8143 Connecting Rod Kit Yamaha YZ125 1997 2000

Features: Heavy-duty OE replacement connecting rods. Certified 8620 AISI steel provides superior strength. Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to level of 58-62Rc. Features the latest in caged needle roller bearing designs for high rpm longevity. Uniquely designed big end uses strategically located side scalloping and vent slots to minimize bearing race distortion at high rpm. Small ends are double drilled to supply extra lubrication and cooling to the wrist pin bearing, which is especially important when the piston crown is close to the wrist pin bearing. Shot-peened to eliminate surface stress risers and to smoothly blend together the rod forging's radiuses. Double honing produces an ultra-round bearing surface for reliability at high rpm. Most rod assemblies are sold complete with rod, crank pin, crank pin bearing, top-end bearing and silver-coated bronze phosphor thrust washers. Made in the USA. Compatible with Hot Rods and OE crankshafts.. Connecting Rod Big End I.D. 29.000 mm Connecting Rod Big End Width: 16.950 mm Connecting Rod Center-to-Center: 105.000 mm Connecting Rod Small End I.D.

20.000 mm Connecting Rod Small End Width: 16.950 mm Thrust Washer Thickness: 1.000 mm Pin Length: 54.300 mm Kit Includes:

• Connecting Rod
• Crank Pin
• Crank Pin Bearing
• Wrist Pin Bearing
• Thrust Washers.