so the bike runs fine but............ - 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 13 (permalink) Old 05-19-2012, 03:27 PM Thread Starter
ass hole extaordinaire
 
new rider 9984's Avatar
 
Join Date: May 2012
Location: Sulphur Springs TX
Posts: 3,780
iTrader: (7)
 
so the bike runs fine but............

when i take her out for about an hour and get her all lathered up and well warmed then i cut her off and i get no love when it comes to starting again it is my belief that the r/r is getting too hot and not allowing the stator to charge the battery i just pulled it from the original location under the battery box and relocated it to rear of the side cover
I checked my pig tail to the r/r and the plastic part around two of the wires looks melted and burnt no i lie just took a second glance i have a partially torched section on all three yellow wires

any and all suggestions or comments are appreciated
thanks in advance
new rider 9984 is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 05-19-2012, 03:54 PM
1986 VN750
 
thtanner's Avatar
 
Join Date: Nov 2011
Location: Dana Point, CA
Posts: 3,255
iTrader: (8)
 
Garage
If you have 12v+ on the battery still, then you're describing the hot-start issue. There is a pickup coil gap mod that fixes that.

If you aren't seeing 14v charging @ 4k rpm you should test your stator, and your R/R via slims flow chart.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350

Last edited by thtanner; 05-19-2012 at 03:58 PM.
thtanner is offline  
post #3 of 13 (permalink) Old 05-19-2012, 09:18 PM Thread Starter
ass hole extaordinaire
 
new rider 9984's Avatar
 
Join Date: May 2012
Location: Sulphur Springs TX
Posts: 3,780
iTrader: (7)
 
ok so i suck at flow charts
i went ahead and did the pickup coil mod and she does start easier
the stator is kicking 14 volts or better to the battery at 4k when the bike is cool however once she warms up it barely kicks off 12.5 and this is after the relocating of the r/r
my best guess is that the r/r is bad
oh and i took off my baffles because the left one was broke when that guy backed into the bike and i have my air fuel mix at 3 1/2 turns and she still seams to be a little rich
new rider 9984 is offline  
 
post #4 of 13 (permalink) Old 05-19-2012, 09:30 PM
1986 VN750
 
thtanner's Avatar
 
Join Date: Nov 2011
Location: Dana Point, CA
Posts: 3,255
iTrader: (8)
 
Garage
Quote:
Originally Posted by new rider 9984 View Post
ok so i suck at flow charts
i went ahead and did the pickup coil mod and she does start easier
the stator is kicking 14 volts or better to the battery at 4k when the bike is cool however once she warms up it barely kicks off 12.5 and this is after the relocating of the r/r
my best guess is that the r/r is bad
oh and i took off my baffles because the left one was broke when that guy backed into the bike and i have my air fuel mix at 3 1/2 turns and she still seams to be a little rich
You'll want to test the R/R and stator hot. The flow charts are basic resistance tests. Set your MM to the same icon as the test says, and you should be good. :P

btw, turning the fuel screw out makes it richer, and in makes idle leaner.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
thtanner is offline  
post #5 of 13 (permalink) Old 05-20-2012, 01:05 AM Thread Starter
ass hole extaordinaire
 
new rider 9984's Avatar
 
Join Date: May 2012
Location: Sulphur Springs TX
Posts: 3,780
iTrader: (7)
 
ok so after a five mile ride i checked and i have 14 volts at 4k rpms.
the temp was at half way and both heads were at one one th... ouch dont touch that so i think that counts as warmed up.
could the r/r cause an intermittent charging issue?
new rider 9984 is offline  
post #6 of 13 (permalink) Old 05-20-2012, 06:30 AM
Senior Member
 
Join Date: Jan 2012
Posts: 619
iTrader: (0)
 
If you have a charge of 14v then it should be ok, however you must clean and di-electric grease all connections, if it is getting hot at the connections they need to be cleaned and greased.
Swagman is offline  
post #7 of 13 (permalink) Old 05-20-2012, 10:23 AM
Sparky!!!
 
slimvulcanrider's Avatar
 
Join Date: May 2008
Posts: 8,695
iTrader: (3)
   
Garage
your charging system sounds fine... however it sounds like your main grounds are loose or corroded. or your battery is headed south
slimvulcanrider is offline  
post #8 of 13 (permalink) Old 05-20-2012, 01:39 PM Thread Starter
ass hole extaordinaire
 
new rider 9984's Avatar
 
Join Date: May 2012
Location: Sulphur Springs TX
Posts: 3,780
iTrader: (7)
 
brand new super start battery came dry charged
instructions said pour in the acid and let stand for 1 hr
then trickle charge for 14 hrs
and let stand another 1 to 2 hrs before putting in service
only thing i did differently is it was 1 am when the 14 hr charge was thru so i unhooked it and waited till morning to put it in
new rider 9984 is offline  
post #9 of 13 (permalink) Old 05-20-2012, 02:05 PM
1986 VN750
 
thtanner's Avatar
 
Join Date: Nov 2011
Location: Dana Point, CA
Posts: 3,255
iTrader: (8)
 
Garage
Quote:
Originally Posted by new rider 9984 View Post
brand new super start battery came dry charged
instructions said pour in the acid and let stand for 1 hr
then trickle charge for 14 hrs
and let stand another 1 to 2 hrs before putting in service
only thing i did differently is it was 1 am when the 14 hr charge was thru so i unhooked it and waited till morning to put it in
That is how I do my batteries too. I usually wait longer than the 1-2 hours they suggest prior to putting it in service.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
thtanner is offline  
post #10 of 13 (permalink) Old 05-20-2012, 08:38 PM Thread Starter
ass hole extaordinaire
 
new rider 9984's Avatar
 
Join Date: May 2012
Location: Sulphur Springs TX
Posts: 3,780
iTrader: (7)
 
so the connector on my r/r just didn't look so swell so i cut one wire at a time and put my own ends on it and placed them back on there respective blades in the r/r and guess what happened?
that's right no more dead battery!!!!!
also like i had mentioned before i took off the baffles because one was broken anyways and then she started missing on the back head.
did the grambo trick just to do it and for ****s and giggles i went ahead and cleaned my coolant bottle while it was off.
grambo took the little tap out of the back head but did nothing for the miss.
so i started adjusting the air fuel mix on the carbs.
starting at 2 and 1/2 and taking a short ride about two miles engine was already warm.
still missing tried three turns same thing so i went on with this half a turn at a time same trip each time and finally at 4 1/2 turns out she is idling smooth and not missing.
now here is the question would the lack of baffles cause me to have these problems and have to go that far out on the mix screws?
new rider 9984 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