Namura Top-End Rebuild Kit for 2001-14 Polaris 400cc models - 88.89mm - NA-50026-4K 2007 KTM 525 XC 1987 Yamaha YSR50

1987 Yamaha YSR50

1989 Honda XR100

2013 Suzuki FS50

1997 Honda TRX90X Fourtrax

Namura Top-End Rebuild Kit for 2001-14 Polaris 400cc models - 88.89mm - NA-50026-4K 2007 KTM 525 XC 1987 Yamaha YSR50Namura Technologies Top End Rebuild Kit A Top End rebuild can help to improve the performance of your ride, keeping it running in peak condition. With the Namura complete Top End Rebuild Kit, rebuilding your Top End no longer expensive and painful Namura's Top End Kits include everything you need to get your ride operational again; pistons, a top end gasket kit and wrist pin bearings (where applicable) are all included in this convenient, time saving