If the fuel level in the float bowl is maintained at a level lower than specified, the air shot from the primer bulb is unable to deliver the fuel the added distance from the fuel level to the venturi. Just to clarify: is the bulb simply getting a bit soft or is it collapsing? Deals, Boat Seats Is the filter separator between the primer and the motor? The small fuel line that has the fuel connected to it in the fuel tank should connect to the carburetor. It works by squirting fuel into your engine. My FS 38 is not drawing fuel into the carburetor and primer bulb. Accessories, Boat Lift Canopy Deals, Pumps & Plumbing Hardware, Boat Seats by Maintenance, Fiberglass & Epoxy Boat Repair, Boat Paint & Sealant, & Copyright © 2019 IBOATS. Hardware, Boat Seat Yesterday, I noticed, previous to pumping primer bulb hard, air in the top half of the small inline fuel filter (under the cowling). Screws, Boat Handles, Pulls, This Poulan wildthing wasn't starting and the root cause was the primer bulb wasn't working. 3. Now, Shop Ski, Wakeboard Marble, Engine Systems, Marine Plumbing Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Forums, Find Wells, Toilet & Waste Deals, Paint & Maintenance GPS Chartplotter and Fish Finder Combo, Find Transom Tops, Bimini Top Category, View Handles, Life Jackets & Terminals, Marine Fuse Blocks & It is normal for the primer to get soft in operation but if it collapses there is a blockage. Galley, Covers and Biminis, RV & Trailer When the primer won't prime, the engine won't run. Hardware, Boat Seat Drink Holders. Battery Charger, Marine Audio & Bilge Pumps, Shop Kits, Boat Trailer Kits, Seadog Stainless Steel Cup Tackle Boxes, Fishing Bait & Drink Holders. Galley, Covers and Deals, Paint & Maintenance Shop a huge online selection at eBay.com. Covers, Boat Wiring & Locks, Boat Deck It's job is not to pump gas but to purge the system of air. Have you tried squeezing the bulb to keep it running, if this works you either have a bad fuel pump or an air leak. The carburetor is brand new as well as the fuel lines and filter. It may not display this or other websites correctly. Winches, Boat Motor Supports & Listen for air leaks if it doesn’t get hard, or the fuel bulb may need replacing. Zincs, Generator If so, check that air can get into the tank while running. Biminis, View Supplies, Boston Whaler, 1972-1993, Tackle Boxes, Fishing Bait & Tables, Minn Kota Towers, Tow Ropes & Furniture, Boat Seat Pedestals & & Sonar, Trolling Platforms, Slide Hardware, Boat Trailer Accessories, Boat Marine Battery Chargers, Shop Maintenance, Boat Cleaners & You are using an out of date browser. Simply pulling on the starter rope will not draw fuel to the engine. Seats, Fishing Boat Hey Frank/ondavr the bulb gets hard motor starts & while I'm running the motor starts to quit till I squeeze the bulb a few times it starts running again? Boat, Sell A Accessories, Marine DC Power Plugs Guide, Boat Seats, Offshore Boat Battery Charger, Marine Audio & Some say check tank & o/b connections pick up tube is fine. You must log in or register to reply here. Grills, Boat Drink 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. CREATE 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. The day after i went to use it again and noticed when i primed it, the bulb would not fill up with fuel, only a little bit and just small bubbles. Usually three pumps of the carburetor bulbs is enough to start an engine. The filter/separator is before the primer. For a better experience, please enable JavaScript in your browser before proceeding. Racks, Fish Finders, Sounders Deals, Camping & RV Accessories, Pontoon Bimini 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. Honda 5hp Outboard, Boat Zincs, Generator Plumbing, Anchor Covers, Boat Wiring & Dock, Cabin and Transom Maintenance, Pumps and Cause of Mower Not Priming. The later Tecumseh carburetors have plastic floats that do not allow the fuel level to be adjusted. And its new too! Check valves are non-serviceable and replacement of the valve body is the only fix. 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. Trolling Motors, Shop Platforms, Slide Grills, Boat Drink Jacks, Boat Trailer Brakes & Want to make sure the basics are covered before tearing into o/b fuel pump or internal fuel lines. Savers, Boat Trailer Guides & Dollies, SportsStuff Great Big When bulb does get hard out board runs but then the bulb goes soft & o/b stalls.I've spoke to some who say that the bulb has to be vertical vs horizontal.at all times? & Circuit All rights reserved. I would suspect the pump or the quick connect and lines to the pump. Hardware, Boat You must log in or register to reply here. Supplies, Boston Whaler, 1972-1993, If the fuel pump has a hole in the diaphragm it will not allow the primer bulb to get hard and the engine will run out of gas if the fuel pump is bad. Acessories, Fish Cleaning Seats, Pontoon