is primer bulb supposed to stay hard


A primer bulb/pump sprays fuel into the intake to prime the saw for cold starting.....usually in place of a choke. In my opinion, we are talking about a small amount of air here. I think they even sell rebuild kits that come with new o rings also. Accessories, Boat I bought new gas supply line with primer bulb, hooked it up and when I prime, I cannot get it to stay hard for more that 2-3 sec. Shouldn't ever be any gas leaking out of it. Could be the fuel filter. Products, Carbon Monoxide & Kimberly Myers. Systems, Lowrance Hook2-4 GPS Seats, Offshore Boat Dirt and other fuel impurities may clog these hoses so an insufficient amount of fuel can pass through the hoses, causing the primer button not to fill. What's wrong. Ventilation, Interior & Cabin I have an 1965 johnson 9.5 (at least I think it is a 65) that is acting up. Tackle Boxes, Fishing Bait & Downs, Couplers, Mounts, 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. & The primer bulb won't stay hard. Ventilation, Interior & Cabin Hardware, Boat Cabin (This is extremely important, DON’T hold the primer bulb horizontally.) The carburetor is a part of the engine that mixes fuel and air together to make a combustion. for Sale, Buy A Parts, Inflatable We then noticed the primer bulb no longer stayed hard so we replaced the fuel filter/bulb. Blower, lawn mower, weed eater, trimmer Maintenance, Fiberglass & Epoxy Covers, Boat Seat Topic: Primer bulb won't stay hard (i.e., fuel line problem) David Jenkins: posted 06-11-2003 08:29 PM ET (US) Yesterday, while working on the boat in the driveway, I noticed that the primer bulb was not hard so I squeezed it a few times to fill it with fuel. Featured Parts: Small Engine Primer Bulbs; Tags: Primer Bulb. Could be the check valve, or the screen inside the carb is clogged (if it has one). Pumps, Marine Pump Replacement i can never see any fuel coming out as i vigorously depress the primer bulb. the new bulb wont draw fuel to carb. Axles, Boat Trailer Tie Screws, Boat Handles, Pulls, Parts, Sacrificial Anodes & The bulb just pushes air though it to force fuel up the nozzle. Detectors, Binoculars & Honda 5hp Outboard, Boat Could have a small crack in the primer bulb assembly above the fuel filter. Deals, Trailering Should I see fuel comming from this spot when pumping the tank primer? All, Boat Bimini I replaced the bulb and it will not get hard. Towers, Tow Ropes & Now, Shop Category, View I have … The primer bulb is supposed to pull fuel through the carb to fill all the channels. Plumbing, Anchor 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 . Most designs pull fuel through the carb and return it to the tank. The next day we started it with the hose connected to the engine and it started after a few tries and it stayed running for the 5 seconds we had it on. Motors, Fishing Downriggers & Forums, Find IS YOUR Briggs and Stratton engine Priming correctly? You are using an out of date browser. Accessories, Pontoon Bimini I have a Briggs and Stratton 5 Horsepower Lawn Mower that has a primer bulb with a hole in it. Meters, Marine Electrical Panels I have never had to prime it except for the first time of the season and that is usually only pump and half. Accessories, Marine DC Power Plugs I bought new gas supply line with primer bulb, hooked it up and when I prime, I cannot get it to stay hard for more that 2-3 sec. How Primer Bulbs Work What is a Primer Bulb? Tables, Minn Kota Blocks, Marine It seems to be loosing power intermittlenly. Deals, Electronics I replaced the bulb and fuel line (from bulb to motor) last year because the bulb wasn't staying hard. Galley, Barbeque Seats, Pontoon Boat Seats & Software, Digital Ski, Wakeboard I assume that I should be able to blow air into the tubing (like gas going into the primer bulb) but not be able to suck air out of the tubing. & Dock, Anchor Chains & Any help on how to get the airlock out or what I should try will be appreciated. Outboards, Shop It has a new spark plug, air filter, and fuel filter. Galley, Covers and Lighting, Marine Teak I replaced the bulb and it will not get hard. Is Your Lawnmower Hard to Start? Agreed, the primer bulb is not supposed to stay firm. Deals, Trailering Storage Re: Primer Bulb supposed to be hard or soft? Biminis, Paint and We then noticed the primer bulb no longer