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Questions & Answers
Very difficult to pull starter rope why??
This could be a lot of things. IF the fuel mixture is not right then the wear on the engine is excessive. Take the spark plug out and see if it is easier to pull. IF it is then the compression is too high and this could be from timing. If neither or those work, the clutch might be bad.
What causes a polan chain saw to **** back when i pull the rope
Dorothyjack: It sounds as though your magneto has gone out of timing. Between the flywheel and the drive shaft there is a small square key that keeps the flywheel from slipping on the driveshaft. The spark coming from the magneto is not causing the spark plug to fire at the exact time it is supposed to. You will need to remove the side cover from the motor, and check to see if the slot in the flywheel and the slot in the driveshaft (where the square key fits) are aligned exactly. if those two slots are not aligned (even a little bit) the saw's engine timing is off. This is caused by the chain being stopped suddenly while you are cutting (for instance if the chain pops off of the chain bar. it will be necessary to remove the flywheel (using a flywheel puller) and replace the key. then reassemble the saw making sure the chain tension is correct and that the magneto to flywheel spacing is correct.
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