I just bought an 06 24 ft bentley pontoon boat from a friend who had not ran it any this year. The 2017 merc. 115 4 stroke idles great, after slowly taking off and adding throttle the boat accelerates fine up to about 20 gps mph, after more throttle it runs on 2 cylinders and surges. More throttle makes things worse. There does not seem to have a low pressure fuel pump, is one required? Any other ideas?
Thanks for your help.
Thanks for your help.