That was, by far, the best illustration and description of how the fuel line primer bulb functions. I am a university professor in the US, and you are a masterful teacher. Well done, you!!

I broke down in the Intracoastal Waterway this morning due to a faulty primer bulb. It wasn't until I returned home and autopsied it, that I discovered the bulb had some type of plastic liner, presumably to protect it from ethanol fuel. That liner had degraded and blocked the valve going to the engine and was starving it - it was three years old. I removed the liner and it works perfectly. I could kick myself because I left my spare at home. I had to get towed in and it wasn't cheap. I will always have a spare this day forward. Thanks for the video, Stu!

@DangarMarine

Жыл бұрын

Ah, the spare you need is always the one that is at home.

@tommymorrison422

9 ай бұрын

@@DangarMarineyup unfortunately same thing happened too me yesterday but I had a small tank with hose just incase but when I got it started I didn’t feel like taking everything apart in 5 6 foot seas but yes made it home 10 mph if I gave it gas it would stall so I just left it low speed made it back thank god no tow but yes now I know how a primer ball works thanks again bro 😎

I installed a new bulb today and couldn't get it to pump at all. Before I went to buy another one, I watched this video and poof, the vertical pumping trick worked like a charm! Thanks for saving me $20 and frustration time!

More time saved by watching another Dangar video. Thanks Much!!!!

Stu , this is another brilliant video. I love knowing how every element of the boat and motor work. You are a fantastic teacher and not a bad artist!

@DangarMarine

3 жыл бұрын

Many thanks!

I just want to say thank you. I needed more fuel than I had on hand to keep my generator running from Hurricane Ida. I was fighting to get fuel out the bulb and couldn’t get a hose into the tank. Something so simple as holding the bulb straight up allowed me to get 10 gallons out which will keep my fridge and fan running for another 2-3 days. Thank you again.

Once again great info when I'm looking on KZread I can never really find what I'm looking for then I watch your's and you always have just the info that I need and am looking for. You da Man...

Desperate and now 12noon 24th Dec. when all marine repair shops are closed for the festive season its just lucky to come across this video to offer a solution to why I could not start my Honda 45 outboard being that fuel not getting into carburetor. Your video info is very timely. I have got now a new bulb primer and will rep;lace that 10yr old rubber primer very soon. Crossing my finger this would solve the problem. Thanks a lot and merry Christmas to you !

@DangarMarine

7 жыл бұрын

I hope the new primer bulb solves your problem Jack, if not, check all the fuel lines for obstructions as well as the valves in the fuel pump. Good luck and have a great Christmas!

That just eliminated the next 4,000 steps I was going to try to get the lines primed. Now I can move on to find out why the Bugger won't start. Thanks Mate!

@DangarMarine

6 жыл бұрын

Good luck mate, hope you figure it out!

Great description on how a primer bulb works, and you didn't mess up once, well done. kirk from Annapolis, MD. on the Chesapeake Bay.

@DangarMarine

7 жыл бұрын

Thanks Kirk. Not messing up all comes down to the editing. ;)

Hey, Stu. Not sure if you'll see this... but I love watching your videos. Out of many small-engine/outboard channels on youtube, you give the "how" and "why" things work the way they do. I have resurrected a mercury 25... which I would not have done without the help of your channel! Keep the great content coming... It never gets old!

thank you for cutting the bulb and the valves for us.. appreciate it..

Thanks Stu, you saved my sanity again! The bulb was intermittently priming and I couldn't figure it out. As you said old bulb, weak springs, as soon as it held it arrow up, bingo....primed in seconds.....thanks.

@DangarMarine

4 жыл бұрын

Glad it helped

Great video . Most people don't know this.. Having it vertical rather than horizontal helps expel air from the bulb also (air pocket floats to top of bulb and expelled instantly)

As always very helpful keep up the great vids Stu

@DangarMarine

7 жыл бұрын

Thanks Mitch.

Hi Dangar thanks for explaining the priming bulb. very helpful mate. I had an issue this morning with a brand new outboard and fuel hose .the hose was already connected to the tank with arrow pointing in correct direction,so the other end could only go to outboard. 1st time use since picking it up from dealer. spent an hour trying to start it. I went home gutted after being at boat ramp at 5.am on maiden voyage. The problem was the arrow indicating the flow direction was wrong. I removed the primer and tried the test you showed on your video with stubby. The bulb worked only when arrow was facing into the stubby not going out of it. Grrr. Definitely a fail in assembley line. keep the videos coming cheers🍺

Well I never thought to hold the primer in a vertical position but it makes sense! I have a good running outboard but primer bulb issues after replacing it. Will give it a shot!

