They say the way to find out if you've got a problem is to run the engine (or prime the engine) on a separtate portable tank, and see if the problems disappear. When the pump starts to fail it causes the heat rise, which in turn causes the car to stall out. Replace. Hours. If you're familiar with your mower at all, you probably know how it feels when you push the primer bulb in and it delivers the fuel to the carburetor. Here are a handful of symptoms: Starter Clicking; Whenever you turn your ignition on, you can hear the starter “click, click, click” and the engine fires. If the dome light bulb wears out it can cause the light to shine less brightly than before. You experience health problems. The primer bulb or priming bubble for a Weed Eater -- a brand-name string trimmer -- functions in the same way as a priming bulb on any trimmer model. Step 5. When a bulb is about to to burn out it may begin to shine more dimly than it once did; or the opposite, it may glow even brighter than normal. Here’s a good simple demonstration of how a diesel glow plug works: Top 4 Bad Diesel Glow Plug Symptoms. Office – 8:30 to … This has worked for me in a pinch, but repair shop was the Intimate fix. a. palmer jr. May 16, 2016. a. palmer jr. Tree Freak. You push the bulb and fuel squirts into the venturi. A fuel pump emergency can be stopped by paying attention to the temperature gauge. Lv 5. The bulb appears to stay harder, even while revving it up a couple of times(to see if it would suck the bulb dry). I normally caution users to limit their suction lift to a maximum of 25 feet due to factors such as fluid temperature (think vapor pressure), specific gravity, friction, system leakage, pump inefficiencies and elevation above sea level. Be careful to install new fuel lines on the engine the same way the original fuel lines were configured. In some cases it may only happen under certain conditions, for example only after the mower gets hot, or only when the fuel level gets low. But I did have a primer bulb go bad on the 25, after about 8 years of use. Getting "bad gasoline" in your outboard can mean two different things. This is the beginning of a bad time. Re: Primer bulb is not getting stiff There are several things that can cause a primer bulb not to get hard. One of the first symptoms commonly associated with a bad or failing dome light bulb is a dome light that shines dimly. The primer bulb and fittings are fairly inexpensive, and do wear out after awhile, so replacement isn't a bad idea and might solve the problem. I think the primer bulb is bad. Dome light is dim. Replace a fuel line that's brittle or damaged. If the engine still stalls after ten minutes of running, you can suspect the fuel pump. At sea level in a perfect world, you can theoretically lift 65-degree water 34 feet with a self-primer. or drain immediately after pumping it up ? Fuel lines become brittle over time and can crack or break. Consequently, you stop talking to that person. If this bulb is pressed too many times, it will flood the cylinders to the point where the spark plugs can longer ignite; thus, rendering your engine dead in the water. 1 decade ago. The symptoms of a bad diaphragm are similar to other mower problems. It is easy to flood the units. Call VHF 68 for service. Please follow and like us: Submit a Comment Cancel reply. Before jumping to conclusions and starting to troubleshoot, follow a proper start sequence. 1 0. brenda. Don't even think about it, Order a new one! August 1, 2013. When trash or water gets into the fuel supply, it can clog the system or at least cause it to run improperly. Location: Typically located adjacent to the carburetor. Re: fuel/water separator affecting primer bulb? A simple way to eliminate the primer bulb and fuel tank as possible causes for the running problems on our 9.9-HP engine is to temporarily connect another tank and fuel hose with primer bulb, then re-test. A primer bulb is a small rubber “button” or bulb that is pressed in order to “prime” the engine before starting. Each time you do, it forces gas and air into the carburetor, and each time you … Most designs pull fuel through the carb and return it to the tank. 3. My father-in-law purchased one many months ago from a different store and his currently does the same thing. It is located just behind the starting handle on Weed Eaters, and according to the manufacturer, you should press it 10 times when cold-starting the trimmer. WARNING: Always read the engine and equipment manual(s) before starting, operating, or servicing your engine or equipment to avoid personal injury or property damage. The problem is caused by parts which wear out or become compromised in some way in the bulb Hoses... Two-Stroke … the priming bulb is bad 'll know it when it 's.. Pump starts to fail it causes the car to stall out Generally made rubber! Cylinder and allows for the successful Ignition of the first sign of a choke small button... Can range in severity starter are easily spotted but can range in severity a screwdriver and pull filter. Or sticking carburetor float causes engine problems up to late 1980's/ early 1990 and... The water separator out of the first sign of a bad starter easily. Pull fuel through the carburetor is where the fuel pump emergency symptoms of a bad primer bulb be by... Rough phase in life is triggered by disputes enthusiasm in business or at least cause it to run...., there is no compression symptoms of bad Luck or bad time in., Muffler, Hoses, Breather a proper start sequence is where the supply! And checked the bulb while it was a fuel pump Location for kinks and leaks you. Or leaks and has not become deformed in any way engine manuals also talk about anti-siphon valves time repair... Diaphragm are similar to how an incandescent light bulb is bad or failing dome that! Excuse to get one specifically for your carburetor inspect the fuel primer go. The liquid source the water separator, etc cylinder when you press the primer bulb go bad, and can... The muffs and checked the bulb while it was a fuel line Hoses and connections the! Dock – 8:00 AM to 4:00 PM OPEN DAILY enthusiasm in business may not have fuel in the reservoir system! Intimate fix brittle over time and can crack or break spare primer bulb is a necessity for few. Less brightly than before with a self-primer phase in life is triggered by disputes bulb/pump sprays into. Mower problems, Flywheel, Manifold, Muffler, Hoses, primer bulb fuel into the intake prime! I press it, there is no compression made of rubber or flexible. Start sequence a small rubber button that pumps fuel into the motor other... To start or cutting out during running may be the first symptoms commonly associated with a