Welcome to Our Community

Wanting to join the rest of our members? Feel free to sign up today.

Sign Up

Electrical system bad?

Discussion in 'EFI Topics' started by Chuck Hughes, Jul 28, 2017.

  1. Chuck Hughes

    Chuck Hughes Member

    Joined:
    Jul 26, 2017
    Messages:
    98
    Likes Received:
    90
    Trophy Points:
    18
    Location:
    Bechtelsville PA
    My Bike(s):
    01 Big Dog Wolf, 02 Chopper Sportster
    First Name:
    Chuck
    So, I see a lot of stuff going on with the electronics on here, and I've seen a bit online too. Ivery only had mine a month, so I've had zero issues, but is the electrical system in these really THAT bad? Making me think about rewiring and using a HD softail kit.
     
    bigkelk9 likes this.
  2. SKOGDOG

    SKOGDOG One of the old ones.
    Supporting Member Full Member

    Joined:
    Sep 21, 2009
    Messages:
    1,608
    Likes Received:
    2,678
    Trophy Points:
    113
    Location:
    Pittsburg, Kansas
    My Bike(s):
    2008 K9-2010 Bulldog Bagger
    First Name:
    Rick
    I have an 08 K9 with about 65,000 miles, and Blacktopper has an 07 with 80,000 miles...both with the original ECH's. I think Big Dogs have an incidence of systemic electrical problems more than most other brands, but many (if not most) of the original bikes run just fine and do not require electrical component replacement.
    Many 'Gurus' have very good advice about everyday practices in maintaining a healthy electrical system, including buying a quality battery, keeping it fully charged, and obsessively checking the major connections to be sure they are good and tight. They also recommend making sure connections are treated with dielectric grease and not exposed to water any more than absolutely necessary.
    I know Baddawg Bill is a strong supporter of old school wiring, certainly a defensible position. But I'm happy with my OEM. Think I'll buy chrome goo-gahs for my Bagger instead.
     
    PROFLYER, bigkelk9 and Chuck Hughes like this.
  3. Chuck Hughes

    Chuck Hughes Member

    Joined:
    Jul 26, 2017
    Messages:
    98
    Likes Received:
    90
    Trophy Points:
    18
    Location:
    Bechtelsville PA
    My Bike(s):
    01 Big Dog Wolf, 02 Chopper Sportster
    First Name:
    Chuck
    Thanks for the feedback
     
  4. Hirter6Pack

    Hirter6Pack Not Quite A Guru
    Supporting Member Full Member

    Joined:
    Oct 31, 2015
    Messages:
    2,349
    Likes Received:
    5,085
    Trophy Points:
    113
    Location:
    Saint Joseph Mo
    My Bike(s):
    2004 Mastiff
    First Name:
    Rick
    I'd recommend if you wash your bike with the hose or high pressure to stay away from the handlebars, speedo and battery box
     
    PROFLYER and bigkelk9 like this.
  5. Chuck Hughes

    Chuck Hughes Member

    Joined:
    Jul 26, 2017
    Messages:
    98
    Likes Received:
    90
    Trophy Points:
    18
    Location:
    Bechtelsville PA
    My Bike(s):
    01 Big Dog Wolf, 02 Chopper Sportster
    First Name:
    Chuck
    Good deal. I rewired the entire handlebars, but I'll avoid the switches, battery box and speedo
     
  6. Mr. Wright

    Mr. Wright Guru
    Supporting Member Full Member

    Joined:
    Aug 27, 2012
    Messages:
    8,111
    Likes Received:
    11,732
    Trophy Points:
    113
    Location:
    Salem, Missouri
    My Bike(s):
    04 BD Chopper- 2002 1100 v-star
    First Name:
    Shannon
    You have to remember, the only people posting electrical problem, are the ones that have had an issue. What you don't see is the thousands that are not having an issue. I work on a lot of Dogs, and in the 14 years of doing so, I've only replaced 3 EHC's. Two because of cheep batteries that shorted out, and the other had the plug connector come loose and it broke some pins off.
     
  7. BWG56

    BWG56 Guru

    Joined:
    Jul 29, 2008
    Messages:
    20,832
    Likes Received:
    36,572
    Trophy Points:
    113
    Location:
    USA
    My Bike(s):
    Big Dog, SpyderF3
    First Name:
    Ker
    Run it until ya have problems if you do and then fix it. I personally know of 6 people including myself that have replaced the EHC. Dead One Custom has sold over 4000 ESC's and I'm sure they sold as many if not more RIP-I and Rip-II's not to mention how many Wire+ and PDM's were sold. Those numbers would get you closer to 50% if not more that have been replaced.
    Like I said, run it until you have or if you have problems then address it, some of the lucky ones are still running OEM.
     
