YSR Featured

12mm reed spacer for the YSR50 - Includes extended intake manifold bolts with washers.  Reed valve spacers lengthen the intake tract and improve fl...

( If you remove the oil pump you need this! ) Brand New Design! Billet aluminum Oil Block off plate for your YSR.  We also have an oil block off p...

Finally, no more floppy rubber boots. These west coast machined billet adapters will not only hold up to years of abuse, but they'll also work with...

Universally compatible with every machine with an air filter box. Drill a hole and pop these in! Sold in a package of 12! Each "mod" has a foam fil...

1/4 turn throttle cable for YSR50. Only works with 1/4 turn throttle! 

Includes: 1 Head Gasket 1 Base Gasket 1 O-Ring Don't forget some ProCure Gasket Sealant !