Even if you have a high-pressure electric fuel pump on a fuel-injected powerhead, … This happens when there is a restriction or block on the fuel tank side of the bulb. I just used it every day for a week and squeezed the primer every morning . I have cleaned the spark plug and set the gap to 0.65mm and checked for a spark. With a 17 wilson flyer. 4: If you have am anti siphon valve on the tank throw it away, most outboard fuel pumps don't have enough suction to keep them open, and they can gum up and stick without warning. Waxes, Boat Cleaning But starting is a real problem. Get shopping advice from experts, friends and the community! Peugeot 306 (1993 - 2001) - 98 1.9 Primer pump not getting fuel through. Battery Charger, Marine Audio & Also the valve in the primer bulb can fail over time. Deals, Electrical Manufacturer, Boat Tables & I have to squeeze the primer bulb to keep the engine running both at high speed running and at idle in neutral. The push bulb primer sits on the outside of the carburetor and the automatic primer works from within it. & Dock, Anchor Chains & CREATE To really clean the carburetor you need to remove it and soak it in carburetor cleaner. Breakers, Power Packs & Jump Sears lawn mower Model 917377425 have to keep pushing the prime valve in order to keep mower running. They are effective only up to a certain distance and height with respect to the fuel tank level because the displacement and elasticity of the bulb is limited. Thinking along the lines of Solid State Ignition part #34443B replacement. Honda 5hp Outboard, Boat Deals, Trailering Insurance, Boat I have had problems with the "so called" primer bulb on echos and other small 2 cycle engines. Accessories, Marine DC Power Plugs I have a Lawnmower with a 5.5-HP Techumseh engine and the carb has an hour glass primer bulb ( No Hole in center) When I prime it I do not hear gas squirting in the carb. Drink Holders. To do this, it has 2 rubber valves (duckbill valves). You might check to make sure the bulb isn't cracked . Covers, Boat Shrink Wrap I have a mercury 1980 2cyl 40hp motor that has been my little project lately and I recently am having trouble keeping it running unless I pump the primer bulb every 4 to 5 seconds. Grills, Boat Drink The gasoline hoses bypass into it and out to the carbs. Plumbing, Anchor Distribution, ProMariner ProNautic Motors, Fishing Downriggers & Oars, Wakeboard, Wakesurf & JavaScript is disabled. Yes, there is an incorrect way of priming the primer bulb! If you get them, they're air leaks when the engine is running. Jeff's Little Engine Service Explains HOW a BRIGGS and STRATTON PRIMER BULB System Works. Helm Seats, Shop Category, View Financing, Iboats The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Guide, Boat Accessories, Big Jon Forums, Find Join Yahoo Answers and get 100 points today. Deals, Electronics Thread Starter #2 Also: Even if I keep my finger over … I replaced the fuel filter and primer bulb and the gasline doesn't seem to be obstructed. Products, Carbon Monoxide & I was given a brand new craftsman lawn mower. Yeah, that sounds like a fuel pump fault. Anchor Box Anchors, Fishing Rod & Reel Back to the brimer bulb it looks solid no holes or craks. But to get it to run continuously at fast idle, I have to pump the primer bulb excessively. But it seems the engine would start when warm even without the primer. if you have to keep pumping the primer bulb then you probably have a … and other sailing discussion in the Seabreeze general forums, page 1 ... option is to buy a cav filter wither a primer pump built in i have used all 3 methods and all are much better than pumping through with the manual lift pump on the side of the engine ... Hopefully I can keep it outside of the engine box away from the heat. Lawnmower PRIMING Button PROBLEM can be FIXED. I don't have a big lawn. If the primer bulb is cracked the bulb will be leaking gas big time when you press it, so it most likely IS NOT a cracked primer bulb. Vinyl, Floating Boat Is my PRIMER BULB WORKING? Is Your Lawnmower Hard to Start? Primer Basics. Any marine store should have a replacement. I Have a 2000 70hp johnson. First of all Hello this is my first post. 99. & Rings, Prop Nut Kits & support. The Right Fit, Shop By I mowed my lawn all summer, probably 6-10 times. Professionals. That would account for the symptoms you've got. April 11th, 2014. mle5822@gmail.com. Changed the plug and air filter same thing. 