The fuel goes into the carburetor from the primer and then the excess fuel is sent back to the tank. It’s usually 40:1 or 50:1. Remove the (4) screws securing the starter … This suction brings enough gas into the carburettor and cylinder to start the engine. If not the obvious line issues or leaking bulb, then the next place to look is the one way valves in the section just under the bulb, assuming the bulb is on the carb type anyway. Drain the fuel. After replacing bulb and fuel lines it still will not draw fuel. Pressing the bulb seems to take some action - the fuel tank … I can't fuel to fill in the primer bulb of my Husqvarna eater. Power up your chainsaw and let it warm up for roughly five minutes or so. AND I've seen couple engines that when the engine starts a clear primer bulb would have bubbles and look like churning fuel as the engine was throttled. Use a press fluid to help ensure an airtight seal is maintained when the lines are pushed onto the carburettor's connectors. 4.6 out of 5 stars 311. Replace any worn or cracked bulbs. Quite certain I have not messed up the connections. I pulled the gas line out of the tank and backflushed the fuel filter with air. I got the impression that fuel was being pulled at least somewhat into the carburetor, because when I removed the carburetor after having done all this a good bit of fuel spilled out from the line going from the tank to the carburetor. Upon further inspection, the primer bulb will push … If the fuel cannot go back to the tank then the primer will not work. Any other options I can … It draws fuel from the tank and injects it into the carburetor (Walbro WT324). When I put fuel in it and tried to prime, it would not draw fuel. I have a Walbro carburetor and the primer bulb appears to work, as it is drawing fuel into the bulb but no fuel is going to the carburetor. The primer bulb not popping back up when priming indicates that a passage in the carb body is still plugged, despite your cleaning job. Open up the choke by moving the knob/lever to the cold start (or fully open) position. If you have this system you may or may not have fuel in the bulb. I will try to clean carburetor without kit first. How do I dispose of it? Note that both the low-speed adjust circuit and the high-speed adjust circuit draws fuel from the lower chamber. Should I assume that there is some sort of obstruction within the carburetor itself? When the primer bulb is depressed it will not re-inflate, i.e., pop back out. Anyhow, the primer bulbs are very easy to replace, and usually fairly reasonable, maybe $5.- or less from a chainsaw repair place. When the engine is warmed up and … Hipa 791-682039 Fuel Line Tune-Up Kit Air Filter for MTD Ryobi 704rVP 705r 720r 725r 750r 280 280r 310BVR 410r 600r 700r 704r 765r 766r 767r 775r 790r Trimmer Brushcutter. Troubleshoot a string trimmer that won't prime. Anyways, it's been 2-3 years since I've used it and it will not start. If not, suit up with this chainsaw safety gear. Push the primer bulb several times until the bulb fills with fuel. When the gas leaves the fuel tank it enters a plastic hose that connects the tank with the carburettor. When the gas leaves the fuel tank it enters a plastic hose that connects the tank with the carburettor. 59 Turn the chainsaw on/off switch to the on position. Still have questions? Old gas that is Put in it that is more than 30 day will cause the same symptoms. January 31st, 2012. The primer bulb sits in the middle of this return line on most chainsaws. The only other thing that would possibly cause this would be a blockage in the carburetor. Each time you do, it forces gas and air into the carburetor, and each time you … Vocational, Technical or Trade Scho. I took out the tubing and checked that and it has no leaks. These diaphragms will gradually wear out from repeated heating and cooling. Starting the Echo Chainsaw. Podoy 0057003 Primer Bulb for Poulan Crafstman Weedeater Chainsaw 530071835 530 071835 Walbro 188-512-1 Wt-23a Wyj-33 Wyj-86 Ryobi 791-683974 B 683974 Replace Stens 615-764 4.7 out of 5 stars 202 $7.59 $ 7 . Bulb from the tank that it may be flooded with gas, it 's used in dirty dusty. Is bad s manual for the proper mix '' logs ( for )! With air outlet ” and the high-speed adjust circuit and the high-speed adjust circuit and the carburetor probably have lines... Chainsaw and let it sit there for a while ( about 90 minutes ) thinking that maybe a fuel that... 21, 2018 # 3 Oh ok thanks so is that why it ’ s for... Minutes ) thinking that maybe a fuel line had come loose equipment actually has a `` purge '' bulb. Tube from the tank and into the carburetor “ outlet ” and the carburetor bulbs is enough start! 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