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Heads and Cylinders
All about your porting, compression, rings, cylinder and piston modifications to your bicycles engine
Forums
Motorized Bicycle Mechanical Components
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Are CDH Power performance heads any good?
BenchDweller
Jan 24, 2020
Replies
1
Views
2,135
Aug 28, 2021
mountain80
M
G
New bike kit and cylinder head cracked
Gunner135
Aug 12, 2021
Replies
0
Views
722
Aug 12, 2021
Gunner135
G
U
Stuffing a Minarelli Reed space for a Dio Reed build!
user54508
Aug 9, 2021
Replies
0
Views
1,004
Aug 9, 2021
user54508
U
shaving the piston skirt
Denis Zen
Jul 2, 2021
Replies
2
Views
1,038
Jul 4, 2021
Denis Zen
Customizing/modding the top of the piston
Denis Zen
Jun 19, 2021
Replies
3
Views
1,117
Jun 22, 2021
Denis Zen
Transfer port correction results:
mew905
Jun 25, 2014
2
Replies
25
Views
8,912
Jun 18, 2021
Jerdoggiedog
J
A
3rd transfer port plz help
Adam E
Mar 20, 2020
Replies
12
Views
9,617
Jun 18, 2021
Jerdoggiedog
J
R
Wrong piston ring size?
Rusty_Nail
Jun 13, 2021
Replies
0
Views
665
Jun 13, 2021
Rusty_Nail
R
Can't get jug over piston rings.
Desertrider19
May 23, 2021
Replies
5
Views
1,508
May 23, 2021
Nightster
Buying Cylinder Head
Whiskernips
Mar 23, 2021
Replies
1
Views
1,288
Mar 24, 2021
Tyler6357
D
New to forum have head issues. I just had a leak in the upper head kill my motor.
Dumbass on a bike
Feb 16, 2021
Replies
3
Views
818
Feb 16, 2021
wrench
K
Connecting for Phatmoto
Kuda
Feb 7, 2021
Replies
2
Views
1,058
Feb 13, 2021
Kuda
K
U
Yd100 piston & jug issue!
user54508
Feb 5, 2021
Replies
0
Views
2,989
Feb 5, 2021
user54508
U
H
Blown head gasket
hogue676
Nov 20, 2020
Replies
2
Views
2,865
Nov 20, 2020
curtisfox
C
Robin Subaru EH 035 Valve Adjustments
Sidewinder Jerry
Oct 14, 2020
Replies
0
Views
1,060
Oct 14, 2020
Sidewinder Jerry
Differnt sized spark plug holes in cnc cylinder heads
stevennf94
Oct 5, 2020
Replies
0
Views
689
Oct 5, 2020
stevennf94
Bottom end leaking oil
Tom74
Jul 19, 2020
Replies
2
Views
1,137
Jul 19, 2020
Tom74
N
Bad cylinder scoring.
Niksan258
Jul 12, 2020
Replies
1
Views
929
Jul 12, 2020
Bikeguy Joe
Cylinder Head Lapping Question
rohmell
May 14, 2011
Replies
18
Views
11,571
Mar 30, 2020
kelly dean
New cylinder type
lewdog7431
Nov 9, 2019
2
3
Replies
46
Views
10,206
Jan 17, 2020
kelly dean
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Forums
Motorized Bicycle Mechanical Components
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