Vacuum Fuel Pump Issues with Oversize Piston - Physics Forums
2016年5月24日 · Some signs of a malfunctioning vacuum fuel pump include difficulty starting the engine, engine stalling, and loss of power while driving. You may also hear a clicking or whining noise coming from the pump. What are the common causes of vacuum fuel pump problems? The most common cause of vacuum fuel pump problems is a clogged or dirty fuel filter.
vacuum fuel pumps - Polaris ATV Forum
2015年6月7日 · I replaced the little white fuel filter with a clear one and noticed after it runs and dies after about 20 minutes, the filter is empty. If I pull the line to the carb off, vacuum is restored. I plug the line back in and it'll run fine for another 20 minutes or so. The vacuum line seems to be delivering plenty of vacuum to the pump.
Vacuum mechanical fuel pump - Polaris ATV Forum
2020年3月10日 · My fuel tank was completely full so the fuel level is way above the carburetor and air box that is why fuel was flowing to a lower level then its real level in the tank. I didn't knew about the shut off valve but when i disconnected the hose going out of the pump - in to the carburetor, gas keep flowing through this house even when the engine ...
2014 sportsman 400 HO no power to fuel pump - Polaris ATV Forum
2024年2月3日 · If the fuel pump is new, it needs to be primed by exhaling into the fuel tank to pressurize the tank - with the tank full, fuel will flow through the pump 24/7 - the pump is only needed when the tank gets low on fuel (half tank is low) and with a partial tank of fuel on steep (over 30 degrees) hills.
Conversion to Electric Fuel Pump | Polaris ATV Forum
2023年7月2日 · The vacuum is take from the carb, not the engine, but you may install an electric fuel pump as long as it does not exceed 6 psi output pressure Shop Owner and Mechanic with over 50 years experience Reactions: Grego Garcia
Does the fuel pump actually "pump"? - Polaris ATV Forum
2011年4月22日 · The pump itself may have gunk in it too. In other words, I'd clean the entire fuel delivery system and check for collapsed or kinked hoses and for pin holes in the diaphragm while doing it. Also make sure the vacuum line and intake boot that works the pump is sealed tight.
Scrambler 500 fuel pump - Polaris ATV Forum
2013年11月1日 · One hose is connected to the vacuum side of the carb, the other to the fuel bowl. Check the hoses on the pump, you could have a split in one. which would stop a vacuum process going to the pump. if you disconnect the hoses from the carb you can blow/suck on the vacuum side and gas should pump out the other hose. you should be able to hear the ...
Is there a difference between a car fuel pump and a water pump
2012年4月13日 · A fuel pump delivers fuel to the engine, while a water pump circulates coolant to keep the engine from overheating. Can a water pump be used as a substitute for a car fuel pump? No, a water pump cannot be used as a substitute for a car fuel pump. They are designed for different purposes and have different mechanisms for operation. Are there any ...
Classic symptoms of Fuel Pump Failure - Polaris ATV Forum
2017年6月22日 · These pumps an oddity. My polaris pump would quit when hot and run fine when cold. Took it to the dealer under warranty and always read 58 psi. I installed a quantum and rode it for 6000 miles with that pump. One day it just died and would not start. Pump seized to a stop. If you can test it while it is happening is best. www.highflowfuel.com
Engin runs but dies with throttle. - Polaris ATV Forum
2018年7月23日 · Only going by my experience with the 325 machines and my 600. If you have a carb, then there should be a vacuum fuel pump under the left front fender. In my experience the vacuum line that operates the pump goes to the nipple on the right front of the carb. There is one for the fuel inlet and the two at the rear are both vents.