replying to Lee, Jess Pettit wrote:
I realize this post is 12 years old. I have this pressure washer and it has
been great. Mine came pre-assembled (incorrectly BTW). These type bolts
typically are used to fasten the pressure pump to the crankcase of the Honda
GC190 engine and a total of 4 are required. I have complete service, routine
maintenance and owner's manuals for the pump and engine. If you ever have
other questions regarding recommended maintenance or want to sell the unit,
let me know.

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