What's the small mistake if I may inquire?
I have a 1989 Yamaha 15hp that my Dad gave me for my son. Little did he realize that running fresh water through it did nothing if it never got hot enough to open the thermostat. So after sitting for using it for 10 and it sitting for 10 years it cranked the first pull but was so full of salt deposits I could not get it to run cool without pulling it apart and cleaning it up. I need a good machine shop and or welder in the New Port Richey area to fix a "small" mistake.