Reply
 
Thread Tools Search this Thread
 
Old 20 May 2007, 12:18   #1
Member
 
Country: UK - England
Town: Bristol
Length: 5m +
Join Date: Mar 2006
Posts: 338
Suzuki water alarm float switch

Hi,
I am slowly making progress down the route of finding out what is wrong with my DT85.....

The symptoms are that there is no audio/visual water alarm when the ignition is on and the engine will not run at WOT as if it is in rev limit.

I am not convinced that the two are linked but they may be. I have changed the spark plugs and it seems to idle much better but I have not been able to run it under load yet.

Moving to the water alarm, I have removed the float switch and have discovered that not a lot changes on the three wires with float position!

The switch has 3 wires:
black which I am sure is earth.
Green/Red which seems to get 12V from the CDI
Purple/White back into the CDI.

Now if I measure the resistance between the coloured wires and the black then irrespective of float position I get opne circuit for Green/Red and about 80kOhms for the Purple/White.

So I think the float switch has expired, would you agree?

If so, where do I get a replacement?

Cheers,

Orve.
__________________

__________________
David G is offline   Reply With Quote
Old 20 May 2007, 15:20   #2
Member
 
Country: UK - England
Town: Enfield/Switzerland
Boat name: Zonneschijn II/Vixen
Make: Shakespeare/Avon
Length: 7m +
Engine: Evin' 175 DI /Yam 90
MMSI: 235055605
Join Date: May 2006
Posts: 1,418
Hi,

No idea on the technical bits you mention below, but try International Marine Supplies. I think they bought all the Suzi spares for the older outboards, or so I was told. They may be able to help.
http://www.imsupplies.co.uk/

I had a problem with a Suzuki 65 some time ago, whereby it kept cutting the revs back after running at WOT for 30 secs or so.

I think it was eventually cured by replacing a sensor on the back of the head that had fallen to bits and been silicone sealed in by a previous owner.

Hope that helps a bit.

Neil
__________________

__________________
Neil Harvey is offline   Reply With Quote
Old 20 May 2007, 15:45   #3
Member
 
Country: UK - England
Town: Bristol
Length: 5m +
Join Date: Mar 2006
Posts: 338
Neil,
Thanks for your help.

Orve.
__________________
David G is offline   Reply With Quote
Old 27 May 2007, 06:12   #4
Member
 
Country: UK - England
Town: Bristol
Length: 5m +
Join Date: Mar 2006
Posts: 338
Quote:
Originally Posted by Orville View Post

The switch has 3 wires:
black which I am sure is earth.
Green/Red which seems to get 12V from the CDI
Purple/White back into the CDI.

Now if I measure the resistance between the coloured wires and the black then irrespective of float position I get opne circuit for Green/Red and about 80kOhms for the Purple/White.

So I think the float switch has expired, would you agree?
Didn't get much input on this last time..hoping someone else might have an idea for me.....before I purchase a replacement unit.

I think the black to Purple/White wire circuit is a temperature monitor as the resistance varies when I put it in a mug of hot water!

The Green/Red has 12V from the CDI but there is no variation at all dependent on float position.

What I am wondering is if this part of the assembly should be a pure open/closed circuit; ie taking the 12V to ground on correct water flow?

Any Suzuki engineers out there?

Cheers,

Orve.
__________________
David G 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 19:04.


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