It may be counter-intuitive but restricting the fuel too much can cause the piston and head to run hotter than if there is too much fuel. Andy Thanks for the suggestions guys. It's just a rubber membrane that flutters with air coming through the back from the crankcase. Ive started 4cly that would only run on two. Lesson learned: always use freshly mixed fuel. If necessary, consider removing the powerhead and lowering the engine cover.
Many carburetors are fitted with a drain plug that can be removed to allow all the fuel to run out. First, go to the eBay website, locate the Search box, and then type in your search terms. If I prime the bulb and start the motor and it runs for 20 to 30 seconds and then stalls, could that really have anything to do with the fuel pump? May not work but will only take a minute to try. While many of your lawn equipment tools may look very different, the engines inside them are actually quite similar. Plugged bowl vent or overflow. Diagnosis: A compression lower than 70 psi is indicative of some pretty serious problems.
Either stopped up carbs, weak or bad fuel pump, low or no compression on cylinder supplying pulse to fuel pump, a bad squeeze bulb, tank not venting, stuck anti-syphon valve on tank, loose fuel line connections, etc. It simply holds the throttle open slightly. After all are touching, start tightening them incrementally. Purchasing Outboard Motor Products and Accessories on eBay Searching for outboard motors on eBay is easy and straightforward. If you have a two-stroke outboard motor, you must add oil to the fuel to lubricate the engine. Take this with a grain of salt: I think that part of the problem is that 95% of the time you start the outboard it's cold and you have learned to start the thing a certain way.
Incorrect spark plug for the kind of service. Spray starter fluid into the carburetor. When the oil tank is low, you have roughly 30 to 45 minutes running time before being empty. Diagnosing the Fuel System The fuel system comprises the fuel tank, fuel lines and carburetor. Then use a wrench with a long handle to slowly turn the engine over. Performing the scheduled maintenance is very important. Enrichener valve not seated or leaking.
Mercury , based in Wisconsin, has been making Mercury outboard motors in two- and four-stroke versions ranging from 2. I am moving on to my next several attempts at a fix. I made 2 mistakes as follows: Mistake 1: Without realizing what I was doing I added approximately 1 quart of pure gasoline no ethanol to approximately a 1 gallon mixture of 2-cycle oil and pure gas at 50:1 ratio. There is about an inch of air in the oil hose, and I want to make sure that goes away before relying solely on the oil injection system to provide oil. This story originally appeared on.
Production model years 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007. Your Mercury 2-Stroke Outboard Boat Motor service manual will come to you in pdf format and is compressed for a lightning fast download! For chainsaws and line trimmers, the cutting components won't operate at low engine speeds. My Nissan 5hp 2-stroke starts on the first or second pull after sitting on the dock for a week. If you're replacing your old carburetor, you will need to transfer them from the old carburetor to the new one. The whys and wherefore of fuel quality.
I would check everything in a logical order, and I would make certain there are no air leaks anywhere in the crankcase. Try running the engine again after it has cooled down. If you are kicking or pulling your 2 stroke motor over repeatedly, please stop. Initially I pumped the gass ball and it was all fixed. Intermittent short circuit due to damaged wire insulation. As was said, you may have a fuel pump issue. Two repair shops told him he almost certainly needed a new metering diaphragm in his carburetor.
Andy If it ingested water while running I hope you drained and flushed it asap. This isn't a hot 4 stroke we're are talking about here, 2 stroke engines are very easy to start hot or cold, and hard starting is a sign that something is not right in your engine. Restricted breather hose to air cleaner. In the photo below, you see the contents of a standard rebuild kit. Don't really understand how it works just that it seems to, I guess that its something to do with flooding it and this unfloods it.