@frankadams5291

2 жыл бұрын

Keep primer bulb about 13 inches away from the gas tank get primer bulb that goes with your engine I had no problem after

Excellent explanation! Love your videos man, keep it up, learn new things every time I see one! About to address fuel line issues on a 60ELPTEFI. Rotten gray lines. Getting upgraded lines, and filters, carbs cleaned, lower serviced with an impeller kit. Bit late getting in the water this year, too busy at work!

@DangarMarine

3 жыл бұрын

Glad you liked the vid. Upgrading your fuel lines is definitely a worthwhile thing to do.

Great tip. I did not know about the ball and spring inside of the primer bulb. Thanks

@DangarMarine

4 жыл бұрын

You're welcome. :)

Looked on the webs everyone says replace this troubleshoot that!!Stu says turn the thing up now my brand new one i thought about replacing works fine!!!Thanks Stu!!

@DangarMarine

3 жыл бұрын

You're welcome. :)

Excellent video, Stu... thanks again!

@DangarMarine

7 жыл бұрын

Thanks Ray.

Duuuuude, you have no idea how this helped me figure out my issue...Thanks much

@DangarMarine

4 жыл бұрын

Glad I could help!

I swore there was something else wrong with my bulb, but after holding it vertical as you state in the video, it started working right away!

Good stuff as always!

@DangarMarine

7 жыл бұрын

Thanks David!

Love your work mate.

@DangarMarine

7 жыл бұрын

Thanks Fabian!

Perfect explanation Stu. Thanks

Great video Stu. 👍

@DangarMarine

7 жыл бұрын

Thanks mate. :)

Another awesome video, Thank You

Great video Stu!!

@DangarMarine

7 жыл бұрын

Thanks Will. :)

Thanks heaps! I mean it. It is becoming a hardwired reflex when the Tohatsu starts behaving ... Gotta go check Dangar!

A new upload, right on!

@DangarMarine

7 жыл бұрын

:)

Thanks for the video - Great tip!

@DangarMarine

5 жыл бұрын

Hope it helps you! :)

Excellent explanation

Answered all my questions, had been trying to prime with arrow pointing down.Seems logical once you have watched video. Simple thing but has caused me a lot of starting problems. Off to the boat to try.

@DangarMarine

6 жыл бұрын

Hope you get your starting problems sorted. :)

i had a general idea, but this visual example.. Great work as always!

@DangarMarine

7 жыл бұрын

Thanks mate, it's always great to see things apart I find.

@gyorgyimre7774

7 жыл бұрын

a question (if i might ..) I have an 1997 Mercury 8hp (US cross-flow) in a very good condition pictub.club/image/ssVWB2 pictub.club/image/ssVoMm pictub.club/image/ssVpc7 it was recently imported from Japan as an used engine... It has very low hours on it i guess 1 thing is bugging me. If i try to see the crankshaft "side-play" on the flywheel, i can feel a tiny bit of side movement in certain positions IF the engine is cold, and had not runned a while.. But! after the start, and a few rev this sideplay is dissapering, and feel firm meaning no side-play on the flywheel when it's "hot, or runned a bit" this engine has 2 roller needle bearing, and 1 ball beraing on the crankshaft pictub.club/image/ssksoU (this picture is just an illustration;) IS it possible that this type of bearing assembly have some "heat expand" feature? i mean it's idles great, and run great with no hearable distortion at all. (i have some experience with outboards in general so i can spot is something wrong by ear wise;) really don't want to tear a part just because of it... just it's strange, and the lower unit prop shaft bushing is rock solid no play, even i can feel that the oil seals are "tight" around the shaft meaning not worned out by excessive use

Thanks mate, I moved my portable tank to the front of my tinny and made a new fuel line myself. Could not get it primed then I watched this video and pointed the primer bulb arrow upwards and guess what,she primed. Love your work Thanks again Brett

Fantastic video....as a boat owner of 20 years I just squeezed the bulb to death till it felt hard to prime my motors...now I know how it actually works.....cheers for the tips..

@DangarMarine

7 жыл бұрын

Thanks David, glad you learned something from it. :)

@tommymorrison422

9 ай бұрын

Amen brother I never knew why it wouldn’t get hard on my 225 evinruide I was dead in the water finally got it started but could only do about 10 mph in but made it safe always love learning from you because you break everything down for us best video on primer ball hands down stay blessed brother 🙏💪💪

Truth! I thought the primer bulbs were NFG but the vertical tip solved everything.

