You should be able to stop most of the leaks without rebuilding the motor. Couple things to keep in mind: if the oil tank is over-filled it will blow oil out the oil tank breather; if the rings are not seating properly it will blow some oil out the engine breather. All the other locations (with the exception of the case center joint) can be sealed by removing the cover or whatever, cleaning it and using Yamabond or Hondabond on assembly (Just don't use too much!).
These modern semi-hardening sealers will prevent most all leakage from old bikes.
If it's a low mileage motor or the owners kept the oil clean the sludge trap may not be dirty.
If you can't find the source of the leaks, clean the bottom of the engine then see where it's coming from.
These modern semi-hardening sealers will prevent most all leakage from old bikes.
If it's a low mileage motor or the owners kept the oil clean the sludge trap may not be dirty.
If you can't find the source of the leaks, clean the bottom of the engine then see where it's coming from.
