The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Search

Notices

Random Quote: I feel sorry for those who don't drink, when they wake up it's as good as they will feel all day. Sinatra
Reply
 
Thread Tools Search this Thread
Old 06-14-2012, 06:48 PM
  #1    
Junior Member
 
Join Date: Jan 2011
Posts: 4
Default 2005 225HP Evinrude Ficht-Surges Above 3000 RPM

I repowered with a 225 HP Evinrude Ficht about 6 weeks ago. At low RPM below 3000 all is well,sort of. This motor is on a Chaparral 234 Fisherman. The motor came from a lake in North Texas and had 215 hours when I got it. When I get above 3000 RPM the motor sounds like it wants to speeds up momentarily then slows to 3000 RPM. Also, when the throttle is fully forward this problem is more noticable, but when I ease back on the throttle the motor smooths out but is not at full power. Idle is fine and slow cruising (1500-2000 RPM) is fine. All filters have been changed. The boat shop where I bought this motor set the computer to increase oiling because of the low hours. I pulled all the spark plugs and noticed the lower port spark plug was coated with oil and soot. The computer shows no problems.

Any suggestions are appreciated.
Billwill555 is offline   Reply With Quote
Old 06-15-2012, 04:44 AM
  #2    
Junior Member
 
Join Date: Apr 2011
Location: OZ
Posts: 18
Default

BillWill555,
To start with, a Ficht engine has not got adjustable oiling, apart from initiating a new brake-in cycle.
First test the compression. Cylinder 5-6 (The bottom ones each side) has less compression than the rest. This is done on purpose.
Did you check the indexing when you refitted the plugs? Is the sooty plug dead?
A vacuum gauge and a bit of clear hose on the fuel intake side will show if there is a supply problem. Max 4"HG and no air bubbles. Use only 3/8" fuel lines and primer.
Check the exhaust back pressure fitting to the EMM. It is often clogged.
Last, you need to connect a laptop and test at high speed. A drop test can be done for both spark and injectors and will show up problems easily.
My guess is fuel supply.
Cheers
nordmann is offline   Reply With Quote
 
Old 06-15-2012, 05:05 AM
  #3    
Senior Member
 
Join Date: May 2012
Location: Naples, FL
Posts: 112
Default

When you say surging... does it do more of a pull back then forward? Or jump forward and pull back? I know that's a strange question, but whether its accurate or not, I noticed between my friends boat would pull back then come back to life. His issue was ignition problems. My boat would jump forward then settle back, my issue was vac. Lines/ fuel.
M.A.CCruiser is offline   Reply With Quote
Old 06-15-2012, 05:29 AM
  #4    
Senior MemberCaptains Club Member
 
Join Date: Oct 2003
Location: CT
Posts: 3,504
Default

It is normal for all of the spark plugs to look like they are coated with soot.
Whaler27 is offline   Reply With Quote
Old 06-15-2012, 06:10 AM
  #5    
Admirals Club
 
Join Date: May 2009
Posts: 64
Default surging

Have the vst and the high pressure fuel pump cleaned.typical symptoms.
aerojr is offline   Reply With Quote
Old 06-15-2012, 07:04 AM
  #6    
Senior MemberCaptains Club Member
 
Join Date: Jul 2001
Location: Plantation,Fl
Posts: 1,207
Default

Not that it makes any difference in the problems you're having, but if your 225HP motor is a 2005, I believe it would be an ETec and not a Ficht. I believe 2004 was the last year of 225HP Fichts.
__________________
MIKE F is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0