BB, lets start with the basics. Fuel,fire,air. got to have all three.......and at the right time (fire) Air is a given.....to make sure remove the air cleaner cover and check the filter. Fire.....pull a plug and stick it in a plug wire, lay the plug on the engine so you can see the electrode and have someone turn the mill over while looking for spark at the electrode. You should have it. We will get back to this in a moment. Fuel....pump the gas pedel or linkage and look down the carb throat, you should see gas.
Ok, here we go...
got air,fire no fuel......pour a LITTLE gas in the carb and try to start. If runs and dies look to the fuel system. (fuel pump, hole in line,dirty carb,or no gas in the tank. %) ;D
got air, fuel, no fire.....coil,coil wire,rotor,cap,points,plugs or electronic ign box. Also have someone turn the mill over with the dist cap off to make sure the rotor turns. (if not, timing chain broken)
got air,fuel,fire.....The question is now timing, (firing at the right time) Little more complex for you. Have to determine #1 Top dead center,Pull dist cap and determine that rotor is pointed at #1 terminal on the cap. If not maybe timing jumped a tooth or dist needs to be turned a little to line up to get it started. If so then a timing tune-up will need to be done to get it where it needs to be.
Let us know how you do and what you come up with.
