SOURCE: high pressure won't return when triggered
If you unplug the tip, will it work? If so, unloader valve is sticking.
SOURCE: Motor does not shut off when trigger on wand is released
When the trigger is released, pressure builds up and this acts on a valve (spill valve or pressure control valve). When this pressure is big enough it will push the spill valve out and closes a micro switch. Now this Spill Valve gets stuck sometimes, mainly due to soap and chemicals...so the micro switch is not closed...so the machine contiues running. If this is left likee this it will cause damage to the valves. So all one has to do is service the spill valve or as I usually do I replace it. There are cases were the micro switch is damaged also..and needs to be replaced. To see the spill valve and micro switch you must open the cover. The spill valve is located where you see a cover with an electric wire coming out of it. If the micro switch is good...you must tackle the Spill valve.
Regards,
fulltech.
Testimonial: "Makes sense!"
SOURCE: engine runs great, when i
Make sure thre is no air lock in the system line. So first of all use a clean line to wash off and blow out any dirt in the spray gun.
make sure the engine is having good fuel and power it on to run and warm up . let it run over without any load on it . Now turn the hose on it and power it on slowing, do not stop but keep it running to power spray . The accumulated dirt might come off and make the run smooth after some time.
SOURCE: I have a Honda pressure washer. Trigger must be
The problem with the engine is going to be a cleaning of the carburetor. Remove the carburetor and clean you may need a rebuild kit but try the cleaning first. The problem with trigger being held to start, I have herd this problem before and most people just except the fact that this is what they have to do to start. I would remove the pump and clean the check valves and unloader valve. If you are some what machanically inclined you can handle this, but if your not sure you should take this to the shop.If you need parts or just want to see a parts breakdown of pump and carburetor you can go to jackssmallenginerepair.com and go to parts look up and type in your model #. I hope this helps.
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