Heads and Cylinders

All about your porting, compression, rings, cylinder and piston modifications to your bicycles engine

Sticky threads

BarelyAWake
  • Sticky
The Basics, Port & Polish and Port Matching
Replies
98
Views
105,188
Porting newb
P

Normal threads

H
Blown head gasket
Replies
2
Views
165
curtisfox
C
LR Jerry
Robin Subaru EH 035 Valve Adjustments
Replies
0
Views
267
LR Jerry
LR Jerry
stevennf94
Differnt sized spark plug holes in cnc cylinder heads
Replies
0
Views
125
stevennf94
stevennf94
Tom74
Bottom end leaking oil
Replies
2
Views
495
Tom74
Tom74
N
Bad cylinder scoring.
Replies
1
Views
205
Bikeguy Joe
Bikeguy Joe
rohmell
Cylinder Head Lapping Question
Replies
18
Views
7,216
kelly dean
kelly dean
A
3rd transfer port plz help
Replies
9
Views
878
Adam E
A
BenchDweller
Are CDH Power performance heads any good?
Replies
0
Views
421
BenchDweller
BenchDweller
lewdog7431
New cylinder type
Replies
46
Views
3,063
kelly dean
kelly dean
breath_easy13
How to remove governor and oil sensor on Predator 212
Replies
2
Views
3,107
breath_easy13
breath_easy13
javy mcdees
heads and cylinders after 3000 miles
Replies
9
Views
1,007
javy mcdees
javy mcdees
J
oil on top of cylinder head
Replies
2
Views
523
Jurney
J
exokinetic
What Compression Reading Should I Get?
Replies
7
Views
5,723
lewdog7431
lewdog7431
A
Scratched cylinder and piston?
Replies
4
Views
714
Greg58
Greg58
chmn22s
what size cc now
Replies
3
Views
837
chmn22s
chmn22s
R
Cylinder Porting
Replies
7
Views
2,186
javy mcdees
javy mcdees
Bikeguy Joe
Transfer Port Modification- Pictures and results here.
Replies
238
Views
86,856
javy mcdees
javy mcdees
lewdog7431
broken rings
Replies
4
Views
504
Venice Motor Bikes
Venice Motor Bikes
J
dio reed porting results
Replies
3
Views
1,115
jrok96
J
D
GT90 Conversion Kit
Replies
7
Views
2,893
John420jones
J
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