I have a 8-9 year old pressure washer with a Kohler XT-7 (173cc IIRC) engine that is having trouble running at sustained load. It just started doing this last time I used it, but the problem is consistent.
It will run fine at its normal RPM (no load), but when you hold down the trigger on the wand for more than 7-8 seconds or so, the engine starts stumbling and will quickly die if you keep it held down. If you let the trigger go for a few seconds, you can continue for several seconds and it will run fine until you hold it down too long. If I reduce the RPM the pressure washer will run fine under load for long periods, so I presume this is a fuel starvation issue.
No fuel filter on this unit. Is there anything in the carb worth tinkering with that could cause this issue? Or is it cheaper/easier to just replace the carb and hope for the best?
It will run fine at its normal RPM (no load), but when you hold down the trigger on the wand for more than 7-8 seconds or so, the engine starts stumbling and will quickly die if you keep it held down. If you let the trigger go for a few seconds, you can continue for several seconds and it will run fine until you hold it down too long. If I reduce the RPM the pressure washer will run fine under load for long periods, so I presume this is a fuel starvation issue.
No fuel filter on this unit. Is there anything in the carb worth tinkering with that could cause this issue? Or is it cheaper/easier to just replace the carb and hope for the best?