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.
