ONLY motorcycle and
EO Service available for Honda, KTM,
Yamaha, Suzuki and Kawasaki off road and dual sport
Around the world ENGINES ONLY is known
for our mini bike and small bore parts catalog. Locally
around the San Francisco-San Jose area we are also
known for our full size dirt bike motor rebuilds,
maintenance and performance upgrades.
Our expert motor technicians can perform simple tune
ups or complete motor rebuilds. Oil changes to race
bike preparation we can keep your bike ready for
your next adventure. Call to schedule an appointment
to keep your bike running its best.
KLX140 pipes now
Big Bore Kit
up your KLX140 and 140L.
We have been working on the KLX140 since before they
were released. 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. Our big bore kit makes more power and
is the most reliable kit made for the KLX140 motor. This bike is wicked fun.
what Dirt Rider Magazine said about our motor.
DYNO of our KLX160 motor kit click
Complete race ready heads in stock.
Big valve hiflow heads with competition seats and
This is the head your competition is not telling you
stock bore HiCompression pistons in stock. $249
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.
HONDA CRF150R 170cc kits in stock
DYNO runs show 27.5 Horsepower
and 13.5 pounds of
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
TTR125 and 230
Honda CRF80F, 100F, 150F, 150R soon, 230
Suzuki DRZ125L Kawasaki
Big Bore Kits, 250cc,
Outlaw exhaust systems, AMA legal
32mm Mikuni intake kits complete
Big Bore Kits, 190cc,
Outlaw exhaust systems, AMA legal
Non linkage REAL shift lever
225cc Big Bore motor kit.
Bolt on. Runs on pump gas.
Now get 225cc and monster torque with electric
CRF 150F Big Bore motor kit. ENGINES ONLY 250cc
Ultimate kit. GO BIG
out the review of our CRF230f- 250cc Big Bore Kit
from the people at:
CRF230L and CRF230M Competition
Big with this sleeper kit
120cc Big bore kit 11 horsepower from your 80
Click here for more info
190cc Big Bore kit
motor kits run on 91 octane pump gas.
125 Big Bore kit
The proof is in the power.
10.5:1 compression ratio, produces 16 horsepower
with our carb and Outlaw pipe.
Includes cylinder resleeve / piston, rings, clips
/ gaskets / performance camshaft / performance
With cylinder and camshaft exchange $799.95 Outright no exchange $999.95
DRZ190 trainer for 5 time GNCC champion /AMA
National Hare Scrambles champion / Factory Suzuki
rider Rodney Smith.
Great article about Rodney. click
Series high pipes
Outlaw pipes are built
and finished in the United States.
megaphone style pipe produces the best horsepower
and torque in all RPM ranges.
More bottom end and more top end.
All our high
pipes include a tuned head pipe and spark
4" tunable plates (CA 96 DB legal)
disperses noise radially with
no loss in power
guard for enhanced rider protection
Our pipes are
Available for Honda
XR / CRF80,100,150,230, Yamaha
Kawasaki / Suzuki
Now $349.95 +++Competition
pipe now available for CRF80F, 100F, 150F
and 230F, does not fit "L".
track, supermoto and road racing applications.
This pipe makes lots of power.
Includes: Stainless steel pipe and all mounting
+++Competition use only.+++
dyno charts. CRF150/175cc
Engine Performance Kits
All EO performance kits run on
standard 91 octane pump gas.
|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
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 $124.95
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.
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, 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
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.
- (408) 275-6300
- (408) 342-6867
- Postal address
- 1870 Stone Ave. San Jose, CA 95125
- Electronic mail
- General Information: firstname.lastname@example.org
Customer Support: email@example.com