Purchased new primer bulb, does the same thing stays pushed in. 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. 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. Hold the primer bulb vertically with the arrow facing the sky and squeeze the primer bulb until it is completely collapsed. If the bulb stays collapsed it usually means there is a restriction between the fuelfilter, line out to the carb, or the carb itself. While i was running back to ladysmith after the silva bay derby i noticed my primer ball was collapsed while i was running. They only lasted 2-3 days on a kicker motor. i can never see any fuel coming out as i vigorously depress the primer bulb. If the primer bulb airlocks and won’t seem to get any fuel: Disconnect the fuel line from the engine side of the bulb. What have you tried so - Answered by a verified Mechanic. Replaced and have a second flat bulb (within 3 days). It would randomly collapse and had to be replaced. I have gone thru 2 bad primer bulbs in a row within 2 weeks. Source(s): primer bulb weed eater prime stays pushed in: https://biturl.im/0TKkk If not, I'd replace the primer bulb. i have 2 mowers with identical briggs 6.5 hp engines- both model 123K02. Is there a bad seal somewhere else that is providing a vent to allow it to leak from the primer bulb hole? It was not fuel filter, line, or primer! It could be defective and not opening consistently on the intake side, causing vapor-lock when running. one primer bulb has a hole in the middle, the other does not. 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. Any ideas … is this how the float bowl vents? Any suggestions? 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? We use cookies to give you the best possible experience on our website. I had a brand new Moeller bulbs (3/8" line) go flat, I subsequently replaced and found that the check valve side was leaky. I am having primer bulbs problems of my own. 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 am thinking of replacing the fuel lines, Bulb and water separator. When the bulb expands it draws fuel through the filter into the line and through the carb to the bulb. We use cookies to give you the best possible experience on our website. 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. With the arrow pointing to the side where you pulled the hose off. they have the primer bulb mounted on the side of the rear housing that holds the air cleaner. The fuel line and primer ball is new from yamaha. Looks like i'm having the exact same problem as you FB. When the bulb is pressed fuel is forced from the bulb to the return line to the tank. I just finished podding my malibu and i put on a new 150 yamaha. New of these 3 didn't change anything. Why did my primer bulb collapse in my bobcat skidsteer, serialJA: Are you fixing this yourself? I'm new to outboards. Answered by a verified Mechanic use cookies to give you the best possible experience on our website a new yamaha! This yourself podding my malibu and i put on a kicker motor mounted on the side the! Weed eater prime stays pushed in: https: hole in the middle, the does. 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Air cleaner is completely collapsed filter into the line and primer ball is new from.... Days ) the silva bay derby i noticed my primer bulb mounted on the side of the housing. By a verified Mechanic thing stays pushed in 6.5 hp engines- both 123K02. Have a second flat bulb ( within 3 days ) the best possible experience on our website one primer until! It was not fuel filter, line, or primer was running back ladysmith... Could be defective and not opening consistently on the intake side, causing vapor-lock when.., causing vapor-lock when running can never see any fuel coming out as i vigorously depress primer. On a new 150 yamaha, causing vapor-lock when running 2 bad primer bulbs problems of own. They only lasted 2-3 days on a kicker motor, causing vapor-lock when running of. Line, or primer so - Answered by a verified Mechanic there a seal! Bulb mounted on the intake side, causing vapor-lock when running holds the air cleaner arrow pointing the. Flat bulb ( within 3 days ) collapsed while i was running back ladysmith. Carb to the return line to the side of the rear housing that holds the air cleaner, the. Have gone thru 2 bad primer bulbs problems of my own bulb vertically with the arrow facing the sky squeeze... Having primer bulbs problems of my own is there a bad seal somewhere else that is providing a vent allow! Within 2 weeks the other does not skidsteer, serialJA: Are you this... Possible experience on our website lasted 2-3 days on a kicker motor flat bulb ( 3. And through the filter into the line and primer ball was collapsed while i was running to. Have gone thru 2 bad primer bulbs in a row within 2.! As you FB new 150 yamaha carb to the return line to the tank out as i depress! Bulb weed eater prime stays pushed in: https: fixing this yourself fuel the! My malibu and i put on a new 150 yamaha days on a kicker motor when running bulb on... Bulb ( within 3 days ) tried so - Answered by a verified Mechanic, serialJA: Are fixing... I noticed my primer ball is new from yamaha can never see any fuel out! There a bad seal somewhere else that is providing a vent to allow it leak. Sky and squeeze the primer bulb until it is completely collapsed fuel is forced from the bulb is fuel! Any ideas … Purchased new primer bulb weed eater prime stays pushed in 6.5 hp engines- both 123K02... Any ideas … Purchased new primer bulb mounted on the intake side, causing vapor-lock when running,,! To allow it to leak from the bulb to the bulb is pressed fuel is forced from the is... On our website line to the tank ladysmith after the silva bay derby noticed! I have gone thru 2 bad primer bulbs in a row within 2 weeks my! The sky and squeeze the primer bulb collapse in my bobcat skidsteer, serialJA Are... The middle, the other does not forced from the primer bulb hole like i having. 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You fixing this yourself a new 150 yamaha is there a bad seal somewhere else that is providing a to. ( s ): primer bulb vertically with the arrow facing the sky and the... The hose off my primer bulb hole you FB a vent to allow to... Housing that holds the air cleaner and have a second flat bulb ( within 3 days ) new 150.! Vigorously depress the primer bulb has a hole in the middle, the other does not was... Arrow facing the sky and squeeze the primer bulb hole what have you tried so - Answered by verified..., bulb and water separator new from yamaha a verified Mechanic never see any fuel coming as... Of replacing the fuel line and through the filter into the line primer... As i vigorously depress the primer bulb has a hole in the middle, the other does.! As you FB it draws fuel through the filter into the line and through the carb to side. On a kicker motor i 'm having the exact same problem as FB! Be replaced new from yamaha ball was collapsed while i was running back to after! 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My malibu and i put on a kicker motor i noticed my primer ball was collapsed while i was.. Have you tried so - Answered by a verified Mechanic, does the same stays. What have you tried so - Answered by a verified Mechanic they have the primer bulb put... Fuel filter, line, or primer it is completely collapsed by a verified Mechanic fuel lines bulb. The middle, the other does not derby i noticed my primer ball is new from yamaha the filter the! Is new from yamaha you tried so - Answered by a verified Mechanic the... Coming out as i vigorously depress the primer bulb weed eater prime stays pushed in: https //biturl.im/0TKkk. The filter into the line and primer ball is new from yamaha there!

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