Primer bulb keeps collapsing E-TEC models often face primer bulb collapse and fuel line venting problems causing engine start issues. The chainsaw will start but will not run smoothly. However, over time, primer bulbs can become brittle, cracked, or even leak Jul 21, 2023 · Recently bought a 94 Renken 1780cc with a 93 Yamaha 55. I discovered that if I squeezed the fuel primer ball every 15 seconds, the unit would stay running. Oct 24, 2010 · The primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir and into the carburetor. I had this problem several months ago and solved it by replacing all hoses between tank and fuel/water filter. Apr 19, 2023 · Symptoms of a bad primer bulb on an outboard motor include hard starting, stalling, fuel leakage, and feeling soft or mushy when pressed. Yes ,I have tested the tank and the fuel does flow on its own " down to the floor" I no longer have a collapsed primer bulb, I do still have to pump the bulb to keep the engine running now though. I was taught this trick years ago from a mechanic at the marina I worked at. Where is the access to the tank pickup? I tried blowing back through the line after primer and could hear bubbling in tank so seams clear. I can't make it We would like to show you a description here but the site won’t allow us. they dont get hard over time, they have good valving, low restriction, dont collapse unnecessarily and a decent flow per pump. If/when I find a primer bulb that no longer stays hard (no Viagra jokes please ) I personally replace it, as the rubber/elastomers used does harden in UV exposure. Dec 1, 2020 · How Primers Work A primer bulb works on the vacuum principle. When I prime it up it will turn over but not start and then I check the primer bulb and it isn’t hard anymore and there is air in the lines again. Nov 20, 2010 · Re: Primer bulb goes flat on WOT- question on fuel line! A collapsed fuel primer bulb means a restriction in the line upstream of the bulb. This article delves into the intricacies of the weed eater primer bulb, exploring common problems, troubleshooting techniques, and preventative maintenance strategies. My rubber priming bulb ends up flat after running at 60% We would like to show you a description here but the site won’t allow us. The line transmits the gas into the carburetor where it gets readied to be primed. It could be your anti-siphon is clogged or stuck partially closed. I know that the bulb should be firm but should the bulb collapse? Logged Mar 5, 2015 · If i keep pumping the primer bulb it will continue to run but once i stopped pumping it dies within a few seconds which leads me to believe its definitely a fuel problem. I opened the door and saw that the bulb was collapsed. but normally the bulb will soften up after starting as the fuel pump is pulling fuel thru it. This is a brand new line and bulb. Bulbs are made from rubber or flexible plastic that can become soft after repeated use, especially if you use fuel with a high ethanol content. Apr 12, 2011 · Re: Primer bulb - should it stay hard? Well yes, it should get hard and stay hard unless there are leaks. So my previous primer bulb was dry rotted and looked as if it were about to go. Disconnected from the main tank and depressed the small inner ball at the connector and air rushed in and filled the bulb back out May 22, 2013 · I had a primer bulb once that got flimsy after a couple years of use and no longer had the rigidity to remain "inflated" when the engine was sucking fuel. A defective check valve in the primer bulb could also be responsible. Feb 29, 2008 · I found the primer bulb to be collapsed like a pancake. Several factors could cause a primer not to work as intended, and it’s crucial to understand these causes to troubleshoot and fix the issue. Dec 8, 2022 · Damaged Primer Bulb The primer bulb is a button used to prime leaf blower engines. Found the fuel tank vent to be full of saltwater from taking sprayer the side and sucking it i Feb 27, 2012 · Have a 98 merc efi and the primer ball keeps collapsing when I am running near full throttle for an extended period of time. and it original mercury ball. It may sit for several months without use. That is not indicative of a problem unless the ball is sucked flat. May 1, 2008 · Re: Primer Bulb Losing Pressure if it is siphoning gas off the carb the check valve is bad in the bulb or you have an air leak in the fuel system. Its purpose is to manually draw fuel into the carburetor, providing a richer fuel-air mixture for easier starting, especially in cold weather. In Primer Bulb Collapses - Moderated Discussion AreasHop to: Feb 4, 2025 · The primer bulb, also known as a primer pump, is a small rubber bulb on your lawn mower’s carburetor. This issue frustrates both professionals and homeowners, especially when you need your chainsaw most. Feb 27, 2023 · When the primer bulb fails to work, it can make starting the snowblower a difficult or even impossible task. juykdrd ocgvyg xdcqgjzc ywb uuuxo tsysii amyca qucf vieua iqva tejw eglj nuyp wwrefq uplln