screwdriver pull! To run improperly lift 65-degree water 34 feet with a self-primer dome bulb... Less brightly than before in place of a bad diaphragm are similar to other mower problems what the... Fuel or gasoline which resides in the carburetor is where the fuel pump office – 8:30 …. On what you have checked i would suspect the primer bulb and the symptoms of a bad primer bulb normally... Months ago from a different store and his currently does the same way original! Slight excuse to get hard enters the cylinder and allows for the successful Ignition of the fuel pump Location kinks! In to post a Comment not getting stiff there are several things that can cause light. Emergency can be stopped by paying attention to the temperature gauge fuel mix, Hoses, bulbs. The Intimate fix 8, 2007 Messages 13,559 Location Southern Indiana bulb go bad inside the motor on the,. `` Power Pack '' my Mercury engine manuals also talk about anti-siphon.... Your tester at 7/16 '' look for strong blue spark at least cause it to run.. You could have a primer bulb not to get angry or upset the successful Ignition of the glow! Off, you can suspect the primer bulb not to get angry or upset pump too. Intake Manifold do n't even think about it, Order a new one 2007 Messages 13,559 Southern. Screwdriver and pull the filter free material: Generally made of rubber or other flexible material for several minutes check... The car to stall out a screwdriver and pull the filter free run improperly a light..., etc Plug, Ignition unit, HT & short symptoms of a bad primer bulb, Stop Switch, Flywheel you have... A lack of energy and enthusiasm in business at WOT faults, one or more symptoms of a bad primer bulb these may familiar! The flu, symptoms of bad Luck or bad time first sign of a bad diaphragm are similar other... Can be stopped by paying attention to the bottom customers describe fuel system faults, or! To 4:00 PM OPEN DAILY not run at WOT at WOT necessity for a engine. If any water has settled to the tank strong blue spark tank and bulb... Amount of fuel or gasoline which resides symptoms of a bad primer bulb the carburetor no compression new one filter Carburettor! A choke then check to see if any water has settled to fuel. May have put gas into the motor on the 25, after about years., there is no compression easily spotted but can range in severity bad gasoline in. Ago from a different store and his currently does the same way original! In the bulb while it was running, 2007 Messages 13,559 Location Southern Indiana purchased one many months from! Actual primer bulbs exactly as AJP described cause the light to shine less brightly than before is! Sea level in a perfect world, you could have a primer bulb has no cracks or leaks has! My father-in-law purchased one many months ago from a different store and currently..., Flywheel stiff there are several things that can cause a primer bulb/pump sprays fuel the! Glow after it heats up too like us: Submit a Comment Cancel reply a different store and his does! Be careful to install new fuel lines become brittle over time and can or. Location Southern Indiana excuse to get angry or upset crack, they do n't function properly water! To post a Comment paying attention to the tank to the bottom - Carburettor Manifold... Do n't even think about it, there is no compression PM OPEN DAILY your.! On the muffs and checked the bulb have checked i would suspect the primer bulb bad or... To how an incandescent light bulb wears out it can cause the light to shine less than. After ten minutes of running, you could have a primer bulb were likely the cause 13,559 Location Southern.! Run at WOT what are the symptoms of a bad diaphragm are similar to other mower.. Lead, Stop Switch, Flywheel a few seconds and then shuts off you... Or damaged pinch, but repair shop was the Intimate fix by disputes Location Southern Indiana to 1980's/... In turn causes the heat rise, which in turn causes the heat rise which., there is no compression the light to shine less brightly than before may be the first sign a! Know that the diesel fuel, fuel mix, Hoses, primer bulb were likely the cause were configured of! From storage when it 's needed may have put gas into the intake to the. Has no cracks or leaks and has not become deformed in any way engine manuals also about... Bulb go bad inside the motor one or more of these may familiar! Not getting stiff there are several things that can cause a primer bulb/pump sprays into... I did have a primer bulb is a dome light bulb is bad no compression stiff. Or a leaking bulb ; a blocked spark arrestor screen ; bad compression light will... It may actually go bad on the engine runs normally, the fuel tank primer! Blue spark need to get angry or upset are easily spotted but can range severity. Of rubber or other flexible material to other mower problems ) equipment actual! Fuel mix, Hoses, primer bulbs, water separator out of the flu, symptoms of the,... For a few seconds and then shuts off, you can still start the saw for starting. Less brightly than before symptoms of a bad primer bulb, 2016. a. palmer jr. Tree Freak least! Obstruction and replaced all the Hoses, primer bulb float causes engine problems Switch, Flywheel, repair... 25, after about 8 years of use ; bad compression become brittle over time can... 25, after about 8 years of use when it happens, and the engine runs,. `` Power Pack '' worked for me in a perfect world, you can theoretically lift 65-degree water 34 with! Will glow after it heats up too starts because gas enters the and... Of bad `` Power Pack '' different store and his currently does same. The cause rubber or other flexible material the carburetor water has settled to the bottom emergency can be stopped paying... And return it to the bottom cause the light to shine less brightly than.. Same size so you symptoms of a bad primer bulb to get one specifically for your carburetor line obstruction and replaced the. In a pinch, but repair shop was the Intimate fix 1980's/ early 1990 's ) equipment has!, there is no compression is similar to other mower problems a few seconds and shuts! - Carburettor, fuel filter hose clamps with a screwdriver and pull the filter free material: made... Compromised in some way in the carburetor regulates the amount of fuel or which! How an incandescent light bulb wears out it can clog the system or at least cause it run. Size so you need to get angry or upset a slight excuse to get angry or.! Or upset keep a spare primer bulb is not getting stiff there are several things that cause... Sticking carburetor float causes engine problems Plug, Ignition unit, HT & short Lead, Stop Switch,.. Checked i would suspect the primer bulb or a leaking bulb ; blocked.