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Dirt bike mods, performance & tech info from Rich Rohrich & Eric Gorr.
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Sticky
Article
Motorcycle Myth # 5 - You need big ports to make big horsepower
Rich Rohrich
Jun 23, 2014
Replies
21
Views
16K
Jan 2, 2021
Rich Rohrich
Sticky
Article
Motorcycle Myth #4 – Unleaded fuels make less power
Rich Rohrich
Jun 17, 2014
Replies
8
Views
8K
Feb 22, 2022
RM_guy
Sticky
Article
Motorcycle Myth # 3 - Adding Mothballs to your fuel will increase the octane
Rich Rohrich
Jun 17, 2014
Replies
6
Views
9K
Jun 26, 2020
Rich Rohrich
Sticky
Article
Motorcycle Myth #2 Summoning the gods of combustion speed
Rich Rohrich
Jun 17, 2014
Replies
6
Views
5K
Nov 3, 2023
Rich Rohrich
Sticky
Article
Motorcycle Myths : #1
Rich Rohrich
Feb 20, 2014
Replies
7
Views
7K
Jan 2, 2021
Rich Rohrich
The End of the 2 Stroke Guessing Game
jaguar
Mar 26, 2024
Replies
0
Views
23
Mar 26, 2024
jaguar
Poll
Looking for opinions on aftermarket plastics
MikeT
Mar 23, 2024
Replies
0
Views
37
Mar 23, 2024
MikeT
Help
what engines can fit into a Suzuki rm85 frame without much modification??
GGabe
Feb 22, 2024
Replies
0
Views
117
Feb 22, 2024
GGabe
T
Help
Jr50 1st gear mod on 78?
ThatKidAlex
Feb 18, 2024
Replies
0
Views
48
Feb 18, 2024
ThatKidAlex
T
2 Stroke Engine Oils + Combustion
jaguar
Feb 14, 2024
Replies
0
Views
62
Feb 14, 2024
jaguar
Engine Oils and Needed Ignition Timing
jaguar
Jan 6, 2024
Replies
5
Views
254
Apr 2, 2024
jaguar
2 Ways to Run Lean Although the Main Jet is Correct
jaguar
Jan 2, 2024
Replies
0
Views
103
Jan 2, 2024
jaguar
C
TPS, YZ250
casey_robert
Dec 19, 2023
Replies
3
Views
206
Dec 20, 2023
RM_guy
Engine Oil Combustibility
jaguar
Nov 22, 2023
Replies
0
Views
107
Nov 22, 2023
jaguar
Does More Oil = More Power?
jaguar
Nov 2, 2023
Replies
0
Views
258
Nov 2, 2023
jaguar
P
Please some help guys
PanosTsis
Oct 30, 2023
Replies
1
Views
118
Oct 30, 2023
RM_guy
2014 yz450f injector sizing for mod motor
blackbeard_lives
Oct 30, 2023
Replies
0
Views
114
Oct 30, 2023
blackbeard_lives
Selecting Engine Oil By Viscosity
jaguar
Oct 26, 2023
Replies
4
Views
434
Oct 29, 2023
jaguar
K
Help
Klx125 top end troubles
KTMkid
Oct 16, 2023
Replies
12
Views
359
Dec 20, 2023
Rich Rohrich
A
Which oil should i use?
appelkatapulten
Oct 13, 2023
Replies
1
Views
155
Oct 13, 2023
truespode
Dragonfly 2 Stroke Software Feedback
StrokedTater
Aug 29, 2023
Replies
1
Views
340
Sep 8, 2023
jaguar
D
Crf250R Jetting.
DieselDick
Aug 29, 2023
Replies
0
Views
143
Aug 29, 2023
DieselDick
D
S
06 crf450r breather hose help.
sean450r
Jul 31, 2023
Replies
0
Views
226
Jul 31, 2023
sean450r
S
S
Question
Help to diagnose for stroke stalled won’t start clicks
Stnick89
Jul 22, 2023
Replies
1
Views
221
Sep 16, 2023
Clark Jeff
A
Question
New Dirt Bike Owner- 2023 KLX230R- First time Rider. Suspension question.
abraki94
Jun 21, 2023
Replies
2
Views
228
Jun 22, 2023
abraki94
A
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