Pressure washer problems

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Old 02-16-09, 03:37 PM
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Pressure washer problems

I have a craftsman pressure washer with a problem. It is about five years old,model 580 768310, with a 6.25 HP Tecumsh engine. My problem just started, motor runs fine,but when I pull the trigger to activate the high pressure the engine does not rev up. I can mess with the linkage on the carb and it will rev and maintain until I release the trigger then the motor drops back to idle. I repeated this cycle
numerous times but could not get the unit to operate as it had
previously. I ran the Washer for about 2 hrs, everything else worked fine but his problem never got better.
 
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Old 02-16-09, 09:08 PM
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I'd say the unloader valve in the pump is probably sticking. You'll have to take it out, clean and lube it, and reassemble.
 
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