norqui,
Have you observed that there is no spark? I mean by pulling the spark plug from the head, inserting it into the plug wire receptacle and laying the plug case against an engine metal part, while cranking the engine? You should be able to see some spark at the anode-to-electrode gap. Check both plugs that way. If no spark on either then it may not be the plugs, but do the easiest thing first ... get new plugs. If that doesn't work, there are several things to check. But first, change the plugs.
I may be assuming too much here. How many cylinders and how many plugs per cylinder does the bike have? We really need to know more about the bike to help much beyond "check for fire at the plug".
What brand, model and year bike is this? When was the last time any repair work was done on it and what was that repair? When was the last time any routine maintenance was performed and what was that maintenance?
Let's determine if you're really not getting fire before going to fuel, etc.