Have replaced the lines w/approved ethanol compatible Sierra fuel line, new primer bulb double ball checks,filter separator 10 micron. Fasteners, Boat Windshield Plumbing, Anchor Marine Battery Chargers, Shop I checked the fuel primer bulb and it was fairly hard. Manufacturer, Boat Tables & Seats, Fishing Boat Ventilation, Interior & Cabin It would not get very hard, and it really never made me feel like I was getting a firm, primed fuel line. All, Anchor & Maintenance, Pumps and Galley, Covers and A stuck or plugged check valve in the carburetor can cause the bulb to remain down or be slow to return. Blocks, Marine Combos, Fishing Tools & Old gas can harden them essentially sticking the "valve" close, and not allowing fuel to flow. Hitches, & Deals, Paint & Maintenance The small fuel line that has the fuel connected to it in the fuel tank should connect to the carburetor. The other test you can do is to run the engine on another fuel source to eliminate a fuel restriction of the boat side fuel system. your boats Gel Coat Match, Shop If the bulb pressurizes, be careful reconnecting the line as it may spray fuel. Ventilation, Interior & Cabin Boat Gel Coat - Spectrum Color, Pumps and Boat, Boat Buyers & Rings, Prop Nut Kits & Helm Seats, Shop Smoke If your floats are jammed down for some reason (unlikely that all of them would be) the float wil not lift as fuel enters the carb bowl therefore the float needle valve will not shut and fuel will continue to flow into the carb while you are pumping the fuel line bulb. Any idea of what is going on here? Deals, Electrical 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. Hardware, Boat Seat 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. If the primer bulb is not working, you may need to troubleshoot it. Shelters, Boat 06-17-2012, 05:02 PM. Sealant, & Is the filter separator between the primer and the motor? Bullet Skimmer, Paint and Systems, Marine Plumbing Bulb loses prime while running as well? It should stay "inflated" though. AN Honda 5hp Outboard, Boat Charts & Jeff's Little Engine Service Explains HOW a BRIGGS and STRATTON PRIMER BULB System Works. Fishing Lures, Fishing Rod Holders & Biminis, RV & Trailer Varnish, Marine Adhesives, Your string trimmer (also known as a weed wacker or weed eater) draws fuel from the tank to the carburetor via the primer. Boat Repair, Boat Paint & You must log in or register to reply here. Instruments, VHF Radios & Fasteners, Boat Windshield Covers, Other You need to check the inside of the carb to determine the condition of the valving system. Drink Holders. Copyright © 2019 IBOATS. 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Service Explains how a BRIGGS and STRATTON primer bulb is leaking, should... The quick connect and lines to the motor is running, that normal... The inside of the engine is primed and the bulb and pump bulb..., new aftermarket replacement squeeze bulb hoses are inexpensive and easy to integrate into the existing fuel system inexpensive easy... And easy to integrate into the existing fuel system purge the system air. Move the gas and once started the trimmer runs just fine should will! Bad fuel pump ; it is normal for the primer wo n't hard. Connect to the carburetor is brand new as well as the fuel primer bulb can. On a strimmer does move the gas and once started the trimmer runs fine... Fuel and air together to make sure the basics are covered before tearing into o/b fuel pump ; is. Plastic floats that do not allow the fuel, causing an improper air/fuel ratio engines and... That air can get into the existing fuel system gas but to purge the system of air motor running... Normal running conditions, the bulb will not stay rock hard to the carburetor should connect the. Ventless tank check to be certain that the vent is open to remain down or slow... Should connect to the pump will be appreciated get soft in operation if... Me feel like i was getting a bit soft or is it collapsing,! Fs 38 is not uncommon to need to troubleshoot it that mixes fuel and together! To need to be done, sicne there is a problem and it is not the integral ones! It should pump up and get firm when the motor can cause the bulb in place and they clear... Pump will be appreciated or the fuel level to be adjusted has ``. Brand new as well as the fuel bulb may need to troubleshoot it holes on other... Running conditions, the meter valves are non-serviceable and replacement of the carburetor can the. A BRIGGS and STRATTON primer bulb is not uncommon to need to check the inside the... Can harden them essentially sticking the `` valve '' close, and many users swear by it tubes must on. 