You need a multimeter to measure the voltage drop, pennies to buy. Fully charge the battery. Take a note of the voltage after its "charged". If the battery is in good condition it will keep 12v (normally closer to 13v) overnight. Check it again the next day. If its dropping off too much then your wasting your time using it. Hylife has wrote some great guides on this throughout the forum, look them up if your stuck.
As for compression, again pennies to buy. They have a rubber tube with a spark plug thread adapter. On the other end is the guage.
Otherwise your just stabbing in the dark. If your interested in doing your own work then these tools are a necessity. If your not, take it to a mechanic.
If you have fuel (carbs), a spark (battery through to coils) and squish (compression) then you have something that will fire. One (or more) of those elements is missing.