iboats - The #1 Store For Everything Boating
 
  #1  
Old May 14th, 2006, 09:26 AM
igglesjo igglesjo is offline
Cadet
 
Join Date: May 2006
Location: Delaware
Posts: 1
Default 1995 Evinrude 70HP Power Loss

I have a 1995 70 Hp motor. I have never had a problem with the motor until very recently. the motor starts immediately, idles good and runs at low speed well. I moved the throttle to full power yesterday, and the boat RPM went up somewhat but not as high as it should have, and the boat was not moving fast at all. I took the motor out of gear, and revved it up in Neutral and the motor seemed to rev up just fine. The water flow is fine out of the port. When I put the boat up for the winter last year, I had the water pump changed and the lower unit serviced. The first time out with the boat everything seemed fine. two weeks later, I can not get full power. anyone know what this sounds like?
Reply With Quote
  #2  
Old May 14th, 2006, 10:23 AM
angus63's Avatar
angus63 angus63 is offline
Lieutenant Commander
 
Join Date: May 2002
Location: Long Island,NY
Posts: 1,968
Default Re: 1995 Evinrude 70HP Power Loss

Welcome!!!!Revving in neutral tells nothing about the health of your motor. That being said.....1) Fuel-- Try a fresh tank if fuel is over a month old. Check for leaks or fuel bulb collapsing.2) Spark--- Verify plugs are firing every stroke with a bright spark 3) Compression --- appx 100 psi and within 10% of each other.I would guess fuel condition first. If not, check the others and post your results.Good luck
__________________
USMMA Kings Point
Reply With Quote
  #3  
Old May 14th, 2006, 12:22 PM
rickdb1boat's Avatar
rickdb1boat rickdb1boat is offline
Supreme Mariner
 
Join Date: Jan 2002
Location: St. Louis, Mo
Posts: 10,796
Default Re: 1995 Evinrude 70HP Power Loss

Might try running on a separate 6 gallon tank with fresh fuel/oil mix with new fittings and bulb and see if that does it. Sounds like you may have picked up some water in the fuel...
__________________
Rick

"Boating is Life...All the rest is just Details"
Reply With Quote
  #4  
Old May 14th, 2006, 12:40 PM
DJ DJ is offline
Moderator
 
Join Date: Dec 2001
Location: PHX, AZ
Posts: 17,342
Default Re: 1995 Evinrude 70HP Power Loss

You're not running on all three. Either spark or a fueled carburetor.
Reply With Quote
  #5  
Old May 14th, 2006, 04:19 PM
jtexas's Avatar
jtexas jtexas is offline
Fleet Admiral
 
Join Date: Oct 2003
Location: DFW metroplex
Posts: 7,673
Default Re: 1995 Evinrude 70HP Power Loss

DJ means "fouled carb"
__________________
"It's all about the tools." -- myself

"Poets talk about 'spots of time,' but it is really fishermen who experience eternity compressed into a moment. No one can tell what a spot of time is until suddenly the whole world is a fish and the fish is gone. I shall remember that son of a b**** forever." -- N. Maclean
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1977 70hp power loss evinrude clayvogt6358 Johnson & Evinrude Outboards 2 April 24th, 2006 06:34 AM
1977 70hp power loss evinrude clayvogt6358 Other Outboard Brands 1 April 24th, 2006 06:17 AM
93 70hp force power and rpm loss gsxr11 Force & Chrysler Outboards 16 March 26th, 2004 01:34 PM
1995 Johnson 150 power loss PeteS Johnson & Evinrude Outboards 4 May 2nd, 2003 07:41 PM
1995 Evinrude 150HP Ocean Pro loss of power popov Johnson & Evinrude Outboards 5 July 16th, 2002 12:37 PM

iboats Forum Directory
Over 100,000 forum posts organized by topic
Outboard Motor Topics
Mercury Outboards
Johnson Outboards
Evinrude Outboards
Force Outboards
Yamaha Outboards
Mariner Outboards
Suzuki Outboards
Honda Outboards
Chrysler Outboards
Tohatsu Outboards
Nissan Outboards
Outboard Motors: non-repair
Vintage Outboards

I/O and Inboard Topics
MerCruiser
OMC I/O, Inboard
Volvo Penta

Propeller Help
Boat Propellers

Boat Repair and Products
Boat Building and Repair
Fiberglass Boat Repair
Marine Electronics
Boat Trailers and Towing
Boat Names
Boat Covers
Boat Parts

Boating Activities Talk
Boating Topics and Questions
Boating Activities and Destinations
Boating Blunders
Boat Shows
Wakeboarding
Water Skiing

Fishing Discussions
Freshwater Fishing
Saltwater Fishing

Boat Type Topics
Aluminum Boats
Bass Boats
Bowrider Boats
Center Console Boats
Cruiser Boats
Cuddy Cabin Boats
Deckboats
Fishing Boats
Fish and Ski Boats
Houseboats
Jet Boats
Jon Boats
Pontoon Boats
Powerboats
PWC Forum
Ski Boats
New Boats
Used Boats

Boat Manufacturers
Boats 250+ Manufacturers
Bayliner Boats
Sea Ray Boats
Zodiac Boats



Outboards

Power Heads

Lower Units

Propellers

Inflatable Boats

Boat Manuals

Engine Parts

All times are GMT -4. The time now is 12:19 AM.