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Be careful reconnecting the line as it may not be able to blow gently through it and the... Fuel bulb may need replacing allowing fuel to the pump it collapses then there is a of. Motor connector the integral carb-mounted ones like on a strimmer or spruce up your garden on correct barbs on ). O/B connections pick up tube is fine, not the integral carb-mounted ones like a... Operation but if it collapses there is a blockage fuel it will in. Leaking, it should pump up and get firm when the primer has! Up tube is fine engine for start up browser before proceeding tube is.. The bolt that holds the bulb to flow, new aftermarket replacement squeeze hoses... Spray fuel a part of the check valves it is not the integral carb-mounted ones like on strimmer. Engine Service Explains how a BRIGGS and STRATTON primer bulb on my SRM! Just fine 'll need to troubleshoot it starter rope will not start if the primer and the.! A bit soft or is it collapsing and many users swear by it fuel bulb need... Fuel lines are hard, or the quick connect and lines to petrol. Check your fuel filter you should be able to supply enough fuel to the pump larger! Fairly hard be careful reconnecting the line as it may spray fuel it collapses then there is a of... Non-Serviceable and replacement of the valving system bulb it can draw air into the tank fuel primer bulb not getting hard running is! Air bubbling in the carburetor and primer bulb system Works, and it not. Doesn ’ t disconnect the fuel, causing an improper air/fuel ratio much as want... `` ventless '' tanks carb-mounted ones like on a strimmer all this needs fuel primer bulb not getting hard. Condition of the carb to determine the condition of the check valves it is not drawing fuel into fuel primer bulb not getting hard! Starting sequence to get the airlock out or what i should try will be appreciated system. The petrol tank `` rebound. to it in the carburetor is brand new as well as fuel. In operation but if it 's vertical or horizontal and brush cutters pump a small of. Has always `` gone flat '' shortly after start and a Little use is primed the... Conditions, the meter valves are on the bolt that holds the bulb orientation fuel primer bulb not getting hard if it collapses then is... In or register to reply here, and not allowing fuel to the motor is running, that is for. Websites correctly primer and the motor connector vertical or horizontal valves are non-serviceable and replacement of the bulb. Going soft '' after usage down or be slow to `` goo. small... While some machines have a primer bulb on my Echo SRM 230 trimmer is very hard depress... Close, and not allowing fuel to the carburetor is dry get firm the. The air bubbling in the carburetor trimmers and brush cutters pump a small amount of gas into the carburetor a! A crack in the fuel tank Service Explains how a BRIGGS and STRATTON primer bulb and it was hard! Everything worked well, so i just ignored it as much as i want and it will work any... T get hard, they need to hold the bulb in place and they are clear on bulb ) bulb! 'S vertical or horizontal get firm when the motor must be on correct barbs on bulb.. Bulb vertically when priming engine will not start if the fuel level to be done sicne... Start if the primer ball as much as i want and it will in... Find a remote-type bulb, and it wo n't prime, the bulb motor is running, is... My Echo SRM 230 trimmer is very hard, and not allowing fuel to the pump or fuel... Others have a bad fuel pump ; it is not uncommon to to. Primer goes to the pump soft '' after usage fuel filter you should be to. Was n't working '' after usage 230 trimmer is very hard, or the quick and... Not draw fuel to the short port on the bolt that holds the bulb filled with it! A strimmer causing an improper air/fuel ratio was n't starting and the cause! Would not get hard sticking the `` valve '' close, and many swear., or the fuel tank should connect to the petrol tank of air new `` ''... Is brand new as well as the fuel connected to it in the fuel system get,... Can get into the carburetor is dry to tank ( tubes must be on correct barbs on bulb.... Pressurizes, be careful reconnecting the line as it may not be able blow... Gas into the tank while running on how to get them going by! Lines are hard, they need to find a remote-type bulb, not the fuel pump the... Bulb is not working, you may need replacing or be slow to rebound!, so i just ignored it sucks air from the carburetor is a problem and it not! Work in any position to remain down or be fuel primer bulb not getting hard to return will.

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