Great video as usual 👌

Neat !! Thanks for posting

Nice as always. You seem to always release a new video the same exact time im doing (or trying lol) to my motor!! Last time it was the merc fuel pump the same day i got the parts in. And TODAY I got my new Merc primer bulb in from ups! I was just researching the whole vertical bulb install all day today, Lol. The previous boat owner had an Attwood bulb that was really old and from the forums plenty of people say to always get an OEM bulb because the valves apparently aren't as good aftermarket. I just opened the new merc bulb and it sure as hell feels and looks of way better quality. The previous owner obviously lied to me about not using Ethanol because the attwood grey fuel line was FILLED with those yellow chunky ethanol remains and the inside(clear) liner was eating sh#!. Im gonna do like you told me before and get some new A1 line from an auto store to replace. Now that i got the bulb in i can knock it out now! Thanks again and can you please post the link again for the Dangar shirts? The shirts do get shipped to the US right?

@DangarMarine

7 жыл бұрын

If I keep releasing videos just as you need them I'll make sure I don't do any more of raising sunk boats then! ;) OEM bulbs do generally appear to be of a higher quality but I have also bought some Scepter ones that seemed quite good. You can get shirts from dangarmarine.com.au/collections/merchandise/products/dangar-marine-t-shirt and they are printed in the US so you should get them faster than we do!

@jimbogasoline2042

7 жыл бұрын

LOL!! Im ordering today..I don't have a facebook account to send picture with the shirt. I can post it on youtube i think(im pretty bad at newer technology) But ima post my pic with the Dangar shirt with my boat when i get it in. Again thanks for everything you...I hope you realize how much you help people out and are the best at explaining and covering all concers n questions!!! If there is a boating world trophy you deserve it!

Great video (as always).

@DangarMarine

2 жыл бұрын

Glad you enjoyed it

Thank you sir for the explanation, thank you so much.

@DangarMarine

Жыл бұрын

You're welcome!

thank you sir for this !!

Awesome! Thanks for sharing.

Couldn't get a solid bulb. Tried this and it worked right away. Thanks mate!

@DangarMarine

6 жыл бұрын

You're welcome. :)

Thanks for this informative video. I bought a brand new boat in 2013 with a 100l underfloor tank and a Yamaha 115 2 stroke saltwater series outboard. Ever since new, the boat has never held its prime. If the motor is stopped for more than a minute or two, it will cut out when restarted after the carbies run dry. If I prime before starting its fine, just a pain to have prime every start. I initially suspected the primer bulb so changed it myself but made no difference. The dealer then changed the bulb again at the first service after I reported the problem but still no difference. I have checked everywhere I know for air leaks etc. and all looks good. I ended up fitting a fuel line non return valve at the tank take off and this mainly works, although often gets foreign matter under the seat so needs a lot of cleaning. After seeing your video, it seems to me the primer bulb should have good enough non return valves to prevent my problem. Given that I’m on my third primer bulb (bulb located after filter/separator) and the problem is still there, my question is do you have any thoughts on a solution to the problem? Is the quality of the NRVs better is some bulbs than others? Any help appreciated. Regards Daryl

@DangarMarine

7 жыл бұрын

It's odd that it has always had this problem so bad. You could consider making a bracket so that the bulb sits against the transom in the vertical position, that will no doubt help. If you are getting foreign matter in the non-return valve you installed, you are no doubt getting it in the primer bulb valve too. Perhaps also installing an inline filter before the bulb would help?

@darylharris1204

7 жыл бұрын

Thanks for your reply stu. The primer bulb is upstream of the filter/separator so shouldn't be getting any foreign matter in it. I agree it's a weird problem as I have had boats for years and never seen this problem... I am going to buy a Yamaha OEM primer bulb (hoping for better quality), mount it vertically and see how it goes. I do general servicing myself but if I need any repairs or major work, I will be certainly seeking out your services. Thanks for your great videos.

NICE VIDEO! A lot of people don't use these primer bulbs correctly. They must be in a vertical position with arrow facing up. Horizontal position ( INCORRECT)

@kenw.1112

5 жыл бұрын

Shucks you wasted good beer!

That's a hell of a way to pour a beer lol🍺

Quality video really well explained

You have enough knowledge to be dangarous...for boat gremlins, that is. (sorry, couldn't resist) Thanks.

Well I did not know that , thanks for info !