  8. Bdm4ever

    Bdm4ever Well-Known Member
    Troop Supporter

    Joined:
    Sep 2, 2009
    Messages:
    1,642
    Likes Received:
    4,457
    Trophy Points:
    113
    Location:
    USA
    My Bike(s):
    Something Like K9
    First Name:
    Tony
    Why you need spares if they're so good? :whoop::oldhardlaugh:Dohhh.. my bad.. just teasing.. :cheers:
     
    bdm7250, BWG56 and pknowles like this.
  9. bigkelk9

    bigkelk9 Well-Known Member
    Supporting Member Full Member

    Joined:
    Sep 7, 2015
    Messages:
    3,272
    Likes Received:
    5,808
    Trophy Points:
    113
    Location:
    Southeast Texas / Southern California
    My Bike(s):
    07 big dog k9
    First Name:
    Kel
    I got my bike from the original owner who bought it in Feb of 08 with about 40 miles on it. He was a dealer at the time and his shop is still in business with most of the same employees he had back then.. but n e ways, he had the bike completely re-wired because he didn't want to face the problems. But I know many personally who have original EHC's with no issues.. so like Ker says, ride it til it gives u issues if it does. One of the big pluses for aftermarket is u don't have to worry about getting it wet or getting caught in the rain which I find myself doing constantly.. lol
     
    Forsaken, Hirter6Pack and BWG56 like this.
  10. bruce

    bruce Active Member
    Full Member

    Joined:
    Mar 9, 2008
    Messages:
    617
    Likes Received:
    85
    Trophy Points:
    28
    Location:
    fawn grove, pa
    My Bike(s):
    2006 BIGDOG K-9
    First Name:
    Bruce
    06 - k9 - OVER 40000 MILES - electrical system fine.
     
    bigkelk9 likes this.
  11. Chuck Hughes

    Chuck Hughes Member

    Joined:
    Jul 26, 2017
    Messages:
    98
    Likes Received:
    90
    Trophy Points:
    18
    Location:
    Bechtelsville PA
    My Bike(s):
    01 Big Dog Wolf, 02 Chopper Sportster
    First Name:
    Chuck
    Good to know. Awesome pic by the way!
     
  12. Wolferider

    Wolferider New Member

    Joined:
    Jul 15, 2017
    Messages:
    5
    Likes Received:
    5
    Trophy Points:
    3
    Location:
    Muskegon, MI
    My Bike(s):
    2003 Big Dog Chopper
    First Name:
    Thomas
    Im having electical issues myself. I traced my wires and found that the rear lights wiring was rubbed completely bare. I got my chop for a song and dance so Im not complaining but anyone know where I can get a complete replacement harness. Ide rather jus re-wire the whole bike than continue to chase ghosts throught the system. For now Ive got a hotwire switch to strat the bike and the heads and turns stay on constant. I just make sure to get home before the werewolves come out.
     
  13. PROFLYER

    PROFLYER SWOLE
    Supporting Member Full Member

    Joined:
    Oct 8, 2007
    Messages:
    1,900
    Likes Received:
    920
    Trophy Points:
    113
    Location:
    Denver, CO
    My Bike(s):
    06 K9, 06 Mastiff (wife's)
    First Name:
    Sutton
    Make that 3 because of total shit batteries. I have had my 06 K9 since new and NEVER had a issue. Found a battery online with a 2 year warranty and good reviews so I bought it. About 3 weeks later it shorted internally and now I'm jammed in a battle with the company over what parts it fried. Took out my EHC and tach ring. $680 in parts.

    Make sure your voltage regulator is working right and install a 40amp fuse between the VR (volt reg) and the battery that way if it DOES take a crap the fuse will protect it. Lots of info on here on what/how to do it. Also buy good batteries. DEKA makes the harley and braille batteries and made the big dog batteries when they still were around so those are a suitable replacement. If you want easy, get a harley battery the 20lb that fits every soft tail and then keep it on the battery tender.
     
