well no. factory has a setting to follow if its all original engine. I have yet to see someone time an engine by ear and its to factory spec. almost every time it will be advanced too far. you don't need a timing light to time them . I have timed piles of these old tractors . seldom use a light and when I check my timing against a light it is right on. you can either use a piece of paper or go by the spark snap. get the engine on compression at TDC then line up the timing marks where they should be. then loosen the distributer hold down bolts a bit. then turn the ignition on and rotate the distributor clockwise a bit. then when you start rotating it counter clockwise you will hear the spark snap! that's where you tighten the distributor down.
the other way is to not have ignition on and turn distributor clockwise a bit then put apiece of thin paper between the point contacts. the slowly turn distributor counter clockwise while slightly pulling on paper. the point where the paper pulls out is the spot to tighten the distributor down. been doing this for years and years, foolproof. plus you will see how easy starting it will be. plus make sure your points are set to spec. first before setting timing. then you adjust your carburetor. and another thing... make a small chisel make or punch mark on the housing where the factory setting is , then when you want to move it a couple degree's which is probably only a 1/8" movement of distributor. you have your reference point. other wise you have no idea where your at. lots of times they are marked already.