New Battery with Backwards Polarity - VTXOA
 5Likes
Reply
 
LinkBack Thread Tools
post #1 of 17 (permalink) Old 08-31-2019, 01:28 PM Thread Starter
Senior Member
 
CandleStick's Avatar
 
Join Date: Aug 2008
Location: UT
Posts: 780
Garage
Send a message via AIM to CandleStick
New Battery with Backwards Polarity

Hi, I was wondering if anyone could chime in about this. My friend has a 1800C and we just put in a new battery from Batteries Plus. The battery only fits one way and once we hooked it up, we realized that the new battery is opposite polarity than it is supposed to be. After trying to start it, I noticed the backwards polarity. Now the bike starts and runs for a couple of seconds and sputters out. We didn't even think the battery could be backwards as it only goes in the one way to hook up. Any help would be great. Thanks.

-------
There is no "off" position on the genius switch.
David Letterman

06 1800S/3
CandleStick is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 08-31-2019, 01:30 PM
Pope "papa" of the VTXOA
 
Chicago-Spike's Avatar
 
Join Date: Nov 2003
Location: St Charles, IL.
Posts: 63,426
They gave you the wrong battery is what this comes down to.
rangers4u likes this.

AMA Life Member 721314
Chicago-Spike is offline  
post #3 of 17 (permalink) Old 08-31-2019, 01:39 PM Thread Starter
Senior Member
 
CandleStick's Avatar
 
Join Date: Aug 2008
Location: UT
Posts: 780
Garage
Send a message via AIM to CandleStick
We installed the correct battery, now the bike starts and runs for a second and sputters out. ??

-------
There is no "off" position on the genius switch.
David Letterman

06 1800S/3
CandleStick is offline  
 
post #4 of 17 (permalink) Old 08-31-2019, 02:18 PM
Pope "papa" of the VTXOA
 
Chicago-Spike's Avatar
 
Join Date: Nov 2003
Location: St Charles, IL.
Posts: 63,426
By putting power through the ECU reversed that probably killed the ECU. I'd be informing Batteries Plus that they now owe you a new ECO

AMA Life Member 721314
Chicago-Spike is offline  
post #5 of 17 (permalink) Old 08-31-2019, 02:32 PM
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 10,501
Garage
One of the things that need to be verified before ordering and installing.
Seems the VTX batteries have the reverse post batteries for other applications.

1800C what year.

You said it starts, runs for a second and sputters out. Amazing...
Is there a Fuel pump prime when IGN turned on???

05/06 C and F got an extra fuse hiding in the right side cover. In a 3 fuse holder/box a 20 amp fuse designated FI, Ignition, Fuel Pump

All 1800 have 2 - 30 amp fuses in the left frame cover. 3 fuse holder/box.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 193,118 VTX miles

Last edited by Hans&Feet; 08-31-2019 at 02:34 PM.
Hans&Feet is offline  
post #6 of 17 (permalink) Old 08-31-2019, 03:57 PM
Junior Member
 
Join Date: Aug 2019
Posts: 3
Exact same problem

I just had the exact same thing happen to me. Bought a batteries plus battery with reverse polarity. Installed it, would not start, took it out and realized it was backwards. Got a new one and installed it. Bike starts for a second or two and sputters out. Will not run.
What is the cause? Is this a fuse or did we fry something else? Help please.
RedDane is offline  
post #7 of 17 (permalink) Old 08-31-2019, 04:00 PM
Junior Member
 
Join Date: Aug 2019
Posts: 3
What is an ECU. I have the same problem with my VTX 1800 C 2006. Help!!
RedDane is offline  
post #8 of 17 (permalink) Old 08-31-2019, 04:03 PM
Junior Member
 
Join Date: Aug 2019
Posts: 3
What is a fuel pump prime when ignition is turned on?? Is that something we should hear or see? Not sure
My bike is a vtx1800 C 2006. The exact thing happened to me when I put in a battery with reverse polarity. Help!!
RedDane is offline  
post #9 of 17 (permalink) Old 09-01-2019, 12:11 PM
Pope "papa" of the VTXOA
 
Chicago-Spike's Avatar
 
Join Date: Nov 2003
Location: St Charles, IL.
Posts: 63,426
The ECU is the Engine Control Unit or the brain of the bike.

The fuel pump should whine when you turn the key to the "ON" position and you will hear it on your 2006 near the back of the bike under the seat. If you don't hear that, the pump isn't working. But, since both of you say the bike will start, but shuts off right away, the pump is fine. If the pump didn't prime the fuel system, it would not start
Harkon likes this.

AMA Life Member 721314
Chicago-Spike is offline  
post #10 of 17 (permalink) Old 09-01-2019, 01:00 PM
Senior Member
 
Harkon's Avatar
 
Join Date: May 2010
Location: Calgary, Alberta, Canada
Posts: 4,661
It is conceivable that because it starts at all, the ECU may be okay and the problem is some sensor or something, but the ECU being damaged is a distinct possibility. The easiest way to troubleshoot this would be to find an ECU you can borrow to see if that solves the problem. Otherwise you will need to start troubleshooting all sensor information into the ECU vs all of the ECU output to the ignition and fuel systems. Almost certainly you will need an oscilloscope and a DMM at a bare minimum for that ... and some good diagnostic method and system knowledge.


If you can find an ECU to borrow, at least you will eliminate or verify the hardest to troubleshoot device in the system.
RedDane likes this.


'12 Road Glide Ultra, Kuryakyn Alley Cat intake, Jackpot Super Duals header, Jackpot HiRoller mufflers, PV Tuner, Daymaker LEDs
Harkon is offline  
Reply

Tags
battery polarity

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the VTXOA forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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



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