Originally Posted by lost_odeassy

Thank you for the feedback, it does have good compression, I Am bit concerned as side of pistion is turning some what grey.

Can you also advise what is recommended way of cleaning engine form inside, once I used Loozen which is some what like WD 40 it may have removed some of the coating off it?

Do I just use water and laundry detergent to clean it with water then use air to clean and install back using after run oil? Thanks