64mm TB Basic Big Bore Kit for YX/GPX/Zongchen 150/155/160cc Engines tbw0473 TBW0865 - Intake kitTBW0301 -

TBW0865 - Intake kitTBW0301 - Throttle cableTBW0125 - CarbTBW0863 - Air filterTBW0294 - Jet kit

It's much easier to install with no hassles of bleeding lines and you never have to worry about the loss of hydraulic fluid during a ride or race

Includes New O-rings

5mm x 75mm x 5

- Rear facing manifold kit

64mm TB Basic Big Bore Kit for YX/GPX/Zongchen 150/155/160cc Engines tbw0473 TBW0865 - Intake kitTBW0301 -Trail Bikes 170cc, 177cc, or 184cc Basic Big Bore Performance Kit for YX GPX Zongchen 150cc 155cc 160cc Engines Part Number: TBW9042 Description: All aluminum ceramic plated 64mm cylinder with skirt NEW We increased the skirt height and size on the lightweight high compression 64mm piston with rings, pin, & clips to increase reliability and service life (picture is not updated yet showing piston change) Head gasket kit includes the cylinder head o