How to adjust oil flow to homelite 3514c. UT10640.
Chainsaw oil pumps are fairly simple affairs, to increase oil flow you obviously cannot increase the engine speed, so you increase the throw of the pump shaft, so the pump shaft not only rotates, it moves back and forth ( the throw ) so the back of the pump shaft is cut off at an angle, the adjuster screw sits on the back of the shaft, so now when it rotates it moves in and out due to this angle, so the close the screw is to the centre of the shaft the lesser the throw, the further out the bigger the throw, so unscrewing the adjuster ( anti clockwise ) increases the flow, and visa versa.
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