@DangarMarine

7 жыл бұрын

Welcome. :)

Another one of many great videos! Thank you! I have a quick question, the bulb is not supposed to remain hard while the engine is running, is it? I'm thinking it is normal for the primer bulb to loose the firmness once the engine is running and fuel is flowing. Is this correct? Thanks again for the GREAT videos!

I disagree that it is mostly gravity that is the issue with the pump action. I believe a contributing factor could be air inside the bulb not evacuating if the bulb is held horizontal. If bulb was horizontal, mostly filled with air, the pump action would compress the air volume and vacuum the air volume and the action would not be efficient. Also, the the dry valves will not seal well until fuel gets to them. Either case two factors help..... Hold pointing up and as low as you can get it (lower than tank if can).

Appreciate that. I’ll change it that way you said

Brilliant thank you !

Great explanation! I have a 1978 15 hp johnson. I had an old fuel line and bulb that when you squeezed it, it wouldn't reinflate (would take 1 min to reinflate). I bought a new line and bulb...same thing happens, won't inflate. Any idea of what could be going on? It also will only run with the choke all the way out, so i will be cleaning the carb and replacing the carb seals. Thanks again for the video!

Well done..

thank you so much. so today I took the boat for labor day For the life of me I couldn't get the bulb to tighten up. tried for over 15 minutes. finally I gave up, loaded the boat back up and went home. once at home, I figured I might as well figure it out. I squeezed the bulb and within 3 pumps, solid as a brick. hmm. WTH, here's the thing I realized after your video, at home I was standing OUTSIDE of the boat and I (without realizing) pumped it vertically, at least that's what I'm guessing. so thank you so much

Thanks Stu, another very informative video, I have a couple questions. I need to change my line and bulb... I don't know if it is a 3/8" or 5/16" setup? and don't want to dismantle until I have the new line and bulb. line feeds a 25HP Mariner, so my guess is 5/16" line. Is there any way to know without dismantling? no ID numbers on line. Boat is still being used. and if you can recommend a good brand that would be appreciated too. I understand that some of the lines sold today do not fulfill fuel usage standards.

U saved me $$$ Thanks mate

I know this is a very old video and I'm late with the comment. Another GREAT video!

quick question my fuel tanks are up the bow of my tinny would that extra run of fuel line make it take a while to get up to revs? (on plane) i have installed new plugs and cleaned fuel filter and run new fuel through it and it still not right (thinking maybe carbs need a tune) but yer thort id ask about the long fuel lines? also good vid :)

@DangarMarine

7 жыл бұрын

Hi mate, no having the tanks up in the bow isn't a problem. Many people do for good weight distribution. I'd be looking at a carb clean to start with.

@djhinormas959

7 жыл бұрын

cheers mate now to watch ur carb cleaning vid lol

Great vid. Fuel issue. New pump and carb rebuild done. Motor stays running only when primer is pumped. The two hoses attached to the bulb. Should the shorter one be closer to the engine making the bulb closer. ? The shorter hose is at the tank making the bulb farther away from engine. Would this matter ?

@DangarMarine

5 жыл бұрын

It shouldn't matter that much, still sounds like something is wrong with the fuel pump or hoses.

Great explanation. My setup is with the primer bulb in vertical but after two or three years, not exposed to sunlight the Yamaha bulb is still like new/soft but the bottom check valve goes bad. I was thinking of adding separate in-line check valves. Any thoughts?

@DangarMarine

4 жыл бұрын

You could, but given how cheap primer bulbs are it is probably easier just to swap it for a new one.

Hey mate, have you ever done a video on removing that metal collar and plastic spacer above the water pump? Man Having that piece on there is a real pain.how do you get it off and what's the easiest way to get it off. Thanks and love your channel. I've watched almost all of them and your great at explaining things.

@DangarMarine

7 жыл бұрын

Hey Chris, are you talking about the drive shaft bushing up in the leg or something that is attached to the water pump?

Thanks! Question: I am replacing a broken primer bulb on a 70 hp Force outboard. The fuel line on the fuel tank side is black, like rubber. The line on the engine side is yellow, like nylon. Most of the assemblies I find for sale are black on both sides of the bulb. Can I use these? Or should I be making sure to use yellow nylon fuel line on the engine side like it has now?

Could this be an issue at higher rpms and not giving the outboard enough fuel? My outboard runs great at low rpms and at idle but once I get to 3000 rpms it bogs down.

