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Big Dog Motorcycles
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Technical
Technical related discussions.
How-To
Member submitted articles on How-To work on your Big Dog.
Threads
972
Messages
12.1K
Sub-forums
Sub-forums
Handlebars
Primary
Clutch
Starter
Wheels
Engine
Frame & Chassis
Brakes
Charging System
Forks
Carburetor
Electrical
Threads
972
Messages
12.1K
Speedo issue
Saturday at 11:58 PM
Fat-tire Mayhem
EFI Topics
Electronic Fuel Injection issues
Threads
170
Messages
2.3K
Threads
170
Messages
2.3K
Rear cylinder switches off when hot.
May 25, 2026
SKOGDOG
Technical Bulletins and Recalls
Threads
122
Messages
1.3K
Threads
122
Messages
1.3K
2008 fuel pump
Jul 7, 2026
Jwooky
New Owner Necessities
What new owners need to keep their Dog's running strong!
Threads
28
Messages
568
Threads
28
Messages
568
2003 Mastiff service manual PDF
Jun 8, 2026
HMAN
Help Wanted
No, not a job offer, if you're having trouble, ask for help here!
Threads
3.1K
Messages
36.2K
Threads
3.1K
Messages
36.2K
Short battery cable
Monday at 10:27 PM
La Rana
Fluids!!
Threads
180
Messages
2.5K
Threads
180
Messages
2.5K
Primary problems.
Jun 8, 2026
PapaStein
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E
Inverted forks 02 Pro Sport Need Help.
Ernie12
Jul 21, 2018
2
3
4
Replies
63
Views
8K
Jan 29, 2021
wezxwezx
W
F
2004 BDC troubles
Forrest&Melissa
Nov 5, 2020
2
3
4
Replies
62
Views
7K
Jan 24, 2021
Mikeinjersey
J
Sissy bar 2003 chopper
jrk9789
Jan 24, 2021
Replies
1
Views
591
Jan 24, 2021
mjsk9
R
Questions about Start/Run/Stop switch
Robiet
Jan 10, 2021
2
3
4
Replies
64
Views
7K
Jan 21, 2021
Mr. Wright
C
Inner primary
Cberger_racing
Jan 16, 2021
Replies
8
Views
2K
Jan 18, 2021
Cberger_racing
C
first time wont start
Dogbone
Aug 27, 2019
Replies
18
Views
2K
Jan 14, 2021
Mikeinjersey
M
Electrical issues
Mnks 100
Jan 2, 2021
2
Replies
21
Views
2K
Jan 11, 2021
Mnks 100
M
Cutch Adjustment FYI......
Marky-Marc
Jan 5, 2021
Replies
1
Views
1K
Jan 5, 2021
HMAN
12 Plate Ball and Ramp vs. 9 Plate (EZ pull) ball and Ramp
Marky-Marc
Jan 3, 2021
Replies
4
Views
1K
Jan 3, 2021
Jwooky
Stranded!! (Sort of)
ToolHandLuke
Dec 23, 2020
Replies
6
Views
1K
Dec 24, 2020
Mr. Wright
A few 'tips' to check if you HAVE EXCESSIVE BLOW BY 117
Marky-Marc
Dec 17, 2020
Replies
1
Views
1K
Dec 17, 2020
knothead
Parts Manual
rpols7
Dec 12, 2020
Replies
10
Views
1K
Dec 15, 2020
mjsk9
1
Wiring diagram for a 1999 Thunderheart ignition
128midnightrider
Sep 5, 2020
Replies
4
Views
2K
Dec 14, 2020
chubs
This day in 2008...
gripman01
Dec 10, 2020
Replies
0
Views
669
Dec 10, 2020
gripman01
Sumping
2003BDChopper
Dec 9, 2020
Replies
0
Views
558
Dec 9, 2020
2003BDChopper
J
Fork rake 0 degree
jerry574
Nov 15, 2020
2
Replies
38
Views
4K
Nov 19, 2020
jerry574
J
Y'all were mostly right...........
Brent Herridge
Nov 9, 2020
Replies
7
Views
2K
Nov 13, 2020
Th3InfamousI
2004 bigdog ridgeback has no spark
The rider 1116
Nov 7, 2020
Replies
16
Views
3K
Nov 11, 2020
Mikeinjersey
Bike quit & smoke coming from electric ignition
Hardtale
Jun 23, 2019
Replies
15
Views
3K
Nov 5, 2020
Forrest&Melissa
F
No red LED on thunder heart ignition module
ig_314
Jun 24, 2020
2
Replies
23
Views
4K
Oct 31, 2020
JDogg
J
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