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ATHENA racing 144cc kit for Yamaha YZ 125 motorcycle from 1997 to 2004
  • ATHENA racing 144cc kit for Yamaha YZ 125 motorcycle from 1997 to 2004

144cc ATHENA racing kit for Yamaha YZ 125 motorcycle from 1997 to 2004

P400485100029

The famous BIG BORE 144cc from ATHENA for Yamaha YZ 125cc motorcycles from 1997 to 2004.

Stage 1 engine preparation
€691.66
Quantity
Requires a delay of more than 20 days!

Description

Here is the best way to reliably upgrade your Yamaha YZ 125 - 1997 to 2004 from 37.5hp to 42hp!


The ATHENA BIG BORE with its large diameter of 58mm offers a good performance and torque gain over the entire range to your YZ 2T.


The kit consists of a very reliable ATHENA nicasil treated aluminum cylinder with corrected diagrams. A VERTEX grphité piston forged mono-segment steel.

 

WARNING: To assemble this kit on YZ 125 LC 1997-1998 models you need to replace the stock muffler with a year 1999-2003 version and for 1997-1999 models you need to order the stock springs 2 twists)


It comes with screws and gaskets, cylinder head, piston, unloading valves ... as well as the instructions as in the photo!

 

Mounts on Off-road (mx) Yamaha YZ 125 - 1997/2004

Product Details
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