iboats - The #1 Store For Everything Boating
 
  #1  
Old October 9th, 2006, 09:41 PM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Yamaha 1986 50 HP Electric Start / Power Trim

Batteries are charged all the way. Turn the key in neutral and nothing, no electric choke, no cranking. Jump the starter and she runs fine . Power tilt not working now either. I accidently jumped the positive to the negative while trying to jump her when the batteries were depleted ( before charging them overnight) . Did I fry my solonoid? Is there a way to test it? Are there any fuses I may have blown? Appreciate your replies, Thanks.
Reply With Quote
  #2  
Old October 10th, 2006, 08:51 AM
Ray Neudecker Ray Neudecker is offline
Lieutenant Commander
 
Join Date: May 2004
Location: Jackson,TN.
Posts: 1,657
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

There is a main power fuse. 30amp best I can remember in an inline fuse holder.
Reply With Quote
  #3  
Old October 10th, 2006, 08:59 AM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Under the cowling? I'll look for it today when I get home from work. Is that the solonoid under the harness multi pin connector? Thanks Ray.
Reply With Quote
  #4  
Old October 10th, 2006, 08:11 PM
Ray Neudecker Ray Neudecker is offline
Lieutenant Commander
 
Join Date: May 2004
Location: Jackson,TN.
Posts: 1,657
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Yes under the cowl. It will be close to the starter solenoid Where the main postive lead from the battery attaches. That's the red one LOL.
Reply With Quote
  #5  
Old October 11th, 2006, 10:54 PM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Working to late to take a look. Seemed like a dumb question but when I looked at the parts diagram it called the solonoid a relay., and showed another solonoid by the trim unit. LOL. Thanks,appreciate your reply. I saw no inline fuse . Is it under the plastic covering the elctronics?
Reply With Quote
  #6  
Old October 14th, 2006, 05:03 PM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Ray Neudecker, Thanks for the advise. I found the fuse and replaced it. Everything is working and I'm a happy camper. Thanks You Again. w2much
Reply With Quote
  #7  
Old October 15th, 2006, 11:53 AM
Silvertip Silvertip is offline
Supreme Mariner
 
Join Date: Sep 2003
Location: Midwest
Posts: 15,212
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

If you reversed polarity on the battery you might want to check the charging system. Doing what you did often fries the rectifier/regulator. In fact it may be the reason the battery went flat in the first place.
Reply With Quote
  #8  
Old October 15th, 2006, 12:33 PM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Is there an easy way to check the rectifier.? Next time I go out I intend to bring another battery to start the engine when I.m done fishing. I may well have a charging problem. I have two new batteries but was thinking my new Rule aerator pump used up a whole lot more juice and that is what drained my batteries last time. Thanks for your input,w2much
Reply With Quote
  #9  
Old October 15th, 2006, 04:32 PM
Silvertip Silvertip is offline
Supreme Mariner
 
Join Date: Sep 2003
Location: Midwest
Posts: 15,212
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

If your boat has a voltmeter on the dash it should read about 12.6V at idle and jump up to 14.5 volts give or take a little at anything above 2000 RPM. If it stays at 12.6V or less regardless of RPM, the battery is not being charged. If you don't have a voltmeter, you can buy one at Sears, Radio Shack or any Home Improvement Store for $10 or so. Measure the voltage at the battery with the engine off. It should read around 12.6V. Start the engine and rev it to 2000 RPM. If the voltage does not rise to 14 - 14.5 volts the charging system is not working. Your aerator pump should only draw a couple of amps and would run the battery for days.
Reply With Quote
  #10  
Old October 15th, 2006, 10:53 PM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Silvertip, Thank You. Have run out of time this weekend so I'll try to do it next weekend. Thank You for your advice. I have a voltmeter.
Reply With Quote
  #11  
Old October 16th, 2006, 10:04 PM
w2much w2much is offline
Petty Officer 1st Class
 
Join Date: Jun 2005
Location: Vista , CA.
Posts: 339
Default Re: Yamaha 1986 50 HP Electric Start / Power Trim

Got home from work with light in the sky, nice. Engine started right up. 12.6 volts or so at idle, reached 14 plus a little at about 2800 to 3000 rpm. At 2000 rpm it was at 12.6. Is this a fair charge rate? Thanks,w2much
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
1986 15hp johnson - rope start to electric start? epoxy_nc Johnson & Evinrude Outboards 4 February 27th, 2007 10:01 PM
1986 evinrude 25 hp electric start nicknick Johnson & Evinrude Outboards 8 September 4th, 2006 07:43 PM
1992 C115 Yamaha Power Trim Click & Lost Power to Key switch/trim LA3 Yamaha & Suzuki Outboards 2 July 4th, 2006 06:18 AM
Yamaha 25hp Electric Start Tomxx7 Non-Repair Outboard Discussions 1 May 28th, 2005 12:01 PM
2000 25 hp electric start looses power pauly-wog-3 Johnson & Evinrude Outboards 1 July 13th, 2003 07:12 AM

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 04:14 AM.