HOT RODS crankshaft kit for YAMAHA YZ 125, YZ 125 X from 2005 to 2021

HOT RODS offers this crankshaft kit for YAMAHA YZ 125, YZ 125 X from 2005 to 2021. A full rebuild replaces all the engine’s wear parts. This kit groups the parts needed (see contents) so nothing is forgotten and the engine is as good as new.

Why a complete kit?

The benefits:

• All the wear parts in one order.
• Much cheaper than buying the parts separately.
• Parts designed to work together.

Why choose HOT RODS?

Hot Rods crankshafts come assembled and trued: double-forged 8620 steel rod and hardened crankpin (58-62 HRC), a ready-to-fit bottom-end rebuild.

When should you replace the bottom end on your YAMAHA YZ 125?

Unusual vibration, a deep knock that follows engine speed or play in the con-rod: the bottom end needs a rebuild.

The manufacturer publishes no hour interval for this model: have the con-rod play checked at every piston change. Cross-Mania guideline: rebuild the bottom end every 2 to 3 top-end rebuilds.

Specifications and fitting tips

• Contents: Crankshaft, Gasket Set, Oil Seal Kit, Main Bearing, Seal Kit
• Displacement: 125 cm³
• Material: 4140 steel
• Supplied fully assembled with Hot Rods connecting rod
• Hot Rods crankshafts are factory-assembled to OEM specifications for OEM-equal or better performance

Cross-Mania tip: Check the cylinder and piston while the engine is open. On reassembly, follow the crankcase torque settings and make sure the crankshaft turns freely.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
YAMAHA YZ 125 2021
YAMAHA YZ 125 2020
YAMAHA YZ 125 2019
YAMAHA YZ 125 2018
YAMAHA YZ 125 2017
YAMAHA YZ 125 2016
YAMAHA YZ 125 2015
YAMAHA YZ 125 2014
YAMAHA YZ 125 2013
YAMAHA YZ 125 2012
YAMAHA YZ 125 2011
YAMAHA YZ 125 2010
YAMAHA YZ 125 2009
YAMAHA YZ 125 2008
YAMAHA YZ 125 2007
YAMAHA YZ 125 2006
YAMAHA YZ 125 2005
YAMAHA YZ 125 X 2020