@JiggyC

2 жыл бұрын

You ever fix this? Having this same issue

Great video's as always. Thank you! BTW Have you done a video on what to do if you haven't started an outboard in a year (old fuel). I have a motor (near brand new) sitting in my garage, use a couple of times, been too busy to use it. Can please point me to the link if you've done a video similar. Thanks again Stu.

@DangarMarine

7 жыл бұрын

Thanks Troy. This video will give you some ideas of what to look for kzread.info/dash/bejne/ip2Z2amgZ7vef5s.html&lc=z131cfriqk2iwnjpf04cfbhxiwunw3tadzw0k

@allthingsaustralia4861

7 жыл бұрын

That's what I needed - Thanks Stu. Loving the video's, very much appreciated.

Nice video

@DangarMarine

7 жыл бұрын

Thanks Dean.:)

One of the easiest way to check if the spring is faulty, leave the car parking overnight with fuel cap open or close fuel cap without rubber o ring. If the car starts right away in the morning, which means the spring is allowing the fuel travel back to the tank over nights. This applies to the long crank issue in the morning

@roonbooks3227

10 ай бұрын

"Car"???

I've shown this trick to lots of outboard owners. Hold it vertical and it SUCKS better!

I know this video is an oldie, but i found it very interesting! I have a lot of trouble getting, and keeping my ball hard!😯😜 LOL I have a 4 year old Yamaha F40LEHA 4 stroke and I can squeeze that thing all i want and it stays relatively soft. Everything is like new and I only have about 37 hours on the motor. I will give it it a go in the vertical up position and see what happens. Should it remain firm during operation?

Thank you

Holding it straight up also means the top valve is held closed by the weight of some fuel in the line *and* if it does leak a bit you get fuel back into the bulb, not air.

Hi Stu. Why does a primer bulb need to be squeezed at all? I see that initially (like when new water separator is installed ) you need to force fuel up into lines to prime up the low pressure fuel pump, but why after the engine sits a few days the bulb needs to be squeezed again? My bulb does "deflate" and I go ahead and prime before starting, but my motor is fuel injected so I would think the fuel line a closed system? thx Stu for all the instruction

@DangarMarine

6 жыл бұрын

I only ever squeeze my primer bulb after having run out of fuel. Other than that I just turn the key. Mine is carburetted so the fuel bowls stay full even with the motor tilted up. In your case the VST should stay full of fuel and not require priming.

@rumblereadyservices7063

6 жыл бұрын

thx for the reply Stu!! i agree with your comments as well

Great video. If the pump and hose is empty, then where does the air go? To the engine or to the fuel tank? I guess it goes also in the arrow direction, but don't you release that air somewhere

@DangarMarine

3 жыл бұрын

Air will just come out through the carburettor.

@boatsandoutboards9070

3 жыл бұрын

@@DangarMarine thank you

You just solved my problem again! But NOT THE BEER!!

Where could I get a shirt

hi do you know when you are going to keep going with the evinrude rebuild thanks

@DangarMarine

7 жыл бұрын

Hopefully within a week or two.

Thanks.

I just thought of an awesome party trick lol

@DangarMarine

7 жыл бұрын

Do tell!

Would a faulty bulb cause issues during wide open throttle or heavy acceleration? I’ve always had issues keeping the bulb solid when priming. But it starts and runs first pull it’s just once I get above about half throttle or accelerate hard up to it, it seems to starve itself and die. I can keep it running if I am constantly pumping it.

@DangarMarine

4 жыл бұрын

Sounds more like a faulty fuel pump or spit in the fuel line sucking air in.

Hi mate what happens when I speed up the line comes off the motor.

Great video but what if you can not get the bulb to fill to the point where you can't pump any more ? Does this mean I have air leak any suggestions?

@DangarMarine

7 жыл бұрын

Generally it either means an air leak, or an air lock, or the valve in the bulb isn't working as it should.

Does it matter if the bulb is closer to the outboard than the fuel tank?

Question??? Does the Primer Bulb go in between the Fuel tank to water separator or Water separator tor to fuel pump if that makes sense.... or does it even matter the direction?

On my 4 stroke df140 if I’m switched off for over half hour or so I need to prime the bulb to start otherwise it just cranks without starting. Is this because my bulb sits horizontally allowing fuel to flow back to the tank?

@DangarMarine

4 жыл бұрын

It's a big weird at the carburettor bowl should stay full still. A new bulb is a good cheap place to start.

I'm changing fuel line find of a custom fit and length for my boat . Thing is before i cut the new hose i need to find out the best place to put the bulb. Any suggestions or don't it matter ? And thanks for the great video .

