The CRF250X is reliable and trusted as a great entry level machine. For this build we customized it for a shorter female rider while getting the power up. The stock 250X is really corked down, but the potential is there.
For the bikes with more time on them in need of a bit of a rebuild, Cylinder Works/Hot Cams made this bike as fast and strong as an R model with a few mods. Since we were doing a piston anyway we went with the Cylinder Works BB kit that just gives a bit more power and does not require any case modifications. The Air-box was cut open and pink wire cut for added revs on top.
We also removed backfire screen and here is the video link to show how easy that is to do. With the Air-box and carb all modified we were able to install our full Yoshimura exhaust.
We utilized the Applied Smog elimination kit and also had the odometer removed and R model front axle installed in place.
Jetting
CRF250X with opened up airbox and exhaust installed.
45 Pilot
42 Leak
170 Main
Needle (R needle) in #2 Honda #16203-MEN-671
Two turns out on Fuel Screw
Cylinder Works
www.cylinder-works.com
1mm Big bore Cylinder Kit 256cc
Includes Forged Vertex Piston and Top-End gasket kit
Hot Cams
www.hotcamsinc.com
Stage two cam
Supersprox
www.supersproxusa.com
Front Sprocket
Rear Gold Stealth Sprocket
Gold Enduro O-Ring Chain
All Balls
www.allballsracing.com
Carb Rebuild kiy
Yoshimura
www.yoshimura-rd.com
Full Exhaust system
Factory Connection
www.factoryconnection.com
Suspension rebuild and service. Bike was lowered 1/2 both ends for the shorter rider.
IMS
www.imsproducts.com
Core Footpegs
Larger Tank 3.2 gallon
DeCal Works
www.decalmx.com
Semi-Custom Graphics kit
Pre printed number plates backgrounds
UFO Plastic
www.ufoplasticusa.com
Full plastic kit
Works Connection
www.worksconnection.com
Factory II Stand
Front & Rear brake cap
Rotating bar clamp front brake
Steering stem nut
Radiator Guards
Chain Blocks
Full Clutch Perch
Dunlop Tire
www.dunlopmotorcycle.com
AT81 front 90/100-21
AT81 rear 110/100-18
Uni Filter
www.unifilter.com
Two-Stage Air Filter
TM Designs
www.tmdesignworks.com
Rear Chain Guide
Rear Disc & Caliper guards
Skid Plate
Hinson Clutch Components
www.hinsonracing.com
Full Clutch pack and outer cover
Moto Seat
www.motoseat.com
Custom Cool seat cover and cutting of the seat foam for shorter rider.
Motion Pro
www.motionpro.com
Titan Throttle Tube
Grip Glue
Renthal
www.renthal.com
604 Fat Bars
Dual Compound Grips
Tusk
www.tuskoffroad.com
Complete Wheel set
Oversized Rotor/Adaptor Bracket
Rotor rear
Hand guards with blinkers built in
Dual Sport kit
Pro Moto Billet
www.promotobillet.com
Kick-It Kick stand. Shortened for the shorter bike.
About Pro Circuit
Based in Corona, California, Pro Circuit Products, Inc. is a leader in off-road motorcycle and ATV exhausts and aftermarket performance parts. Started in 1978, Pro Circuit is the go-to shop for recreational riders and professionals for everything from suspension work to complete engine packages, and everything in between.
About Namura Technologies Pistons and Gaskets
Coming from decades of Powersports aftermarket manufacturing, Namura continues to impress riders and dealers alike with their aggressive development and innovative product design and manufacturing in MX and ATV Pistons and Gaskets. Based out of the suburbs of Minneapolis, Minnesota, Namura is taking piston quality and durability to another level.
