FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
Hi everyone I am new to this forum this is my first post hope someone can help
my 90hp mariner year 1985 straight six is playing up. first off I only had spark on 1,3,5, cylinders this seems to be ok now that I changed a switch box.
Now and before the switch box was changed the engine is very...
