Battery, R/R, or the dreaded stator - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 20 (permalink) Old 07-03-2008, 09:28 AM Thread Starter
Undercover Sportbiker
 
AJCruzin's Avatar
 
Join Date: Oct 2007
Location: SoCal (SF Valley) 91343
Posts: 1,097
iTrader: (19)
 
Battery, R/R, or the dreaded stator

96 VN750 with 33K on it. The battery voltage (cold) at the terminals is 11.5. It hs a hard time starting, and when running, the volt meter stays locked around 10 - 11. My thinking is that it may actually be a bad battery since the voltage remains constant and doesn't drop as opposed to a bad stator or R/R. Anyone have any thoughts on this? I haven't done any of the voltage tests at the stator and the R/R or the continuity checks yet. Just thought I'd throw it out there to see what the group think is on this before I go ordering several hundred $$ worth of parts to fix it.... Thanks in advance!

AJCruzin is offline  
Sponsored Links
Advertisement
 
post #2 of 20 (permalink) Old 07-03-2008, 10:07 AM
Senior Member
 
BigT's Avatar
 
Join Date: Mar 2007
Location: Houston, TX
Posts: 236
iTrader: (1)
 
Is the voltage (cold) when the bike is off or on and not warmed up yet? If it's when the bike is off, then your battery is not fully charged which could be either a bad battery, the r/r or the stator.

If it's when the bike is running, check the voltage on your battery before you start it, if it's ok then you've got a charging system issue that needs to be diagnosed.

Of course, start with the small/easy things first and check all of your connections on the battery, the ground and anything else that might have worked itself loose or be corroded. The next step would be the testing procedure on the r/r and stator.

Good luck, hopefully it's something simple.

I smile 'cause I don't know what the h*ll is going on.
BigT is offline  
post #3 of 20 (permalink) Old 07-03-2008, 10:14 AM Thread Starter
Undercover Sportbiker
 
AJCruzin's Avatar
 
Join Date: Oct 2007
Location: SoCal (SF Valley) 91343
Posts: 1,097
iTrader: (19)
 
The voltage reads right around 11.5 with the bike off and cold. It also pretty much read the same after my bud drove it down from his house, which made me suspect that it's the batt and not the charging system, since the voltage doesn't drop. All the horror stories I've read so far of a fialed / fried stator say that the voltage starts dropping towards zero when the stator goes. My impression is that the charging system is working but the batt is not holding the charge as well as or like it should. I'm going to rip into it over the weekend and check the wiring. Tragically, noone in my area carries a MF batt. Auto Zone has the old fashiioned kind, but I don't want to dump the $$ into a less than optimal batt.

AJCruzin is offline  
 
post #4 of 20 (permalink) Old 07-03-2008, 10:39 AM
Search Goddess
 
Dianna's Avatar
 
Join Date: Jun 2004
Location: Conway, AR
Posts: 1,998
iTrader: (2)
     
One very simple and cheap test. Take the battery out and take it down to Auto Zone and have it load tested. That will tell you instantly if it is the battery.
Chances are if it's not even up to snuff starting out that's your key problem.
Our bikes need a healthy battery.

Dianna
Conway, AR
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)
Dianna is offline  
post #5 of 20 (permalink) Old 07-03-2008, 05:59 PM Thread Starter
Undercover Sportbiker
 
AJCruzin's Avatar
 
Join Date: Oct 2007
Location: SoCal (SF Valley) 91343
Posts: 1,097
iTrader: (19)
 
Good call! I'll do that as soon as I get out of here.

AJCruzin is offline  
post #6 of 20 (permalink) Old 07-03-2008, 06:23 PM
Search Goddess
 
Dianna's Avatar
 
Join Date: Jun 2004
Location: Conway, AR
Posts: 1,998
iTrader: (2)
     
Quote:
Originally Posted by AJCruzin View Post
Good call! I'll do that as soon as I get out of here.
*LOL* Ok, so which bike did I just help?

And you are certainly welcome here. Once a Vulcan rider, always a vulcan family member!

Dianna
Conway, AR
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)
Dianna is offline  
post #7 of 20 (permalink) Old 07-03-2008, 08:54 PM Thread Starter
Undercover Sportbiker
 
AJCruzin's Avatar
 
Join Date: Oct 2007
Location: SoCal (SF Valley) 91343
Posts: 1,097
iTrader: (19)
 
It's my old baby. I'm helping my boy out. What's funny is I threw a quick charge on it and now it reads 12 - 12.85 across the batt with the bike off, and doesn't chnge with the bike on. The guy at Auto Zone was of the opinion that a load test was to charge the batt to see if it would hold a charge. About as helpful as the guys at the stealership! Anyway, I'm going to take it out for a run and see how she does. I think if anything the battery won't take a charge over 12.85 volts.

AJCruzin is offline  
post #8 of 20 (permalink) Old 07-07-2008, 07:23 PM
 
Join Date: Mar 2008
Posts: 88
iTrader: (0)
 
man im in the same boat as you are. my bike died on me yesterday and it wouldnt start back up. so i took it to bull dog and the load tested it and its good it reads 12.39 or so cold. so i started up the bike and it reads like 11.50 or so but does not go up when you rev the motor. so should i just do the rr or the stator?
great 1 is offline  
post #9 of 20 (permalink) Old 07-08-2008, 11:04 AM
Search Goddess
 
Dianna's Avatar
 
Join Date: Jun 2004
Location: Conway, AR
Posts: 1,998
iTrader: (2)
     
Quote:
Originally Posted by great 1 View Post
man im in the same boat as you are. my bike died on me yesterday and it wouldnt start back up. so i took it to bull dog and the load tested it and its good it reads 12.39 or so cold. so i started up the bike and it reads like 11.50 or so but does not go up when you rev the motor. so should i just do the rr or the stator?
If it ran 12.39 cold, what were the reading under load? That is what a true load test would show you. A lot of batteries may look good when initially charged but the true test is how long they hold that charge and how they perform under load.

Dianna
Conway, AR
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)
Dianna is offline  
post #10 of 20 (permalink) Old 07-08-2008, 11:07 AM
Search Goddess
 
Dianna's Avatar
 
Join Date: Jun 2004
Location: Conway, AR
Posts: 1,998
iTrader: (2)
     
Just for reference, here is some info on testing a battery
http://www.mpoweruk.com/testing.htm

Dianna
Conway, AR
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)
Dianna is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome