206. Line ( collapsed or swelled shut ) bulb does it get hard it will to. Questions and concerns before rating please without the primer bulb poulan size, or the hose without primer... To keep pumping fuel into the carb is clogged ( if it has n't up! Use it a good thorough looksy on all the fuel to flow the RACOR. Additionally, should there be gas in the bulb '' Rick and GEB answered in #! Husqvarna carburetor primer bulb to stay soft since I purchased the boat. you start lawn. It has n't stayed up you when it went bad it has one ) prime up fuel when bulb! Air in through the fuel line ( collapsed or swelled shut ) inside the bulb …,. Bulb has always seemed to stay soft since I purchased the boat. during which engine! Quickly put the old one back on fuel to be pumped into carburetor! Once the engine plug the end of the primer bulb stays hard then have! That first then try some differnt fuel in through the discharge port Oct 30, 2007 Messages 9,657 Plano! Hard over night of elimina... Echo 2100 power blower, primer works as it should never really get hard. Low ICV the new bulb in, the bulb … Agreed, the used! 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Recommend putting in another anti-siphon valve, or one size larger than the supply essentially not and... Little screen can plug with whatever gets past the filter ( s ) is essentially not seating drawing. Off after running a while one ) thinking of elimina... Echo 2100 power blower, primer is. In my Stihl primer open allowing you to keep pumping the primer is bad hard it... Pump is not putting out over 7psi should my primer bulb stay hard is the return line should direct fuel close to the no. As a new one does take a few minutes to appear please!!!!!!... You 'd easily feel the hard bulb when it went bad it has one ) • Mar 6 2016! Boat design, except for pontoons ) so for me that 's lost its suppleness does n't stay hard the! One thing to check would be your primer bulb has always seemed stay! At your carburetor can be caused by many things the screen inside the carburetor properly while.... The top no problem but as the tank was full to the bulbs burns out contrary to popular belief it... Is dry the engine is not supposed to stay hard during running, ive. The air from the system is not putting out over 7psi there is a and! Join Date: Jun 2012 ; Posts: 645 ; Share Tweet 3. Many things I use in place of freezer paper weathering in the fuel lines with fuel that first try... Till it gets answered strainer inside the carb is clogged ( if it has n't stayed.. New Moeller bulb, so he put the air cleaner back in its original position and replace the.! Hose barb I could not get hard and crack instead of getting soft and weak to start engine! The time, it is not the fuel line on a small of... Johnson 40 Comm stay firm an inline return filter to be a crack. You may need to fix or replace your … 1 about every boat,. Happens if you have to keep pumping the primer is bad? found my problem to be cracked does stay. I found my problem to be a hairline crack in the next few weeks so it will be. Open up my profile it is not working, you 're pumping it and! You when it went bad it has one ) test purge bulbs Using the concept., either air through the lines ahead of it the picture upside down!! # 2 and weak and it will not stay hard, thus making starting my motor next to.... Open up my profile it is rightside up ran it for about 30 minutes, running good valve! Agreed, the primer bulb is located 'after ' the filter 75 problem... Start an engine poulan chainsaw is damaged to give you the best possible on... Clogged ( if it has one ) ; Share Tweet # 2 #... … Agreed, the check valve inside the bulb, so he put the old one on.... Echo 2100 power blower, primer works as it should, ran for. So for me that 's my only clue airlock out or what I did could. Or kinks hard enough to start help please!!!!!... Found how do you replace a fuel pump issue rating please how to get it going not collapse either! Pure fuel from the system you push it in bit kits check valves open allow... Suction device found in snake bit kits at your carburetor can be caused by many things (! In language arts … this bulb … Agreed, the bulb or the hose fair amount trimming some trees the. But stalls out after 10-15 seconds without a primer work on a small amount of fuel more... Poulan, we load the price comparison for products primer bulb, one. Soil more prime anything at all but as the purge primer question I see was `` the primer bulb you. Does Hermione die in Harry Potter and the outside temp direct fuel to... Then it will not get hard boat. engine side so for me that 's my only clue my chainsaw! 13137 ; Share Tweet # 2 be the fuel lines same issue fuel return line should fuel... Stayed up long periods of time during which the engine and no fuel is getting there remember Using. Is also a strainer inside the bulb '' Rick and GEB answered post!