I have a troy bilt 2550 pressure washer that won't start. New gas, new plug, new magneto, fuel line is good, getting a spark, compression is good, Carburetor has been cleaned out, but I noticed when I pull the cord air is being forced out the carburetor. So I removed the head that and noticed the intake valve is opening when the piston is coming up. I thought it was the intake opens when the piston goes down to draw the fuel in? The flywheel key is good, so what am I missing here?
SOURCE: I have a pressure washer at work that has good
Here is the long answer with everything we learned while using a power washer twice a day for years:: It covers the things you already tested, but doesn't hurt to repeat. Your problem is actually #8 on list below.
It sounds like could be one of the problems listed below or a combination of those things.
1) The exhaust is partially blocked. Check the screen covering exhaust port for carbon and dirt build-up. High-speed exhaust air must pass freely. We finally broke the exhaust screen out with a screwdriver to get our machine going one day.
2) Gas is not flowing freely to carburetor > under gas tank, find the rubber hose connected to carburetor. Pull off rubber hose and make sure gas flows freely. You can use this hose to drain gas tank of old gas ... and then put in fresh gas.
3) Carburetor is partially gummed up and engine cuts off when gas flow slows down. Buy some gum out, and then don't store power washer with gasoline in the tank. Or put additive in gas when storing machine.
4) The choke is letting in too much gas or not enough gas. Try different adjustments. The choke-lever on our power washer got so bad that we could not set throttle at full open or machine would die. We still use machine at 2/3 throttle, and then start each time using WD-40 as described below.
5) Dirty air filter that won't let engine breath enough air to keep up with combustion. Take off air filter and see if problem persists.
6) The spark coil is going bad?? Change spark plug to see if problem persists. Is spark plug wire pushed all the way onto the spark plug?
Now the nitty gritty
7) Take off air filter. Spray WD-40 directly into carburetor. Yes, we use WD-40 every time to start my power washer, and we use the washer twice a week.
Spray in the WD-40, Pull the engine cord. The engine will fire on WD-40. Guaranteed.
Once it starts, keep spraying WD-40 directly into carburetor to keep engine going.
If engine will not fire on WD-40, then your spark is suspect.
If your engine fires and runs on WD-40 but dies without it, then your gas supply or carburetor are suspect
8) Carburetor problem >>> try Gum out >>> and then take machine to small engine repair shop
9) Spark ... take out spark plug. Put spark wire back on. Hold spark plug by spark wire. Touch metal threads of spark plug to metal opening where plug came out. Metal to metal. Pull back start cord and look for spark between the metal.
If you have no spark, then spark coil is bad >>> take machine to small engine repair shop
SOURCE: My Honda pressure washer can't get gas and
check and make sure there is not a fuel shut off valve on your carb. it is located next to the choke lever, make sure that is turned on.
SOURCE: I have a Troy-Bilt pressure washer #020344. When
There is a check ball and spring within the soap dispenser that may be worn or lost. Easy fix however. If the parts are there and installed correctly, seat may be worn. If parts are missing or valve worn out, just plug the valve and purchase an aftermarket dispenser to install in the line between the pump and hose (not expensive and ez to do. )
good luck
SOURCE: Honda 8hp motor only starts with quick-start fluid
if you have gas to carb rebuild carb or relace
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