Big Bore Kit

NEW BBR BBR 88cc Flat Top Piston Big Bore Kit


NEW BBR BBR 88cc Flat Top Piston Big Bore Kit

NEW BBR BBR 88cc Flat Top Piston Big Bore Kit   NEW BBR BBR 88cc Flat Top Piston Big Bore Kit

NEW BBR BBR 88cc Flat Top Piston Big Bore Kit. Convert your CRF/XR50 to an 88cc screamer with this complete kit. Everything is included to upgrade the performance of you mini-bike.

This kit uses your stock CRF/XR50 cylinder head. Aluminum BBR cylinder Special 52mm piston specially designed to work with your stock cylinder head's combustion chamber BBR special grind camshaft take full advantage of the large piston for great performance Special BBR tapered aluminum intake manifold adapts the large carb to the stock intake port size 18mm carb includes extra main and pilot jets for easy tuning Also includes CR style throttle, cable, air filter and top end gasket kit Installation Note 1: Throttle unit included with kit will only work with 7/8 handlebars and will not mount to stock XR/CRF50 handlebars. Installation Note 2: This kit will not work with the Honda XR/CRF70 or other big port cylinder heads. It is designed for the tiny combustion chamber of the OEM Honda XR/CRF50 cylinder head. The flat top piston dome will result in an extremely low compression ratio when combine with the XR/CRF70 type cylinder head.

The result is a motor that makes less horsepower than stock. BBR General Jetting Guidelines Chart BBR 88cc Flat Top Piston Bore Kit Instructions. Special 52mm piston specially designed to work with your stock cylinder head's combustion chamber.

BBR special grind camshaft take full advantage of the large piston for great performance. Special BBR tapered aluminum intake manifold adapts the large carb to the stock intake port size.

18mm carb includes extra main and pilot jets for easy tuning. Also includes CR style throttle, cable, air filter and top end gasket kit. Installation Note 1: Throttle unit included with kit will only work with 7/8 handlebars and will not mount to stock XR/CRF50 handlebars.

BBR General Jetting Guidelines Chart. BBR 88cc Flat Top Piston Bore Kit Instructions. Sorry, our items are NOT available for pick-up. No additional information at this time.

NEW BBR Fork Springs - DRZ/KLX125, 03-Present. NEW BBR Tall Seat Assembly - BBR CRF/XR50. NEW BBR Tall Seat Cover (Red) - CRF110/125F, 19 - Present. NEW BBR BBR KLX/DRZ110 143cc Big Bore Kit.


NEW BBR BBR 88cc Flat Top Piston Big Bore Kit   NEW BBR BBR 88cc Flat Top Piston Big Bore Kit