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Harley Davidson Forums
Harley Davidson Motorcycles
Classic
Knuckle Head
Knuckle Head
A place to talk about Knuckle Head motors.
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Intake Manifold Seals
lownslow
on Mar 20, 2026
Mar 20, 2026
02:07 PM
by
lownslow
2
147
1942 Knucklehead oil pump stuck on crankcase
London dude
on Mar 7, 2026
Mar 14, 2026
01:11 PM
by
Mike1956G
7
401
1936 knucklehead cases
(
1
2
)
Redmotorcyclejoyce
on Feb 16, 2026
Feb 21, 2026
03:44 PM
by
Mike1956G
11
595
Aluminum Primary
(
1
2
)
00 fxd
on Sep 30, 2025
Jan 18, 2026
09:08 AM
by
Emerica1975
12
916
1941 FL is finally done
(
1
2
3
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)
johnjzjz
on Aug 21, 2025
Jan 16, 2026
10:09 PM
by
1981 suprglide
33
2,858
Carl's Cycle Supply
rizzo
on Dec 23, 2025
Dec 27, 2025
06:40 PM
by
johnjzjz
1
470
Knuckle Build
HDDevAus
on Nov 30, 2025
Nov 30, 2025
06:11 PM
by
470004
1
315
1938 EL Vin Question
(
1
2
3
)
00 fxd
on Oct 2, 2025
Oct 12, 2025
06:34 PM
by
johnjzjz
23
1,484
Burn down 72FLH
(
1
2
)
68oramac
on Jun 28, 2025
Aug 20, 2025
02:52 PM
by
68oramac
10
1,144
1942 HD Knucklehead Transmission OEM
Mikebenko1942
on Aug 6, 2025
Aug 12, 2025
01:02 PM
by
eighteight
6
559
New knuckle resto heart brake
johnjzjz
on May 23, 2025
Jun 10, 2025
12:46 PM
by
eighteight
5
624
2 hour old KN S&S kit goes bang
(
1
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johnjzjz
on Sep 21, 2023
Jun 1, 2025
03:56 PM
by
johnjzjz
27
3,859
spark plugs
47FL
on May 15, 2025
May 15, 2025
09:21 PM
by
47FL
2
345
39 springer veering right
firstripholdmybeer
on Apr 30, 2025
May 4, 2025
07:58 AM
by
johnjzjz
5
442
Pan Knuckle
manyharleys
on Oct 29, 2020
Apr 26, 2025
03:45 PM
by
johnjzjz
5
4,609
Linkert M74 B
lownslow
on Feb 8, 2025
Apr 17, 2025
06:10 AM
by
Architect
7
655
printable model of a Knucklehead engine
3dcase
on Mar 14, 2025
Mar 14, 2025
03:07 PM
by
470004
2
482
F vs FL
47FL
on Mar 2, 2025
Mar 11, 2025
07:53 PM
by
rizzo
2
496
Custom 48- or 49-tooth rear sprockets!
NM Pan-shovel
on Feb 14, 2025
Feb 21, 2025
12:03 PM
by
Hannibal Smith
5
473
Tank repair
47FL
on Jan 30, 2025
Jan 31, 2025
07:58 AM
by
Architect
3
460
Value of this 1947 Knucklehead?
(
1
2
)
armyofme
on Oct 7, 2024
Dec 27, 2024
12:02 PM
by
eighteight
14
1,954
request for clear close up photos of knuckle rocker boxes
3dcase
on Dec 18, 2024
Dec 19, 2024
11:46 PM
by
3dcase
3
448
Who is the best for vintage HD restorations
(
1
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)
JimG24
on Aug 18, 2021
Oct 8, 2024
09:24 PM
by
TwiZted Biker
34
9,269
Moved
1939 Harley Knucklehead EL Engine
Antique_Collector
on Aug 23, 2024
-
-
-
sat morn meet up
old mago
on Aug 16, 2024
Aug 16, 2024
10:36 PM
by
old mago
0
575
46 EL basket case
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hellonewman
on Oct 24, 2021
Aug 11, 2024
07:29 PM
by
hellonewman
164
22,239
NEED white grips anyone have
johnjzjz
on Aug 7, 2024
Aug 8, 2024
07:23 PM
by
johnjzjz
5
1,018
Knuckle Head parts
marcelm
on Jul 12, 2024
Jul 12, 2024
02:04 PM
by
johnjzjz
3
630
Back in the day
eighteight
on Jun 5, 2024
Jun 5, 2024
04:22 PM
by
470004
5
813
Check out this scam
hellonewman
on May 19, 2024
May 20, 2024
05:24 AM
by
eighteight
2
954
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