    #13 PROFLYER, Jul 28, 2017
    Last edited: Jul 31, 2017
    bigkelk9 likes this.
  14. bdm7250

    bdm7250 Guru
    Supporting Member Full Member

    Joined:
    Jun 3, 2016
    Messages:
    7,015
    Likes Received:
    17,221
    Trophy Points:
    113
    Location:
    Hamilton Ontario Canada
    My Bike(s):
    2008 BD Mastiff 2008 AIH Slammer
    First Name:
    Doug
    DOC's ESC has performed flawless, very straight forward install with instructions I might add..:D Over 9k miles without an issue:old2::old2:
     
    bigkelk9 likes this.
  15. bdm7250

    bdm7250 Guru
    Supporting Member Full Member

    Joined:
    Jun 3, 2016
    Messages:
    7,015
    Likes Received:
    17,221
    Trophy Points:
    113
    Location:
    Hamilton Ontario Canada
    My Bike(s):
    2008 BD Mastiff 2008 AIH Slammer
    First Name:
    Doug
    Just google "hoarder"..:oldhardlaugh::oldhardlaugh:
     
    bigkelk9 likes this.
  16. BigDogRick

    BigDogRick Active Member
    Full Member

    Joined:
    Sep 16, 2012
    Messages:
    697
    Likes Received:
    894
    Trophy Points:
    93
    Location:
    Phoenix, AZ
    My Bike(s):
    2000 Big Dog Vintage Classic, 2004 HD Fatboy, 2008 Jeep Rubicon, 1972 VW Bus
    First Name:
    Rick
    Your '02 was sold new with a Thunderheart EHC and separate Thunderheart Ignition Module that have proven to be extremely reliable. I am old-school rewiring mine after having issues for the first time in 17 years and 80,000 miles. I have had all the normal stuff go wrong with age and wear, key switch & batteries, stator, coil, voltage regulator, key switch & batteries, shorts, wires cut through by random events, monster short from a disconnected primary coil wire to my engine that shot flames out at 80mph four feet, did I say key switch & batteries?, etc. None of those issues ever damaged the Thunderheart to my knowledge. Only last year did the ignition module finally wear out and the EHC went bad this year. I am old school wiring because I do not trust the harness and if I am replacing that, I have reason to go old school because of how and where I ride and how much I rely on straight v-twin shops to help me wherever I am. Because I knew it had a Thunderheart all those years, I never assumed my problem was the EHC even once.
     
    bigkelk9 likes this.
  17. Th3InfamousI

    Supporting Member Full Member

    Joined:
    Sep 26, 2009
    Messages:
    10,797
    Likes Received:
    15,975
    Trophy Points:
    113
    Location:
    Texas
    My Bike(s):
    04 Ridgeback & 07 K9
    First Name:
    Eric
    My PDM fried with a Braille and took the tach ring and Speedo sensor with it. That costed me a cool $800-900

    MY VR tested fine but I replaced that and the stator at the same time. If is my opinion that we should be replacing these VR every 5 years. At least in my opinion it's worth $100

    Also these are 32 AMP VR so should be a 40 not a 50 AMP fuse. Unless you have the 3 stage 40AMP setup of course


    Sent from my SM-G925P using Tapatalk
     
    PROFLYER, bigkelk9 and USNChief like this.
  18. BWG56

    BWG56 Guru

    Joined:
    Jul 29, 2008
    Messages:
    20,832
    Likes Received:
    36,572
    Trophy Points:
    113
    Location:
    USA
    My Bike(s):
    Big Dog, SpyderF3
    First Name:
    Ker
    Where ya been son, we've discussed this a few years ago and a 40 amp is fine with the 32Amp system. Bolted right in the same place as the breaker.
    40amp.JPG IMG_1029.JPG
     
    bigkelk9 and bdm7250 like this.
  19. bdm7250

    bdm7250 Guru
    Supporting Member Full Member

    Joined:
    Jun 3, 2016
    Messages:
    7,015
    Likes Received:
    17,221
    Trophy Points:
    113
    Location:
    Hamilton Ontario Canada
    My Bike(s):
    2008 BD Mastiff 2008 AIH Slammer
    First Name:
    Doug
    :agree:
    IMG_6109.JPG
     
    bigkelk9 and BWG56 like this.
  20. PROFLYER

    PROFLYER SWOLE
    Supporting Member Full Member

    Joined:
    Oct 8, 2007
    Messages:
    1,900
    Likes Received:
    920
    Trophy Points:
    113
    Location:
    Denver, CO
    My Bike(s):
    06 K9, 06 Mastiff (wife's)
    First Name:
    Sutton
    Oops, 40AMP. I was...close?
     
    BWG56 likes this.

Share This Page