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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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Bike slips out of gear
ChopperJeff
May 20, 2011
Replies
5
Views
849
May 20, 2011
ChopperJeff
Vance in Hines Big Radius 2 into 1
Dlandbob
May 20, 2011
Replies
3
Views
997
May 20, 2011
shovelshot
HEAD LAMP
BADOG
May 14, 2011
Replies
8
Views
2K
May 19, 2011
BADOG
need part # for 06 k9
jerr-06k9
Nov 29, 2008
2
Replies
25
Views
3K
May 17, 2011
BFB
C
quickly lost ALL resistance on clutch...help?
Chad Mitchell
May 16, 2011
Replies
10
Views
1K
May 16, 2011
toodie
T
ECM Replacement
TomWallace
Aug 5, 2008
2
Replies
23
Views
13K
May 16, 2011
outdoorsman26
Will a Coyote tank and fender fit on a 2004 chopper?
Moespeeds
May 15, 2011
Replies
5
Views
842
May 16, 2011
stryfox
S
Help needed.
Tattooedirish1
May 13, 2011
Replies
7
Views
1K
May 13, 2011
Tattooedirish1
Removing starter
AddictJ
May 9, 2011
Replies
18
Views
6K
May 12, 2011
AddictJ
Need a wiring diagram for a 2008 K9 EFI
Moespeeds
May 12, 2011
Replies
8
Views
971
May 12, 2011
Moespeeds
WP381?????
2004hdfxsti
May 7, 2011
Replies
5
Views
1K
May 9, 2011
bdmridgeback
M
anyone mod a K9 w a 330 rear tire?
machete
May 3, 2011
Replies
10
Views
2K
May 7, 2011
RubWhore
another headlight question
TCALZ06
Apr 19, 2011
Replies
14
Views
1K
May 7, 2011
alphadog
Compensating sprocket
Broton
Jul 26, 2010
Replies
11
Views
2K
May 7, 2011
Billy Big Dog
107 S & S motor Twin Cam?
Billy Big Dog
May 6, 2011
Replies
4
Views
1K
May 6, 2011
Five Five
J
Which Coil
jeffwest5599
May 6, 2011
Replies
1
Views
845
May 6, 2011
jeffwest5599
J
2004 Chopper Stator
Billy Big Dog
May 6, 2011
Replies
1
Views
1K
May 6, 2011
Brew
S
hand brake controls leaking
shawn449
May 3, 2011
Replies
6
Views
996
May 6, 2011
PA Chopper
01 Mastiff wiring diagram
johnnybgood
May 5, 2011
Replies
0
Views
655
May 5, 2011
johnnybgood
J
Starting and Surging
jeffwest5599
May 4, 2011
Replies
1
Views
701
May 4, 2011
Coolbreeze
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