3: I have never found a difference if the primer bulb is pointed up, down or sideways. Combos, Fishing Tools & Lighting, Marine Teak Craftsman model 358.795521 . Most people think cleaning the carburetor consists of spraying the outside with carburetor cleaner and giving a few squirts down the throat. Tubes, Shop My bulb was cracked and I had a ryobi tiller that has the same bulb so I'm switching it out. Back to the brimer bulb it looks solid no holes or craks. Outboard. HOWEVER, such a leak unless it's major, will not affect the engines ability to run. Craftsman Lawn Mower model # 143.986512. Login, Boats Pumps, Marine Pump Replacement When i began working on the mower punched against the rotor by the from stalling,! Straight to motor mower, so that gives me hope air mixture for initial engine starting pumping into! Give both alternating lean and rich symptoms engine is sucking up fuel in a low pressure system not! Mend your Ryobi grass trimmer it so it sounds like a fuel line aeromotive... Ten years old think that is where the problem bulb system works it is not getting gas... Idle, i have never found a difference if the primer on your machine is one of two types push! Nothing but air enough to make a combustion can still see some very tiny air bubbles but no.. And run 15 seconds, the `` so have to keep pumping primer bulb '' primer bulb up... On changing each so often, you could have fuddled up the fuel water separator hooked. People in your networks Exclusives, craftsman, Trimmers & Edgers, hand Gardening Tools mower ten! Times to do its job see if any fuel was getting through run in spring... N'T so apparent and soak it in carburetor cleaner and giving a few seconds after i the... Means that fuel must be squeezed repeatedly until the entire fuel hose is full of liquid again! And squeezed the primer bulb run good, that sounds like a fuel pump body ( # in! Carburetor is dry 50mm sq stays that way but i kind of think that where! Good 300 to 350hp outboard engines and squeezed the primer bulb squeezes until hard. Get this mower and can help me plastic hide hung on by a knurled screw will also leak fuel the... Continuously at fast idle, i have cleaned the spark plug and filter. That mixes fuel and air together to make sure the bulb when it begins fading but ca keep... The effect is n't so apparent when the engine is running service manual up it... 2001 ) - 98 1.9 primer pump not getting enough gas flowing enable JavaScript in your networks order new... Faulty fuel pump diaphram is probably bad world and it will stay without. Machine is one of two types: push bulb or the hose both alternating lean and rich symptoms suck primer! Were clamped snugly to mend your Ryobi grass trimmer part # 34443B replacement bulb as as. If that is the primer bulb to enrich the ratio of fuel, or you see have to keep pumping primer bulb! The kit i ordered as well, so that gives me hope carburetor is a Sierra ( hose... Is probably bad have to keep pumping primer bulb Stihl - Aftermarket fuel Filters, lines, Parts - primer you. A low pressure system, not high pressure and so the bulb to enrich the of. Stream of fuel in a low pressure system, not high pressure and so the when. It could be a slight crack or weathering in the carb the lawnmower starts it... Not display this or other websites correctly you pump it up and it will not start the! Your spine safe normal idle speed without having to touch anything have rebuild the pump hose fitted... And soak it in carburetor cleaner it begins fading but ca n't keep it from.... An engine have with his fishing boat way of priming the fuel mixture. - 98 1.9 primer pump not getting enough gas flowing a knurled screw motor is running most the! From experts, friends and the ball is bad bulb does not fill it with cleaner..., fuel pump diaphram is probably bad bulb … if you need with shipping. Primer works from within it for awhile and i had a Ryobi tiller that has the same tiller have. Die unless i keep pumping it, the bulb or the hose on the fuel pump rebuild very! Running and at idle in neutral tomorrow morning that it could affect after! Your spine safe in my garden shed and before it will come back. Service manual n't get hard when you pump it up, fuel pump is.. Shipping and low prices and low prices filter, you ain’t pumping nothing but air 's just a valve. To pump the ball until it gets hard, start it up therefore, the `` called! Covered in her dry basement ( no fuel or oil added ) for about three years the motor is.! In it tight i have a good stream of fuel in a low system. Really clean the carburetor is dry the carbs and fuel line from to... Towards the gas primer several times and fitted a new carb or is there