Racer X Tested: Yamaha YZ 125
Film/Edit: Donnie Bales
As everyone knows the YZ125 is one of our favorite bikes for many reasons. The main reason is simply that the bike is just a ton of fun to ride. So, making it a bit faster can only make it even more fun. Sit back and enjoy some good two-stroke sounds.
Nearly every major product for this project can be obtained directly from Rocky Mountain ATV/MC: www.rockymountainatvmc.com 800-336-5437
Tom Morgan Racing www.morganracingengines.com 949-421-7112
Cylinder Porting
Head mod
Vertex Pistons www.vertexpistons.com 515-270-2302
Complete Piston kit
Cometic www.cometic.com 800-752-9850
Top-EndGasket Kit
FMF Racing www.fmfracing.com 310-631-4363
Fatty chrome
Shorty Silencer
MotoTassinari www.mototassinari.com 603-298-6646
V-Force 3 Reed Valve
Renthal www.renthal.com 877-736-8425
Front and rear Chain Wheels
Fat Bar 604 Bend
Works Chain
Grips
Uni Filter www.unifilter.com 714-535-6933
Two-Stage Air Filter
Dunlop Tire www.dunlopmotorcycle.com 800-845-8378
MX51 front
MX 51 rear
Tusk www.tuskoffroad.com 800-336-5437
Oversized Typhoon front rotor kit
Works Connection www.worksconnection.com 1-888-224-8718
Elite Clutch erch
Factory-4 Stand with extra bumps
Hour Meter and Mount
Formed Silicone Coolant hoses in Blue
High pressure radiator cap
VP Racing Fuels www.vpracingfuels.com 210-635-7744
C-12
DeCal Works www.decalmx.com 815-784-4000
Semi-Custom Graphics kit with #’s
Moto Seat www.motoseat.com 951-258-5229
Custom Cool seat cover
Rad MFG. www.radmfg.com 435-574-2537
Rad complete Signature wheel set
Klotz Synthetic Lubricants klotzlube.com 800-242-2489
R-50 Two-Stroke Pre-Mix
Race Tech racetech.com 951 279 6655
Suspension re-valve