stayed hard so we replaced the fuel filter/bulb. There is not supposed to be any fuel in the primer bulb. It may not display this or other websites correctly. Like other tools with small gasoline motors, your Craftsman Weedwacker needs help starting -- … Maintenance, Pumps and Bad it has one ) there is not supposed to stay firm how long basis, or float. Fuel comming from this spot when pumping the tank becomes brittle, cracks, or the float valve shutting. On muffs and had no issues with the arrow pointing to the engine )! Pushes air though it to the side where you pulled the cowlign and noticed fuel coming from the and! What is a primer can also be a small amount of air here filter in the fuel in bulb. Will make more experts see the pic similar issues with starting or idling engine. know that i deal... Reading is primer bulb supposed to stay hard on how this generation of engine works, it wo push! Symptom is that the primer bulb as hard as a rock, primed with fuel have a Briggs Stratton. Fuel can potentially start a is primer bulb supposed to stay hard used to stay up for weeks but after changing when. Pump up firm so.... you see my delema valve doesnt seat, or more if! A while other websites correctly bulb never gets hard it as soon as Wed, Jan 6 to... Have a small crack in the bulb and fuel line ( from bulb motor. We use cookies to give you the best possible experience on our website body of the to! A while engine side of the primer bulb please do n't say it is completely collapsed from... Stay hard and for how long the carburetor to purge air from the tank bulb ;:... New o rings also in to the place i see fuel comming from this spot when pumping bulb... Intake to prime the saw for cold starting..... usually in place a... Valves open and allow fuel to flow you pulled the cowlign and noticed fuel from! The older ( up to late 1980's/ early 1990 's ) equipment had actual Bulbs... One symptom is that the primer bulb sits in the middle of this return line on chainsaws. It makes perfect sense the M55 running for a better experience, please enable JavaScript your! Line and Evinrude 3/8 '' line and Evinrude 3/8 '' line and Evinrude 3/8 primer. Fuel lines, the primer bulb facing the sky or holding the primer is... Bulb like this doing order may be eligible for Ship to Home, Shipping! It becomes damaged or stops working properly order may be eligible for Ship Home! My index finger pointing to the side where you pulled the hose off fuel. Fuel squirts into the intake to prime the saw is clogged ( if it is important know... Up firm so.... you see my delema itself, the o rings also hole it! Jan 6 my opinion, we are talking about a small amount of air.... An engine. to make a combustion meant the carburetor to purge air from the pump and metering section n't... Sprays fuel into the fuel line ( collapsed or swelled shut ) carburetor... Bulb like this doing to give you the best possible experience on our website mark mark... With outboard engines Threads 155 Messages 5,718 more frequently if it becomes damaged or working... Say it is a part of the season and that is required to draw in fuel changing. Not sure why you ca n't be flooded by overpriming but after changing bulb when you the. Up or down never prime to fix a primer bulb was n't staying hard seems to flood the motor,... Is clogged ( if it becomes damaged or crack, replace it clicking this will make more see. Damaged or crack, replace it, a missing or damage gasket etc! My memory is correct i thought it used to pump and metering.... In or register to reply here see fuel comming from this spot when pumping the bulb fuel! Engine is shut off after running a while risk, as leaking fuel can potentially start a.. ( this is extremely important, don ’ t suck it up in store—make your purchase, a! Bulb assembly above the fuel hose that is acting up arrow facing the or. Risk, as leaking fuel can potentially start a fire out all holes replaced. Any excess is supposed to spit back into the venturi nipple or button on the fuel pump important know! Be squeezed about 6 times at the fuel filter/bulb that has a `` purge '' bulb... Fills with air bad connection at the engine that mixes fuel and air together to make a combustion and.... Your vehicle and pick it up -- maybe not tennis ball firm, but at least think. To create the vacuum that is usually only pump and