pour fuel into clean and empty gear oil bottle and re-install squeeze bottle top.
next attach tubing onto the tip of the bottle and squeeze the bottle allowing fuel to enter the bowls. Carb fuel bowl won't fill. b) Reconnect … If you do not wish to prime the engine, crank the engine for 15 to 20 seconds WITHOUT PUMPING. The inlet is above the fule level in the carb Unless you have a cracked casting there is no way for the bowl to drain downward either. I don't buy the fuel pump check valve problem, these would be the same valves that pump the fuel to the carb when your engine is running, you've made no mention of it starving for fuel. The seat itself seemed to disintegrate after I used carb cleaner on it. 1987 Chevy R10 Truck: new carburetor Holley Avenger. turn on the gas it should fill becuase the float goes down, opening a valve which lets gas in, when the bowl fills, float goes up, closing the valve WR450F_RDR Posted May 6, 2006 Squirt the eyedropper full of gas into the fuel bowl vent and repeat this procedure at least 10 times per fuel bowl, for a total of 70 milliliters with a 7 ml eyedropper. The carb bowl is bone dry. The amount will vary by carburetor and engine, but 70 ml should be enough for most carbs. Identify the carburetor's fuel bowl vents; the fuel bowl vents serve as a sort of "chimney" for the bowls, preventing damage due to pressure or vacuum. So after sitting for four years I finally Made it back home to fix the recon.
Now when I try to start it nothing. As Bob says, it doesn't hold much so they go dry pretty quickly. Installed a brew angle sensor, cleaned the carb out, and installed a new petcock. An electric pump is no longer a crutch or a band-aid solution but rather a necessary part of making an old car live happily in today's world with modern fuels. An OEM carb can not drain back down the fuel line. That is the way it is supposed to work, the plunger only needs a little bit pushed up to shut off the gas. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Step 1: Fill the carburetor’s fuel bowls with fuel. The bowl vent(s) will be the hollow, vertical tube(s) coming out of the top center of the carb or on either side of its air inlets. I have a Briggs and stratton float-type carb. The secondary fuel bowl fills up just fine. • Locate the carburetor bowl. It's a cylindrically shaped device with one or two bolts on the bottom (shown). If you have this problem, try priming the carburetor by using an eyedropper and filling the carburetor bowl through the bowl vent prior to cranking the engine. It wasn't getting fuel into the bowl, so I discoverd that there was crud in the fuel line, which clogged the orifice in the seat of the float-needle-valve. This procedure will help prevent any back fires. When I pulled off the fuel line that goes to the primary fuel bowl and slightly place my finger over the hose hole there is no fuel coming out but once I remove my finger it barley comes out. There are no downward passages, all the fuel has to go up before it can go down. locate primary and or secondary fuel bowl vent tubes. When the Bowl is low on fuel the FLOAT DROPS down and the Plunger Also drops and lets gas into the Bowl as it fills up the FLOAT starts to rise and pushs the Plunger up to shut the fuel from coming in and not overfilling the bowl and flooding out of your carb.