Chainsaw Repair

There is no need to keep puting the bar and chain on to solve this. Reassemble everything to no bar/chain or cover and the drum should spin fairly easily even with the oiler assembled correctly. If it does not spin easily listen or feel as best you can for any rubbing or scraping and reference where you are feeling it and it may lead you to the problem...ie shoes not retreating correctly will be rubbing on the outside of the drum.......missing spacers will be a rubbing felt through the outer face of the drum most likely near the rim sprocket assembly. I am not extremely familiar with the oiler system on this saw but incorrect engagement should be easily determined by this testing as well? Maybe someone could elaborate more as to how this being incorrect would feel...... and a shot in the dark.... how tight is the chain when this is happening?