Reply To: Evinrude 10 HP 1957 Model 10014

[Bob Wight]

My 10hp Johnsons both run real good with about 80-83psi. If your motor sat idle for a long time, it might just be stuck rings. You might try to get it running with fresh fuel, oil and some BRP Engine Tuner and see if compression doesn’t come up a bit more. You can also pull the bypass covers off and push in on the piston rings to see if they have any spring or bounce to them. If not, then they are stuck.

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."