I have a 1986 Kawasaki Ninja zx-6 with a 600cc 4cyl 4carb motor. The bike sat for about a year before I bought it to fix it up. I removed the carbs and cleaned and inspected the bowls, jets, and needles. They all look like there in good shape. I changed the plugs and checked for spark, have fuel going to the carbs, and have good compression. The bike is on the center stand with the clutch pulled in and I checked that the cut-off switch wasn't set to stop. The bike will turn but will not fire. I gave the carbs a quick shot of gas from a spray bottle and it fired and ran for about 5 seconds and died. It doesn't seem like the carbs are pulling any fuel into the motor. If I cover all the carbs with my arm and "force" vaccuum the carbs pull fuel and the bike runs for like 20 seconds before it dies. I checked the boots for a vaccuum leak but everything seems tight. If anybody has any ideas on what else could be the issue they would be greatly appreciated. Thanks
Theres fuel starvation, the carbs are not getting required fuel in other words the float chambers doesnt get the correct amount of fuel .
Check the fuel flow from the petcock to the carburators.
Check the float pin and adjust accordingly to get the right level inthe float chamber of each carburator.
Hope this helps!
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