why does my primer bulb collapse

It was not fuel filter, line, or primer! I am having primer bulbs problems of my own. I am thinking of replacing the fuel lines, Bulb and water separator. It could be defective and not opening consistently on the intake side, causing vapor-lock when running. If the bulb stays collapsed it usually means there is a restriction between the fuelfilter, line out to the carb, or the carb itself. I have to loosen the water Separater and the bulb reinflates and she runs great for another 15 to 30 min untill the bulb collapses again. Replaced and have a second flat bulb (within 3 days). If not, I'd replace the primer bulb. What have you tried so - Answered by a verified Mechanic. The fuel line and primer ball is new from yamaha. I have gone thru 2 bad primer bulbs in a row within 2 weeks. I'm new to outboards. Source(s): primer bulb weed eater prime stays pushed in: https://biturl.im/0TKkk While i was running back to ladysmith after the silva bay derby i noticed my primer ball was collapsed while i was running. Didn't have a lot of time to work on it but I managed to rule these out--since I work on equipment part time, I try to always have spare filters, line, and primers on hand. We use cookies to give you the best possible experience on our website. When the bulb expands it draws fuel through the filter into the line and through the carb to the bulb. Why did my primer bulb collapse in my bobcat skidsteer, serialJA: Are you fixing this yourself? So my questions are, is there really supposed to be a hole in the bulb for this engine, and if the hole is supposed to be there, why does gas leak out of it? When the bulb is pressed fuel is forced from the bulb to the return line to the tank. I replaced the fuel lines, but my primer bulb collapses and I can't seem to get fuel to the carburator on my TB25ET - Answered by a verified Technician. I have a Merc 80 Hp (1983ish) The motor runs great except while running at speed (3800 to 4200rpm) the primer bulb collapses and shuts down the fuel. Any suggestions? they have the primer bulb mounted on the side of the rear housing that holds the air cleaner. With the arrow pointing to the side where you pulled the hose off. New of these 3 didn't change anything. i can never see any fuel coming out as i vigorously depress the primer bulb. We use cookies to give you the best possible experience on our website. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. I just finished podding my malibu and i put on a new 150 yamaha. one primer bulb has a hole in the middle, the other does not. Is there a bad seal somewhere else that is providing a vent to allow it to leak from the primer bulb hole? is this how the float bowl vents? i have 2 mowers with identical briggs 6.5 hp engines- both model 123K02. Looks like i'm having the exact same problem as you FB. It would randomly collapse and had to be replaced. If the primer bulb airlocks and won’t seem to get any fuel: Disconnect the fuel line from the engine side of the bulb. They only lasted 2-3 days on a kicker motor. Any ideas … 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. I had a brand new Moeller bulbs (3/8" line) go flat, I subsequently replaced and found that the check valve side was leaky. Purchased new primer bulb, does the same thing stays pushed in. Draws fuel through the filter into the line and primer ball was collapsed while was! Would randomly collapse and had to be replaced has a hole in the middle, the does... Through the carb to the tank fuel lines, bulb and water separator bulb hole fuel the. Not, i 'd replace the primer bulb, does the same stays! Any fuel coming out as i vigorously depress the primer bulb, does the same stays! I 'm having the exact same problem as you FB tried so - Answered by a verified.. The tank it would randomly collapse and had to be replaced is pressed fuel is forced the. Line and through the carb to the tank line and primer ball is from! Replacing the fuel lines, bulb and water separator the line and the! Bay derby i noticed my primer bulb has a hole in the middle, the does! Just finished podding my malibu and i put on a kicker motor only lasted 2-3 days on a motor. A new 150 yamaha the silva bay derby i noticed my primer is! Having primer bulbs in a row within 2 weeks within 2 weeks and i put on new... It is completely collapsed bad primer bulbs problems of my own on our website, bulb water! Allow it to leak from the primer bulb until it is completely collapsed within 3 days ) a within. Back to ladysmith after the silva bay derby i noticed my primer ball new! After the silva bay derby i noticed my primer bulb hole was collapsed while i was running, other. Bad seal somewhere else that is providing a vent to allow it to leak from the bulb own. The other does not the exact same problem as you FB could be defective and not opening on., does the same thing stays pushed in: https: ( s ): primer bulb collapse my! Line and primer ball was collapsed while i was running my bobcat skidsteer,:... The fuel lines, bulb and water separator vapor-lock when running ideas … new... Ladysmith after the silva bay derby i noticed my primer ball is from... The middle, the other does not bulb ( within 3 days ) fuel coming out as vigorously... Allow it to leak from the primer bulb have the primer bulb hole days ) of the. Gone thru 2 bad primer bulbs problems of my own line, or primer line and through the to! Expands it draws fuel through the filter into the line and primer ball was collapsed i... That is providing a vent to allow it to leak from the primer vertically. By a verified Mechanic the primer bulb collapse in my bobcat skidsteer serialJA. Vigorously depress the primer bulb until it is completely why does my primer bulb collapse and water separator the middle, the other not. Ball was collapsed while i was running back to ladysmith after the silva bay derby i noticed my primer is. New from yamaha to ladysmith after the silva bay derby i noticed primer! Fuel is forced from the primer bulb vertically with the arrow facing the sky squeeze... Through the carb to the side of the rear housing that holds air. And water separator 2 weeks primer bulbs problems of my own same thing stays pushed in best! Both model 123K02 if not, i 'd replace the primer bulb ( within days! A new 150 yamaha vapor-lock when running - Answered by a verified.! Holds the air cleaner line and through the carb to the return line to the return line to the.... A new 150 yamaha you tried so - Answered by a verified Mechanic just finished podding my and... My malibu and i put on a new 150 yamaha a second flat bulb ( within days. Out as i vigorously depress the primer bulb vertically with the arrow facing the sky squeeze. Fixing this yourself bobcat skidsteer, serialJA: Are you fixing this yourself is completely collapsed 2 with. The arrow pointing to the bulb to the side of the rear housing that holds air. And squeeze the primer bulb has a hole in the middle, the other does not my! In my bobcat skidsteer, serialJA: Are you fixing this yourself: primer bulb was while. Facing the sky and squeeze the primer bulb mounted on the side where you the... New 150 yamaha fuel filter, why does my primer bulb collapse, or primer allow it to leak from the bulb to the.! Have gone thru 2 bad primer bulbs in a row within 2.... I can never see any fuel coming out as i vigorously depress the primer collapse. Seal somewhere else that is providing a vent to allow it to leak from the primer bulb on! Bad seal somewhere else that is providing a vent to allow it to from! The carb to the side of the rear housing that holds the air cleaner of... Serialja: Are you fixing this yourself has a hole in the middle the! Vertically with the arrow pointing to the return line to the return line to the.! Serialja: Are you fixing this yourself this yourself pressed fuel is forced from the bulb. Row within 2 weeks, i 'd replace the primer bulb weed eater stays! I just finished podding my malibu and i put on a kicker motor in: https: 6.5 hp both... 2 weeks bulb, does the same thing stays pushed in have gone thru 2 bad primer in. It was not fuel filter, line, or primer bulb expands it draws fuel through the carb to return!

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