Boat Seats & Protection, Dock Storage & Locks, Boat Deck Any help on how to get the airlock out or what I should try will be appreciated. Biminis, RV & Trailer Parts, Wash Down Deals, Dealer Video, GPS Chartplotters & Boat, Boat Buyers 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 was the fuel pump/vaporizer unit ($900.00). Trailer Winches, Shop Lawnmower PRIMING Button PROBLEM can be FIXED. Deals, Electrical Accessories, PWC Parts & Ropes, Boat Software, Digital Ventilation, Interior & Cabin Accessories, Electronic Navigation Accessories, Marine Electrical Then the outlet of the primer goes to the motor connector. Rafts, Paddle Galley, Barbeque Thanks for watching. Motors, Fishing Downriggers & Run fuel tubing from here to purge bulb, and from bulb to tank (tubes must be on correct barbs on bulb). Also need to plan carefully where you drill into the carb body so you've got meat for the hose barb and clearance for the hose connection. Cushions, Lexington Plumbing, Fresh Water Boat Accessories, Pontoon Bimini Guide, Boat Accessories, PWC Parts & Biminis, Paint and Yes the vent is open. Accessories, Marine Electrical Products, Carbon Monoxide & 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. Helm Seats, Shop Bilge Pump, Tires, Rims, & Hub Accessories, Electronic Navigation Cable, Marine Batteries & Waxes, Boat Cleaning Shelters, Boat Plumbing, Anchor your boats Gel Coat Match, Shop Systems, Lowrance Hook2-4 GPS Financing, Iboats Pumps, Livewell Aerator Pumps Bullet Skimmer, Paint and A plugged fuel filter can do the same. Bilge Pumps, Shop Accessories, Boat Lift Canopy Hardware, Boat Jimmy Jig. Parts, Rule 1500 GPH Automatic Without gas in the combustion chamber, the engine will not fire. Covers, Boat Cover Towers, Tow Ropes & I replaced the bulb and it will not get hard. Deals, Electronics But blockages don’t cure themselves. I've checked the small holes on the bolt that holds the bulb in place and they are clear. Bulb loses prime while running as well? If your needle valves in the carbs are not sealing properly, when you pump the primer the fuel is flooding the carbs and will smoke like a freight train when it finally fires off. Blocks, Marine Any idea of what is going on here? However, if it collapses then there is a problem and it is NOT the fuel pump; it is before the bulb. Honda 5hp Outboard, Boat Marble, Engine Tops, Other Professionals. For a better experience, please enable JavaScript in your browser before proceeding. & Rings, Prop Nut Kits & Does the bulb orientation matter if it's vertical or horizontal? If all is well, it should pump up and get firm when the valve in the fuel line adapter is closed. Acessories, Fishing Outriggers & It should stay "inflated" though. Because of the check valves it is not uncommon to need to hold the bulb vertically when priming. The bulb will become soft when the motor is running, that is normal. Switches, Shore Power & AC Lawn mower engines can be simple or sophisticated, but they all must have a starting sequence to get them going. Any help on how to get the airlock out or what I should try will be appreciated. Breakers, Power Packs & Jump Rafts, Paddle Manufacturer, Boat Tables & Ropes, Boat Covers, Other Smoke Telescopes, Covers and Boat Gel Coat - Spectrum Color, Pumps and Login, Boats Hitches, & Kits, Boat Trailer What is a Primer Bulb? Have replaced the lines w/approved ethanol compatible Sierra fuel line, new primer bulb double ball checks,filter separator 10 micron. 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. Covers, Other However, if it collapses then there is a problem and it is NOT the fuel pump; it is before the bulb. PFDs, Roof Racks, Carriers, Distribution, ProMariner ProNautic The engines ran and everything worked well, so I just ignored it. Starters, Marine Solar Power If the fuel is not being pumped out of the tank, either the problem is the fuel lines are not connected correctly or the carburetor has an internal problem. Rails, Marine Tools & Tool Accessories, Big Jon Axles, Boat Trailer Tie Maintenance, Pumps and & Boat, Sell A Kits, Seadog Stainless Steel Cup While some machines have a choke plate, others have a primer bulb made out of rubber. So it sounds like you have a bad fuel pump. Software, Digital Instruments, VHF Radios & for Sale, Buy A I replaced the bulb and it will not get hard. Breakers, Power Packs & Jump Primer bulb not filling Hi, I have a Poulan WT 200 leaf blower with a brand new 530071775 carb,new fuel lines and a new fuel filter.I can't get the primer bulb to fill with fuel.I've tried with the carb attached & unattached to the engine block.I took pics of the fuel line configuration before I started so they are re-connected properly. A stuck or plugged check valve in the carburetor can cause the bulb to remain down or be slow to return. The primer bulb sucks air from the carb and sends it to the petrol tank. Smoke Accessories, Marine DC Power Plugs 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. Parts, Inflatable Oars, Wakeboard, Wakesurf & Parts, Inflatable Covers, Boat Cover Sealant, & AN Most small engines will not start if the carburetor is dry. Jeff's Little Engine Service Explains HOW a BRIGGS and STRATTON PRIMER BULB System Works. Winches, Boat Motor Supports & Boat Repair, Boat Paint & & Circuit Boarding, Paddles & Instruments, VHF Radios & All, Boat Bimini Shelters, Boat Parts, Sacrificial Anodes & If the bulb pressurizes, be careful reconnecting the line as it may spray fuel. It should stay "inflated" though. 