I have a little wonder leaf blower with a Briggs and Stratton engine. model 254422 type 1526 01 code 9505221b Question is what type of oil should I use and more importantly how much does it take. I changed the oil over the weekend and used 10w40 that I had in my garage, judging by what came out of it and the dipstick I put 2 quarts in it. It looked fine on the dipstick but when I ran it there is smoke coming from the muffler and rechecked the dipstick and it is diffentally over filled. Thanks for your help

I have a Craftsman 2600PSI/2.3GPM pressure washer with a Honda easy start motor. relatively little use but has always run great, started on the first pull etc. Used it last week for hours and no problem. pulled it out today and it won't build pressure. eventually the motor starts running rough and stalls. read somewhere that I should run it without the nozzle to see if the engine improves; it did and seemed to run better. but still no pressure. I changed the nozzle to a brand new one that I had and no change so it does not seem to be that. next I saw lot's of suggestions about the unloader valve sticking. pilled it out and disassembled. seems to move freely and everything's in good shape. I'm not able to depress the tip when it's all assembled. but again it moves freely when taken apart. photo attached. its not the type with the small needle tip. Also, not sure why but there's no screen/trap in the water inlet. so something may have got in there. any thoughts? I did try to do some homework before posting but to no avail. thx as always.