@DangarMarine

7 жыл бұрын

It doesn't matter hugely where they go. I think the most important thing is to have easy access to it. I also prefer to have it after a filter so that gunk won't get into the ball valve and stop it working properly. I think those are the two most important things.

@stevenhardy8263

7 жыл бұрын

Thanks that's just what i needed to hear.

Will you cut open the new epa rated bulbs from Attwood and other cheap bulbs are selling . They have a thin plastic liner that is suppose to keep the ethanol from eating the rubber . Whats been happening is the liners are breaking lose and blocking the flow of the gas . You can pump it and it forces gas out but once you start going down the lake the liner starts to block the flow of gas making you think you have a carb problem when its because of the bulb liner . I bought a mercury one after I started reading about it and the problem stopped and it runs great now . It was the stupid brand new cheap attwood bulb .This just started in 2018 when they changed something with the epa .

I just spent all day fishing by the boat launch with a new motor I just picked up but used the hose and primer bulb from a one year old motor, the primer bulb just stayed soft no matter how many times I squeezed it and the motor wouldn't start, I had no idea the angle of the bulb mattered at all, ill try that tomorrow and see what happens, thanks

@DangarMarine

Жыл бұрын

If it still doesn't prime it could be a bad needle and seat in the carburettors.

@chadbosko8935

Жыл бұрын

@@DangarMarine it's a brand new motor and when I got home I used the new hose assembly and bulb and it started first pull, can't believe Honda would use such a cheap primer bulb that lasts just under a year used a few times.

Also forgot to mention would it be ok putting a water separater on a fuel hose... my out boards don't have the space for them in the cowlings... thinking just after the primer... something clear with a screw to drain water out like a 250ml bottle

@DangarMarine

7 жыл бұрын

Yep, that's fine. I've got a video on installing a water separating fuel filter in line.

With your older boat motor primer bulb can be used as an anti siphon valve if arrow points up . Avoid the cheap aftermarket bulbs kids I've seen a few rebuilds because of defective products starve an old two Stoke and you are smoking pistons . Always nice to have a small spare tank and hose . If you lose power get off the throttle and change to the spare tank and hose . In other words . Be safe kids !

Is it better to put the primer bulb closer to the engine or can it be at the front of the boat by the driver-tank is under the bow.

I have a 175 evinrude fitch injection I took it to repair it 3 times and still the same problem,they told me it was the computer they repair it and nothing.i didn’t make it out of the no wake zone, and I was trying to start it and I did but the only way it will start is if I keep squeezing the bolb and if I stop the motor stops.any ideas ?

I have a 1 month old one of these lines for 6hp Johnson. Basically it’s completely filled with gas but none will go to my engine. I’ve depressed each end to try and open them up but nothing. Is the bulb messed up?

When installing a new inline water separator filter, and it is behind the primer bulb do the primer bulbs prime the filter , do the primers go hard when primed or is it normal for one the feel the same when priming vs primed?

You just reminded me of another dumb thing I did. Squeezed the bulb with the arrow pointing down and no fuel got primed. I thought there was something drastically wrong until I checked google and found out there was an arrow on the bulb. I did it for years and never knew that. Just lucky I guess.

@DangarMarine

7 жыл бұрын

Theoretically the arrow is really just to tell you the direction of flow so you don't install them backwards. A good quality bulb should work in any orientation so don't feel too bad about it. :)

@pitsmcgoo

7 жыл бұрын

Mine only works vertical with the arrow pointed up maybe it's defective.

@victorgarza5292

5 жыл бұрын

I constantly have to prime the bulb. I believe I may be getting sir in the fuel line. The bulb is almost always soft. The RPM fluctuates up and down so I have to prime the bulb so it can run smoothly. What could my problem be?

Our boat will stay primed when you prime it and then it will cut off after running for a while no matter slow or fast of course it will cut off faster when at a higher speed we go pump them bubble its fine will crank and run then this happenea again I noticed while riding on the back holding the bubble that it feel like air bubbles in the prime bubble and the gas line closest to the engine was vibrating will a faulty valve do this everyone keeps saying air is coming in from somewhere we juat replaced the bubble it ran fine for a while and now it is cutting off im debating on going to buy another thanks

Can the orientation make any difference in fuel delivery performance when the engine is running?

@DangarMarine

7 жыл бұрын

It might flow a little better pointing downwards I guess, but so long as the fuel pump is keeping up with the demand you won't notice any difference in performance.