More Power RacingFree ShippingMore Power Racing carries the full line of Yoshimura Motor Kits.  We offer an online catalog, free shipping, and we will beat any web price, period!

Yoshimura Motor Kits

Yoshimura Motor Kits

More Power Racing carries the full line of Yoshimura Motor Kits. We offer an online catalog, free shipping, and we will beat any web price, period!

Products

DR-Z400/KLX400 2000-2004

Yoshimura Motor Kit

Over the course of three seasons on the WORCS circuit, countless hours of track time, data logging, and dyno testing the Yoshimura DRZ Big Bore Kit has established itself as the marquee motor for power and reliability. With 50 rear wheel horsepower, this motor offers superior traction, instant-on throttle response, massive low-end power, a huge increase in the mid and eye-watering top end perfect for Supermoto or Off-Road.

Price
92mm x027" Head Gasket45010-00 $31.95
Heavy Duty Clutch Kit45014 $164.95
92mm Cylinder w/Core45008 $230.95
92mm Piston Kit45001 $249.95
Stroker Crank w/Core4500D $289.95
Stroker Crank NO Core4500E $620.00
Kit Parts Only w/Core4500C $1390.00
Kit Assembled w/Core4500B $1875.00
Kit Assembled w/ Pro Series Exhaust4500A-SA $2495.00

RM-Z250/KX250F 2004-2005

Yoshimura Motor Kit

Yoshimura offers motor kit service for the Suzuki RM-Z250 / Kawasaki KX250F. The motor kit includes cylinder head port and polish, valve job and cylinder modification to the top end. The bottom end receives complete blue print and Yoshimura’s transmission upgrade. The Yoshimura transmission allows the power to flow with ease. With this kit your RM-Z / KXF will get all the traction and power to the ground.

Price
Completely assembled engine2180-4900 $1595.00