Quick view Honda 1979–1985 Honda XL100S Cylinder Boring Service Compare MSRP: $100.00 - $300.00 1979–1985 Honda XL100S Cylinder Boring ServiceCommon engine problems are low compression, oil burning, poor performance, or visible cylinder wear.This service will restore compression, stop burning oil, increase horsepower and extend engine life... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List