Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Re-power with a lightly used 2013 Yamaha F40?

Posted by max366 on 02/12/18 - 2:19 PM
#2

I'm installing a 2002 F40 on a 1988 13 ft Sport this week. The key issue with these motors (not sure if it applies to a 2013) is the jets easily plug up causing poor performance. I replaced both jets on the carbs with larger ones after I did a extensive ultrasonic cleaning of the carbs. There's a 2 part Youtube video that explains the process in great detail and it's really helpful and correct.

The 3 cylinder 40HP Merc, used on some of the 13 ft Whalers weighs 204 lbs. I did a 1982 13 ft Sport with the 40HP 3 cyl Merc and it ran really well, if that helps.