Reply
 
Thread Tools Search this Thread
 
Old 07 April 2015, 04:57   #1
Member
 
Noble95's Avatar
 
Country: UK - England
Town: Southampton/Poole
Boat name: Black Racketeer
Make: White Shark & Avon
Length: 6m +
Engine: Verado 150
Join Date: Apr 2014
Posts: 180
Battery

Any harm in running an engine that has electric start with out the battery? And just using the pull start? And what's best to do with the cables that are connected to the engine that are meant to go onto battery?!
__________________

__________________
Noble95 is offline   Reply With Quote
Old 07 April 2015, 05:20   #2
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Depends what sort of charging system it's got. What's the motor?
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is online now   Reply With Quote
Old 07 April 2015, 05:21   #3
Member
 
Noble95's Avatar
 
Country: UK - England
Town: Southampton/Poole
Boat name: Black Racketeer
Make: White Shark & Avon
Length: 6m +
Engine: Verado 150
Join Date: Apr 2014
Posts: 180
25hp 2 stroke tohatsu - guess it age around 2000
__________________
Noble95 is offline   Reply With Quote
Old 07 April 2015, 05:58   #4
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Possibly not a good idea. Check with a dealer first as you may mess up the charging system.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is online now   Reply With Quote
Old 09 April 2015, 03:03   #5
Member
 
Country: UK - England
Town: North Lincs
Boat name: Clam Chowder
Make: Humber
Length: 5m +
Engine: 85 Yam
Join Date: May 2010
Posts: 43
I don't think it's a good idea, if you have electronics fitted. The alternator will think the battery requires more voltage and fire about 25 volts into the electronics!
__________________
Boatintercoms is offline   Reply With Quote
Old 09 April 2015, 03:12   #6
Member
 
A1an's Avatar
 
Country: UK - Scotland
Town: Fort William
Make: Humber Destroyer
Length: 5m +
Engine: Yamaha F80
Join Date: Mar 2012
Posts: 2,239
RIBase
Quote:
Originally Posted by Boatintercoms View Post
I don't think it's a good idea, if you have electronics fitted. The alternator will think the battery requires more voltage and fire about 25 volts into the electronics!
What kind of electronics are you talking about?
__________________
There is a place on this planet for all of Gods creatures.........right next to my tatties and gravy.
A1an is offline   Reply With Quote
Old 09 April 2015, 03:56   #7
Member
 
Country: UK - England
Town: North Lincs
Boat name: Clam Chowder
Make: Humber
Length: 5m +
Engine: 85 Yam
Join Date: May 2010
Posts: 43
Quote:
Originally Posted by A1an View Post
What kind of electronics are you talking about?
Was talking about VHF etc, but as it's only 25 hp outboard he probably not got any thing connected!

I've encounter this problem with my powerboat racing clients, when the battery cut off jumps off or battery cables work loose, the alternator senses 0 volts, so put out more voltage and fries the electronics.
__________________
Boatintercoms is offline   Reply With Quote
Old 09 April 2015, 05:47   #8
Member
 
A1an's Avatar
 
Country: UK - Scotland
Town: Fort William
Make: Humber Destroyer
Length: 5m +
Engine: Yamaha F80
Join Date: Mar 2012
Posts: 2,239
RIBase
But if the outboard is not connected to the battery in the first place there will be no spike.
__________________
There is a place on this planet for all of Gods creatures.........right next to my tatties and gravy.
A1an is offline   Reply With Quote
Old 09 April 2015, 11:22   #9
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Also no load-induced smoothing of the output. If there's no voltage regulator, you'll get unsmoothed pulsed DC at somewhere around 18-24 volts.

Re-reading the OP, if you never plan to use the electrical system, you can probably get away with what you proposed. Be aware that you will likely kill the alternator system, though, which will need repair if you decide you do want to use it.

jky
__________________
jyasaki is offline   Reply With Quote
Old 09 April 2015, 14:24   #10
Member
 
Country: UK - England
Town: Margate / Ramsgate
Boat name: Ballistic
Make: Ballistic
Length: 7m +
Engine: Yam HPDI 250
Join Date: Feb 2002
Posts: 2,835
That engine won't have an alternator, it'll be stator charging circuit surely ?
__________________

__________________
Daniel 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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:57.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.