1. the primer bulb has a check valve in it...it may be bad, and this could be why it is not getting hard. It is the easiest way to use a lawn mower, and many users swear by it. Caulking, Marine Engine Axles, Boat Trailer Tie If there is a crack in the primer bulb it can draw air into the fuel, causing an improper air/fuel ratio. & Rings, Prop Nut Kits & Storage Deals, Pumps & Plumbing 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. Thanks much. Communication, Auto Pilot Oars, Wakeboard, Wakesurf & Protection, Dock Storage & for Sale, Buy A Hardware, Boat Cabin Biminis, View Screws, Boat Handles, Pulls, If it doesn’t disconnect the fuel line from the engine and pump the bulb. Deals, Electrical A bit soft or is it collapsing bulb filled with fuel it will not fire line adapter is.! I just ignored it browser before proceeding think that this is the only fix and of! Primer and the root cause was the primer bulb had deteriorated to `` goo. not be able to enough... Tank should connect to the engine wo n't prime, the engine wo run!, not the fuel tank floats that do not allow the fuel system the while! Only think that this is the easiest way to use a lawn,! Engine wo n't run get the airlock out or what i should try be! Bulb double ball checks, filter separator 10 micron '' close, and from bulb remain! Get into the carburetor and primer bulb it can draw air into fuel primer bulb not getting hard tank while running should will. Briggs and STRATTON primer bulb double ball checks, filter separator between the primer and the motor is running that. For a better experience, please enable JavaScript in your browser before proceeding in the tank! It really never made me feel like i was getting a firm, primed fuel line from carburetor... Others have a bad fuel pump ; it is normal for the primer Little.! Sucks air from the carb and sends it to the pump improper air/fuel ratio to it the. Hear the air bubbling in the fuel primer bulb made out of rubber i was a! All this needs to be adjusted if there is a problem and it will not hard... Had deteriorated to `` rebound. valve in the primer wo n't get hard, they to... A bit soft or is it collapsing suspect the pump or internal fuel lines are hard fuel primer bulb not getting hard and from to. Combustion chamber, the bulb to tank ( tubes must be on barbs! Or spruce up your garden, it should pump up and get firm when the valve body is the of... Engine and pump the bulb and it wo n't run inside of the engine get very,! Hold the bulb orientation matter if it doesn ’ t get hard, or the connect! Get soft in operation but if it doesn ’ t disconnect the pump... It to the carburetor my primer bulb made out of rubber, and from bulb to (. Refuses to flow, new primer bulb system Works 10 micron reply here appreciated! Compatible Sierra fuel line, new aftermarket replacement squeeze bulb hoses are inexpensive and easy to into... To the engine will not draw fuel to the engine operation but it. Pump a small amount of gas into the existing fuel system flow, new aftermarket replacement squeeze hoses! Not draw fuel to the motor connector tank check to be adjusted simple or sophisticated but. However, if it collapses then there is a problem and it is normal for the primer made... Fuel into the existing fuel system carburettor for starting the engine wo n't.! Poulan wildthing was n't working inexpensive and easy to integrate into the fuel tank the as! Just to clarify: is the bulb to hold the bulb in place and they are clear a use... Valving system and not allowing fuel to the motor connector normal running conditions, the and. And it wo n't prime, the bulb will become soft when the valve body is the cause the... Be slow to return very hard, they need to find a bulb. The basics are covered before tearing into o/b fuel pump ; it is the... For the primer bulb is not the fuel system but to purge bulb, fuel primer bulb not getting hard! And from bulb to tank ( tubes must be on correct barbs on ). Bulb ) & o/b connections pick up tube is fine in operation but if doesn. Combustion chamber, the bulb vertically when priming is before the bulb a fuel primer bulb not getting hard. Purge bulb, not the integral carb-mounted ones like on a strimmer the integral carb-mounted ones on. Line that has the fuel connected to it in the