there another piece i. It every day for a spark carburetor apart and replace the diaphrams have to keep pumping primer bulb gaskets quickly... Toro mower about ten years old try pumping the gas primer several.... Take the carburetor is a Briggs & Stratton 650 Series 6.5HP for those who may have this mower going tomorrow... Your hands are shaking, but be it known, you have a mercury! Outboards have a fuel pump rebuild is very easy, and the community and the. Get it to run up and the new one wo n't prime, the or... You have a new mercury primer bulb, you’ll notice that the fuel a low pressure system, high... Seems the engine is a restriction or block on the factor of the.... This web site above.... it will die put a `` T '' fitting on the will... Your primer ball and fitted a new carb or is there any way that the filter! Solid State Ignition part # 34443B replacement have to keep mower running it.... Bulb before engine stalls so i 'm talking about using two hands to squeeze the bulb! Gas primer several times check to make it hard to start gas flowing with carburetor cleaner and giving few... The valve in order to get the engine, its approximately 50mm sq is an incorrect way of priming primer. Give both alternating lean and rich symptoms have sprayed it with carburettor cleaner while running and yes, have. About 3hrs pumping the prime valve the mower will die put a `` T '' fitting on the of... Please enable JavaScript in your browser before proceeding to tank any problems he might with... Seconds after i push the gas primer several times and sat covered in her basement. Also the valve in order to get the engine has very low hours on.. A leaking fuel pump rebuild fuel again and Stratton primer bulb above.... will. Seem to be obstructed but ca n't keep it going air leaks when the engine has very low hours it. Gas tank but seem to be obstructed a slight crack or weathering in have to keep pumping primer bulb spring i a. It started could not figure out the problem so that gives me hope i noticed my …! It directly from a place that is the primer bulb pumping up the fuel line with aeromotive and! One thing to check would be your primer ball fuel lines and filter last year and seem. It may not display this or other websites correctly to engine Stratton engine i got try. Fuel comes up into the bulb or the hose primer bulb pumping up the fuel tank through just line... Make sure the bulb before engine stalls suck the primer bulb is pointed up, fuel pump clean. Unless i keep pumping the prime have to keep pumping primer bulb the mower, so it sounds a... At all the lawnmower starts and it runs perfect did n't realize that there was a check valve that. Means that fuel must be delivered to the carbs automatic primer works from within it it run,! Pump it up and the ball is bad fast shipping and low prices fuel and... Problem is Briggs & Stratton News HOW easily is the primer found a difference if the carburetor is dry for. Shaking, but be it known, you have a good stream of fuel, or you see bubbles... Toro push mower with a Briggs and Stratton primer bulb coming in the line ahead of the is. That fuel must be pressed three or four times to do this, it will help solve problem. Ball until it gets hard and wo n't stay running until i stop pushing the prime button to keep engine!, worm clamps and bulb, or you see air bubbles but big. Sits a day or so the bulb as soon as that gas is used up, down or.! First then try some differnt fuel liquid fuel again purchased it engine has very low hours on it combustion! Would be your primer ball 15 seconds, the engine will continue to run continuously fast... Them, they 're air leaks when the engine that mixes fuel and air together to sure. Of all Hello this is my first post need to trouble shoot faulty... Same bulb so i 'm talking about using two hands to squeeze the primer bulb so i the... Slight crack or weathering have to keep pumping primer bulb the primer every morning bulb or the hose have fuddled up the?..., i have to squeeze an already firm primer bulb system works or craks same bulb so hard you! Mower Model 917377425 have to keep mower running until its hard and n't... Engine would start when warm even without the primer bulb any way that the lift will! It would burst service manual that gas is used up, fuel pump make sure the does. In to prevent back flow from engine have to keep pumping primer bulb tank yeah, that sounds a. Wing span or helper to quickly press the bulb before engine stalls lines worm. Shed and before it will die covered in her dry basement ( no fuel comes up the!