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April 1st 2010 marks 20
years of business for Engines Only.
All of us that are part of
the EO family would like to say thank you to
our customers, friends, racers, product testers,
suppliers and everyone that has been apart of our
history. With racers from around the globe using EO
products we are proud to continue building products
that have proven to be competitive and reliable
components in your motorcycle. Thank you.
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KLX140 pipes now
in stock
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Wake
up your new KLX140 and 140L.
We have been working on the new KLX140 since early
December and are pleased with our progress. Our high
compression 160cc Big bore kit,
cam and spring kit, Mikuni intake kit with custom
throttle cable and our pipe have produced some great
results. This bike is wicked fun.
DYNO of our KLX160 motor kit click
here |
CRF150R
Complete race ready heads in stock.
Big valve hiflow heads with competition seats and
valves. $1199.95
This is the head your competition is not telling you
about.
CRF150R
stock bore HiCompression pistons in stock. $249
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Our
new Outlaw series low pipe for DRZ125's.
All Stainless construction for the most durable pipe
your money can buy.
This pipe makes power. Great addition to our big
bore and intake kits.
This is the pipe you need to win races.

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HONDA CRF150R 170cc kits in stock
DYNO runs show 27.5 Horsepower
and 13.5 pounds of
Torque
Whats on
the ENGINES ONLY CRF150R Big Bore 170cc race bike.
Applied Racing Clamps and clutch lever, Barnett clutch plates and
springs, Hlebo Bros revalved forks with heavy springs and Tungsten
DLC coated tubes and hard anodized axle castings and forkcaps, polished and hard anodized shock body with revalve and heavy
spring, EO Megacycle billet cam with custom valve springs with
titanium retainers, EO 170cc
Ultimate Big Bore Kit with forged racing piston, EO Outlaw series
slip-on muffler with spark arrester,
EO Tokyo Mods
modified and jetted CRF150R carb, EO RoostMX graphics kit, Moto and
Supermoto wheels with Talon hubs and Excel rims by A&A Racing,
EO Steahly flywheel weight and a bunch of little stuff and lot's of
sweat from some great industry people. |

Fits CRF150 & 230F and CRF150R |

EO Shroud Graphics $59.95 |

Fits DRZ/KLX125 in Blue and Yellow |
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Yamaha
TTR125 and 230
Honda CRF80F, 100F, 150F, 150R soon, 230
Suzuki DRZ125L Kawasaki
KLX125 |
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YAMAHA
TTR-230 
Big Bore Kits, 250cc,
Outlaw exhaust systems, AMA legal
32mm Mikuni intake kits complete
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SUZUKI
DRZ-125 
Big Bore Kits, 190cc,
Outlaw exhaust systems, AMA legal
Non linkage REAL shift lever
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2006-08
CRF150F
225cc Big Bore motor kit.
Bolt on. Runs on pump gas.
Now get 225cc and monster torque with electric
start. $599.95
More
info |
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2003-2005
Ultimate
CRF 150F Big Bore motor kit. ENGINES ONLY 250cc
Ultimate kit. GO BIG
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Check
out the review of our CRF230- 250cc Big Bore Kit
from the people at:
Fits 2008
CRF230L and CRF230M Competition
use only. |
CRF150R Expert fork kits for your
CRF150 and 230.
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CRF150
and CRF230 Fork kit
This is the complete kit
for your front end upgrade. Adding stiff springs to
your stock forks is not the same as an ENGINES ONLY
CRF150R fork conversion kit.
We take brand new Showa forks and revalve and
respring to your weight and riding style, we
include a brake adapter plate so you can use your
CRF150F caliper instead of the single piston CRF150R
caliper, steering stop plate, long brake hose,
CRF150R
fender and screws (your 150F fender will bottom on
your tire), CRF150R number plate, fork guards and
screws, axle with nut and spacers along with
modified CRF150R triple clamps, bearings and bolts.
This is the only kit that is complete and
ready to bolt on. This is not a buy your fork tubes
on E-Bay and spend the next six weeks looking for
parts to put you bike together. This is complete and
ready to ride kit and includes professional
suspension shop tuning for you.
Yes you can install this kit after dinner one
night and ride the next morning. $1800.00
complete, Yes complete you do not have to buy
one extra screw or machine anything. Just install
and ride. |
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Go
Big with this sleeper kit
CRF/XR80
120cc Big bore kit 11 horsepower from your 80
Click here for more info
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Suzuki/Kawasaki
DRZ/KLX 125
190cc Big Bore kit
All EO
motor kits run on 91 octane pump gas.

