Kawasaki 20 hp surging problem
12 years ago
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Comments (6)
- 12 years ago
- 12 years ago
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Kawasaki 12.5 hp won't start after changing crankcase cvr gasket
Comments (10)I was out of town a couple of days and haven't been able to respond. Thanks for your response. I tried to be very careful not to turn or move anything. I did not check the timing marks when I put the cover back on, I only focused on getting the plastic governor gear meshed properly. I don't even know where the timing marks are. Considering that it won't even try to start, gets a good spark, and after pulling the cord numerous times gas will be visible in the carb cover around the choke plate, along with an occasional backfire, it does sound like the timing is off. Do you have any advice on setting the timing or maybe a website that might help? Obviously, I'm not an expert mechanic and hate to remove the engine again, but it looks like that's where I'm headed. Thanks again....See More20hp yard machine surging, runs fine with gov pulled
Comments (6)With the engine idling, The throttle plate is just about closed and most of the fuel is delivered through the carburetor idle circuit. At high speed the throttle plate has opened only slightly and some fuel is still delivered through the idle circuit. Some fuel is starting to be delivered through the main fuel circuit. When a load is delivered, the governor further opens the throttle plate to maintain rpm. In this position, most of the fuel is now coming from the main circuit. The surging occurs when the idle circuit is not able to deliver enought fuel. The engine wants to die - but the governer senses the rpm drop and opens the throttle plate - receiving additional fuel from the main circuit. The engine speeds up and then the governor closes the throttle plate. If your carburetor is equipped with a Idle adjustment screw, open it about 1/8 of a turn and see what happens. If there is no idle adjustment screw, the internal idle passages are partially blocked with fuel varnish or perhaps dirt. Sometimes it is hard to clean this with carburetor spray cleaner unless the carburetor is disassembled. As previously suggested - changing the fuel filter - if equipped - may help in preventing recurrance. Be careful with old fuel hoses as some rubber may crumlble on the inside of the line and enter your carburetor....See MoreJohn Deere 245 Won't Start (Kawasaki 14hp)
Comments (25)lawnboy1022 It sounds like it may have jumped time. To check you can use an ohms meter and have some one attempt to turn flywheel very slow while connecting one lead to spark plug wire end the other to ground. Turn flywheel watching when the contact on flywheel comes to position with coil you should see meter move? Also pulling engine cover look close at key that aliens flywheel if it appears it spun even a little that should be the problem!...See MoreJD 445 Kawasaki FI engine surging
Comments (15)It will be the hose leading FROM the tank TO the fuel injector body. If the hose in question does in fact have leakage inside the fuel tank, there will be no pressure in the hose. You need to find a diagram describing which hose is connected to the pump, or you "might" be able to shine a flashlight into the tank to see the pump and hose for positive ID. The pressure is supposed to be "held" in the line by the fuel pressure regulator valve. The "pressure regulator valve" is situated in the "return to tank" circuit of the fuel system piping. The pressure regulator maintains a "head of fuel pressure" in the side of the fuel plumbing where the injector(s) are. This pressure is what "shoots fuel" out the injector nozzle during injection. If the pressure hose leaks right back into the tank from the line on the pump, you have lost both pressure at the injector, and volume of fuel as well. The symptoms could even mimic a clogged fuel filter or a pressure regulator valve that is stuck open, or has a defective "pressure spring". It is always a good idea to wear safety "goggles" of face shield whenever you work on fuel systems. Even if you don't get sprayed, a splash in the eye is painful and/or harmful. And No Smoking, please....See More- 12 years ago
- 12 years ago
- 12 years ago
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