motorcycle engine parts oil leakage showed two phenomena

two wheel cub motorcycle oil leakage showed two phenomena:
1, motorcycle fuel tank spills quickly. Overflow pipe leakage phenomenon quickly, sometimes too quickly on the balance pipe leak, causing the fuel into the engine combustion chamber, cylinder flooded vehicle can not be started. Cause more for:
(1) there is a large dirt stuck float chamber; (2) the float spill damage; (3) the float in the float pin dysfunctional. The solution is: clean needles and float into the oil pipeline, the float can be replaced if damaged, can be thrown out after the float in gasoline knot with a soldering iron.
2, slow permeability. Phenomenon a few hours after the motorcycle parked a few drop of the overflow pipe to the frequency of the slow drip. Failure to float needle or float needle seat damage, resulting Mifengbuyan.