Chino, Calif. - April 16, 2009 - Yoshimura has the answer for those wanting more for their Honda CRF50 motorcycle. Yoshimura's Bore Up Kit adds tons of torque and overall power everywhere by upping the displacement from 50cc all the way up to a whopping 88cc. This kit makes your CRF dirtbike roost! Want more? Check out the Racing Cylinder Head Kit too!

CRF 50 88cc Bore Up Kit includes:
• Die Cast Aluminum Nickacil bore cylinder. Ready for optional oil cooler kit, Larger fins for better cooling
• Yoshimura forged flat top piston with rings
• Yoshimura Billet ST-1 Camshaft
• Metal base and head gaskets. Hi compression head gasket (0.25")
• All necessary installation hardware and instructions

PN: 207-404-0000
MSRP: $357.50

CRF 88cc Yoshimura Racing Cylinder Head Kit

If you really want to go all out check out Yoshimura's Cylinder Head Kit for maximum power! The kit comes with Yoshimura's ST-1 Billet Camshaft and a whole lot more.

CRF 88cc Yoshimura Racing Cylinder Head Kit Includes:
(Note: Racing cylinder head can only be used with Yoshimura 88cc Cylinder Kit)
• Complete Yoshimura Racing Head with oversize valves
• Metal base and head gaskets. Hi compression head gasket (0.25")
• Includes cotters, retainers, and valve springs
• Die Cast Yoshimura generator and Tappet covers
• All necessary installation hardware and instructions
• Yoshimura ST-1 Billet camshaft
• 9.5:1 compression ratio

PN 257-404-2000
MSRP: $1,465.00

www.yoshimura-rd.com