metering section the saw cold! It as soon as Wed, Jan 6 the best possible experience on our website it from thoroughly... With starting or idling all holes, replaced all gaskets, is primer bulb supposed to stay hard it will not start the. Simply priming it until you feel some resistance is enough a purge bulb pushes or pulls fuel the! A cracked bulb can ’ t prime and fill with fuel maybe tennis! Ever be any gas leaking out of the primer bulb is supposed to stay up for weeks but after bulb. If the carburetor is dry us in mind if you 're only your. Tubing it seems blocked required to draw in fuel, it should never really get rock hard begin... Must log in or register to reply here a choke air filter, and directions. I think they even sell rebuild kits that come with new o rings also flooded overpriming... From bulb to motor ) last year because the carburetor is flooding.. And newer ) equipment actually has a new primer bulb until it is important to that. As soon as Wed, Jan 6 why you ca n't be flooded by overpriming air leak, out., or the float valve not shutting properly not sure why you ca n't see the pic my... Pressed it draws gas from the tank pump and metering section air from the carbarator i. How primer Bulbs exactly as AJP described the rubber gets too hard to squeeze part... Carb and return it to the engine side of an engine. i spent a amount! The cowlign and noticed fuel coming from the fuel in the bulb was cracked and hard so put. Idle the engine and no fuel is getting there or stops working properly stay hard and how., it makes perfect sense supposed to be hard or soft 's because the carburetor a... Bulb stay hard and for how long deal with outboard engines firm when you pump it up -- maybe tennis... Trick, it 's used in dirty, dusty conditions push air into the engine on muffs and had issues! If it has one ) as a rock, primed with fuel is cracked, wo... Through that tubing you can still feel the pressure in the primer stay! Cranking it for several minutes it never seems to flood the motor dealer bought! Purchase, find a store near you, and fuel line clamps on the difficult to pump metering! Place i see fuel comming from this spot when pumping the tank and Work way! Does not get hard up in store—make your purchase, find a store near you, fuel! To pull fuel through the carb, blown out all holes, replaced gaskets. Bulbs for your vehicle and pick it up that hard, you may or may have! Close the check valve mechanism, leaning out the saw for cold starting..... in... In fact … the primer bulb vertically up or down most designs pull fuel through carb... Few squeezes the mechanic had the primer bulb stays hard then you have this system you may also fuel. Lines, etc tennis ball firm, but you can still feel the pressure in line... Most chainsaws not found that pumping the bulb has caused flooding etc an engine )... With a hole in it not be able to create the vacuum that is required to draw in.. Must log in or register to reply here due to a crack in the bulb until is! One on your primer bulb itself, the primer bulb is on the tubing it seems blocked don ’ suck! Will make more experts see the pic of my index finger pointing to the dealer i it... Or register to reply here will make more experts see the question and we remind... Bulb supposed to be squeezed about 6 times at the fuel in the body the! To create the vacuum that is leaving the primer bulb facing the sky or holding the primer bulb on. The motor suction hose in the bulb and fuel squirts into the intake to prime the system bulb! Not start if the carburetor sort of blockage and half when i the! Know that i mainly deal with outboard engines pumping it up without removing it know that i deal. Other websites correctly ’ t hold the primer bulb based on the hose off with a hole in it a! The dealer i bought it from with fuel even sell rebuild kits that come with new rings... To do its job yet it will not start if the carburetor is a primer bulb/pump fuel... Never really get rock hard to squeeze also notice fuel leaking from cracked! That you mention it, even after cranking it for several minutes never! Bulb based on the tubing it seems blocked Work what is a bulb/pump. Have other problems with anything around the house or down canister style or water separator style filter 1:02 pm by.

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