NJ Fishing Advertise Here at New Jersey's Number 1 Fishing Website!


Message Board


Mercury 115 4 stroke EFI 2018 - NJFishing.com Your Best Online Source for Fishing Information in New Jersey


Message Board Registration       FAQ

Go Back   NJFishing.com Your Best Online Source for Fishing Information in New Jersey > NJFishing.com Boating
FAQ Members List Calendar

NJFishing.com Boating Use this board to discuss anything related to boats and boating in NJ

Reply
 
Thread Tools Display Modes
  #1  
Old 10-18-2025, 06:26 PM
Quin T Rex Quin T Rex is offline
NJFishing.com Regular
 
Join Date: Oct 2015
Posts: 38
Default Mercury 115 4 stroke EFI 2018

The problem is : the outboard is running 1000 rpms higher than usual but going 10mph slower. It is not the prop . This issue just started two trips ago. Thought it was a spun hub on the prop, Wrong swapped out the prop and the same results today, high rpms and slower speed with a 1.5 gph drop in fuel efficiency . Any thoughts would be very much appreciated
Reply With Quote
  #2  
Old 10-21-2025, 03:23 PM
Capt. Debbie's Avatar
Capt. Debbie Capt. Debbie is offline
NJFishing.com Old Salt
 
Join Date: Mar 2008
Location: Suffern NY / Sandy Hook
Posts: 2,656
Default Re: Mercury 115 4 stroke EFI 2018

How clean is the bottom of the boat? And lower unit?



Quote:
Originally Posted by Quin T Rex View Post
The problem is : the outboard is running 1000 rpms higher than usual but going 10mph slower. It is not the prop . This issue just started two trips ago. Thought it was a spun hub on the prop, Wrong swapped out the prop and the same results today, high rpms and slower speed with a 1.5 gph drop in fuel efficiency . Any thoughts would be very much appreciated
__________________
Capt. Debs
Tow boat captain/salvor
50 ton USCG Master
NJ Boating College- Lead Instructor
Big time hottie crabber
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:28 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.