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4 Stroke Bicycle Engines & Kits
4 stroke engine kits are great if you want reliability or do not want to mix your oil and gas. Learn from each other how to get the most out of your 4 stroke bicycle engine
Forums
Bicycle Motor
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3 piece wide crank set won't tighten without crushing bearings
worksuxxx
Aug 27, 2013
Replies
15
Views
3,830
Sep 3, 2013
maniac57
A
HF 79cc cam shim?
atombikes
Sep 2, 2013
Replies
3
Views
3,698
Sep 3, 2013
culvercityclassic
C
4g clutch engages 4400 rpm?
worksuxxx
Aug 21, 2013
Replies
6
Views
1,848
Sep 3, 2013
worksuxxx
5/8 shaft with 4g problems
worksuxxx
Sep 2, 2013
Replies
4
Views
1,646
Sep 3, 2013
worksuxxx
E
Proble adjusting carb on Huasheng 4 stroke kit kit
evilball
Aug 31, 2013
Replies
0
Views
1,685
Aug 31, 2013
evilball
E
Honda GS190 damage question
Gbrebes
Aug 28, 2013
Replies
2
Views
1,166
Aug 30, 2013
buba
B
B
Im ready to make the switch to 4 stroke..Couple q's..
borntofli
Aug 22, 2013
Replies
2
Views
1,181
Aug 27, 2013
jburr36
C
HF 79cc with EZM clutch centermount build - how to gear lower
chrisnbush
May 5, 2013
2
Replies
34
Views
9,016
Aug 21, 2013
chrisnbush
C
Chinese RT carb on a briggs flattie
maniac57
Aug 18, 2013
Replies
6
Views
2,365
Aug 20, 2013
maniac57
4g drive for next build?
worksuxxx
Aug 12, 2013
Replies
5
Views
1,643
Aug 20, 2013
GearNut
You seen Go Karts USA? man...
KCvale
Aug 16, 2013
Replies
3
Views
1,525
Aug 19, 2013
KCvale
A
HF 2.5 Intake Manifold hole spacing
atombikes
Aug 19, 2013
Replies
1
Views
960
Aug 19, 2013
chainmaker
Questions about using a HF 79cc engine
joelnotroll
Aug 10, 2013
Replies
9
Views
7,661
Aug 17, 2013
KCvale
J
4 stroke kit to love for 400$? or go 2 stroke?
jgf
Aug 15, 2013
Replies
4
Views
2,157
Aug 17, 2013
jgf
J
S
Flying Horse 5g Four Stroke, Good? Bad?
sly_wheelz
Aug 11, 2013
Replies
6
Views
2,891
Aug 17, 2013
scotto-
Lifan 125cc kits.. Any good
Krealitygroup
Aug 15, 2013
Replies
5
Views
3,632
Aug 15, 2013
Krealitygroup
Huasheng 142f with a 2 stroke exhaust?
worksuxxx
Aug 14, 2013
Replies
2
Views
2,733
Aug 14, 2013
KCvale
Replacing oil slinger on a 49cc Huasheng...
scotto-
Dec 20, 2011
2
Replies
29
Views
10,970
Aug 12, 2013
scotto-
Bikeberry 4 stroke kit = 23 mph on 29er?
worksuxxx
Aug 7, 2013
Replies
2
Views
1,810
Aug 11, 2013
worksuxxx
Vibration felt 5000-6000 rpm.
worksuxxx
Aug 8, 2013
Replies
1
Views
1,047
Aug 11, 2013
worksuxxx
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Bicycle Motor
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