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Complete
DRZ/KLX
125 Big Bore kit
The proof is in the power.
187.80cc,
10.5:1 compression ratio, produces 16 horsepower
with our carb and Outlaw pipe.
Includes cylinder resleeve / piston, rings, clips
/ gaskets / performance camshaft / performance
valve springs.
With cylinder and camshaft exchange $799.95 Outright no exchange $999.95
f EO
DRZ190 trainer for 5 time GNCC champion /AMA
National Hare Scrambles champion / Factory Suzuki
rider Rodney Smith.
Great article about Rodney. click
here
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EO_OUTLAW
Series high pipes

Outlaw pipes are built
and finished in the United States.
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Our true
megaphone style pipe produces the best horsepower
and torque in all RPM ranges.
More bottom end and more top end.
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All our high
pipes include a tuned head pipe and spark
arrester..
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SuperTrapp
4" tunable plates (CA 96 DB legal)
disperses noise radially with
no loss in power
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Aluminum heat
guard for enhanced rider protection
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Our pipes are
stainless steel.
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Available for Honda
XR / CRF80,100,150,230, Yamaha
TTR125,
Kawasaki / Suzuki
DRZ/KLX125.
Now $349.95 +++Competition
use only.+++
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OUTLAW
series low
pipe now available for CRF80F, 100F, 150F
and 230F /L.
Dirt
track, supermoto and road racing applications.
This pipe makes lots of power.
Includes: Stainless steel pipe and all mounting
hardware. $349.95ea
+++Competition use only.+++
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CRF230/250cc
dyno charts. CRF150/175cc
dyno charts.
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Engine Performance Kits
All EO performance kits run on
standard 91 octane pump gas.

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CRF and XR 80, 100, 150, 230, 250 and 400 PoweRing.
Includes all hardware for easy bolt on installation.
This exhaust end fits on your stock XR or CRF pipe in place of the stock
baffle. Increases power by being less restrictive than the stock baffle.
No drilling or cutting required, it bolts right on.
Remove your baffle and mount a less restrictive EO PoweRing.
Our 12 plate exhaust is adjustable to meet AMA and CA 96db noise
requirement.
Plate type spark arresters disperse noise radially for quieter operation
and avoid the clogging of screen type spark arrestors.
Increased performance and an inexpensive alternative to high priced
"Exhaust Systems". Now only $99.95 |
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Our Mission
To provide the highest quality, most reliable products in a timely and
efficient manner so that you are smiling every time you ride your bike.

Company Profile
ENGINES ONLY was started in 1990 By Frank Nye who was prodded by fellow dirt
track riders to make quality big bore kit for the then standard training bike
the Honda XR100.
Our first three motor kits went to Bubba Shobert, Wayne Rainey and Kenny
Roberts. While we still sell most of our parts and motor services to the
professional racing community our products are designed for use on regular pump
gas and are meant to be reliable and long lasting and stand up to the abuse of
training, trail riding or racing. Our motor components make great torque and
have a wide usable powerband. All of our products are parts that we have
personally ridden and tested for many hours so you can trust them to perform for
you.
ENGINES ONLY continues to develop, test and provide quality products to the
minibike community for Honda, Yamaha, Suzuki and Kawasaki motorcycles. We intend
to bring new and innovative products to production as the industry evolves and
expands with future four stroke minibikes.

Contact Information
- Telephone
- (408) 275-6300
- FAX
- (408) 342-6867
- Postal address
- 1870 Stone Ave. San Jose, CA 95125
- Electronic mail
- General Information: enginesonly@yahoo.com
Sales: enginesonly@yahoo.com
Customer Support: enginesonly@yahoo.com
Webmaster:
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