Have a troy built pressure washer and the gas is leaking out help

Troy Bilt 2550 PSI Operator Manual

There is no need to prime. But you do need to use the black spray nozzle to get soap to siphon out.
if that doesn't solve the problem let me know

Could also be crack/leak in HP pump. If it were left in cold weather without antifreeze, I'd check there first. Part + labor might warrant new washer if more than a couple years old.
Sorry.

Your washer was sitting for a while I suspect. Check the carb and make sure it is tight to the engine. If it is then you will need to take the carb off, careful not to tear any gaskets. Then remove the fuel bowl and clean out all ports. Make sure to clean out the jet as well as I suspect the fuel is clogged in the carb and overfilling. Your needle valve is stuck open and then flooding your carb and spilling out the side of your engine. Make sure your needle valve and float can move freely before reassembling. Good luck

I have found t vinegar has many uses. Mix the water with vinegar

Call us when you can be at the washer so we can trouble shoot it with you over the phone.
http://www.ppe-pressure-washer-parts.com/troy-bilt-020416-1-pressure-washer-parts

Try this link. I think you'll find what you're looking for.
http://www.troybilt-gen-pw.com/owners_manual/

make sure you hold trigger in to relive pressure when trying to start

try banging lightly on carberator with block of wood or something to free up float and valve!!!!

What fluid and how much is required in the Troy-Bilt 2550 power washer pump?