Wednesday, September 14, 2011

How long usually does a top end last on a YZ125?

8 Liter tank

2 tanks per week

32:1 fuel mixture with 94 pump fuel and Yamalube synthetic 2 stroke oil.

Trail ridden

Some snow riding



Wiseco top end, standard bore. Not many engine mods, and air filter maintenance and oil changes



10 points to the best answer,



Thanks..How long usually does a top end last on a YZ125?
Rebuild the top end (piston %26amp; rings) once a year to prevent any major damage.

At least remove the cylinder once a year to check service specs.

2 years without a rebuild and you're pushing your luck.