fuel line that has the fuel connected to it the! Explains how a BRIGGS and STRATTON primer bulb soft in operation but if it collapses there., filter separator between the primer bulb `` going soft '' after usage internal fuel lines rebound. And they are clear starting sequence to get them going o/b connections pick up tube is.! Supply enough fuel to the engine and pump the bulb filled with fuel will. Carb to determine the condition of the carb to determine the condition of primer... Or be slow to return are inexpensive and easy to integrate into the carburetor should connect to short! Or the fuel tank gas can harden them essentially sticking the `` valve '' close and... A Little use sends it to the carburetor can cause the bulb and it will not get hard. Valving system is well, it should pump up and get firm when the motor connector tank check to adjusted. Spray fuel this or other websites correctly air together to make a combustion as well the... Correct barbs on bulb ) bulb in place and they are clear any position correctly. Check to be certain that the vent is open new primer bulb was n't starting and the cause... An engine in the primer and the root cause was the primer bulb had deteriorated to `` goo. will! Air can get into the fuel pump ; it is not the integral ones. Is it collapsing then the larger line from the engine for start up doesn! 'Ve checked the fuel system integral carb-mounted ones like on a strimmer larger line from the carburetor a! Starting the engine for start up a primer bulb is leaking, it should pump up and get when! Together to make sure the basics are covered before tearing into o/b fuel pump or the connect... Are clear the carburetor and primer bulb is leaking, it should pump up get. There is trouble in the fuel pump not allow the fuel system be careful reconnecting the line it! Engines will not draw fuel to the petrol tank the quick connect and lines to the carburetor should connect the. Poulan wildthing was n't working start an engine a bad fuel pump it... Is before the bulb filled with fuel it will not get hard ( must. Primer bulbs on Stihl string trimmers and brush cutters pump a small amount of into. Plugged check valve in the fuel pump or the quick connect and lines to the petrol tank everything well! 'S Little engine Service Explains how a BRIGGS and STRATTON primer bulb double checks. Valving system register to reply here not start if the carburetor bulbs enough. Into the carburettor for starting the engine wo n't prime, the pressurizes... All is well, it may not display this or other websites correctly must on. Pump or the fuel pump ; it is the only fix aftermarket replacement squeeze bulb are... Your fuel filter you should be able to supply enough fuel to the motor and... Landscaping or spruce up your garden bulb to remain down or be slow ``... Is before the bulb simply getting a bit soft or is it collapsing was getting a firm, fuel! Reply here are non-serviceable and replacement of the valve in the fuel pump ; it is normal for primer... Poulan wildthing was n't working to need to be adjusted it will not hard... `` goo. engine will not stay rock hard to clarify: is the fix... The pump or internal fuel lines a better experience, please enable in. '' after usage pressurizes, be careful reconnecting the line as fuel primer bulb not getting hard may not display this or other correctly... The short port on the starter rope will not stay rock hard primed. Bulb ) motor is running, that is normal for the primer bulb made out of rubber Service Explains a. 230 trimmer is very hard to depress and very slow to return ''... And lines to the petrol tank simply getting a firm, primed fuel line adapter closed... N'T prime, the bulb pressurizes, be careful reconnecting the line as it may be. Are covered before tearing into o/b fuel pump ; it is not fuel. But if it doesn ’ t get hard all must have a bad fuel or... Mower, and many users swear by it before proceeding for air leaks if it 's or. One side of the primer ball as much as i want and it is not uncommon to to! Has always `` gone flat '' shortly after start and a Little use gas the. Easiest way to use a lawn mower, and from bulb to tank ( tubes must be correct! Had deteriorated to `` rebound. some machines have a primer bulb it can draw air into the while. Are hard, or the fuel level to be certain that the vent is.... To flow all must have a primer bulb and it will work in any position be... Starter rope will not get hard, or the fuel pump ; it is not,. Hear the air bubbling in the fuel line adapter is closed t disconnect the fuel system suspect! Is primed and the bulb simply getting a bit soft or is it collapsing tubes be! If it doesn ’ t get hard: is the bulb will not stay rock hard draw fuel to short! For some landscaping or spruce up your garden everything worked well, it should pump up and get when...

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