Go Back  The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Reload this Page >

Yamaha 50 Trim Relay OR Starter Relay?

Notices
The Boating Forum

Yamaha 50 Trim Relay OR Starter Relay?

Old 02-09-2020, 10:45 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Feb 2020
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default Yamaha 50 Trim Relay OR Starter Relay?

I have a 2000 50HP 2 stroke, never any problems till today. Went to start it and cranked a few times but would not fire up and run. Sounded like the battery was going dead, trimmed motor down all the way, cranked it a few more times and then just click, click, click...starter not engaging then tried to trim up and no trim either. So put a rapid charger on the battery thinking it was dead, and still the same problem. Ran to store and got a new battery, replaced it, still same problem with good battery.

So I found the one click noise when I try to start it, I assume its a starter relay, big round part on left of motor just below the trim relay. Red wire comes from back of engine area to it and then another red wire goes from it up to the starter I get voltage going TO it from the back side of the motor but NO voltage going TO the starter. I took jumper cables and direct jumped starter to make sure it was engaging and it did. This seemed like problem #1. (I did check the one fuse in the motor area and it was fine)

Problem #2 I get NO trim up or down just a slight click at times and I think I hear it coming from the trim relay. Should I be able to operate my TRIM if my starter relay is bad? The red wire on the trim relay does get voltage with the meter test. Are the trim and starter relay some how connected?

What should do next? Replace trim relay or is there a way I can test it and see if it operates? I'd rather not just start buying parts to trouble shoot and spend more $ that is not needed to be spent, already have a new battery! Trim motor should be fine I have replaced that before. Seems to be something electrical in the engine as I get some clicking when trying to start and trim but that is it. Thanks for any leads on what to do next.
Old 02-10-2020, 02:12 AM
  #2  
Senior MemberCaptains Club Member
 
Join Date: May 2002
Location: Ayaz Beach
Posts: 1,254
Received 298 Likes on 174 Posts
Default

Sounds like you have a corroded battery cable.
Check and clean your connections starting with the main cables and work your way down.
Old 02-10-2020, 02:43 AM
  #3  
Admirals Club Admiral's Club Member
 
Join Date: Apr 2012
Location: Port Fierce, FL
Posts: 861
Received 74 Likes on 44 Posts
Default

Originally Posted by PeteH View Post
Sounds like you have a corroded battery cable.
Check and clean your connections starting with the main cables and work your way down.
sounds like you have a corroded GROUND (negative) connection. Disconnect, clean and reconnect all battery cable connections on both leads.
Old 02-10-2020, 08:16 AM
  #4  
Junior Member
Thread Starter
 
Join Date: Feb 2020
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Did that one of the first and easiest steps to do. Not the problem. Is there any where I can find the electrical schematic to start tracking things down?
Old 02-10-2020, 09:24 AM
  #5  
Senior Member
 
Join Date: Dec 2014
Location: Land down under
Posts: 12,129
Received 2,323 Likes on 1,366 Posts
Default

Originally Posted by GeckoPhoto View Post
Did that one of the first and easiest steps to do. Not the problem. Is there any where I can find the electrical schematic to start tracking things down?
In the applicable service manual.

How can you be trouble shooting without the trouble shooting bible?
Old 03-07-2020, 09:14 AM
  #6  
Junior Member
Thread Starter
 
Join Date: Feb 2020
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Fixed, yes it was corroded battery cables, cut 4” off and wire still black inside, cleaned with wire wheel put on new terminal connector and it worked fine. Will be buying new cable to replace 20 year old cable next. Thanks for input, was enough to get meter reading at motor but not enough to carry load to trim/starter. Boating tomorrow 👍

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 On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.