First you find one of the snorlaxes left of celadon and the other one is right of vermillion, then you use your pokegear radio (if you don't have it shame on you) and look for the poke Flute song. Talk to snorlax with the poke flute song in the background and he/she will wake up and attack you in a grumpy rage! Snorlax is an annoying Pokemon to catch no matter how good you are so don't be afraid to just run away, there is another one....
Get the Pokemon flute from Mr.Fiji in Lavender town after you rescue him
Give them a Bitter berry, play the poke flute,or give them an awakening
After you get the pokeflute you turn it on and go to the sleeping snorlax and it wall wake up you will be able to fight it at level 50
use the pokeflute but if ur in heartgold or soulsilver, move the dot on ur radio to the top of the circle (pokeflute channel)
The radio will be your instrument to wake up the sleeping Snorlax. There's a certain radio station that plays the poke flute. When you face Snorlax, tune in to that station and let the Snorlax hear the flute for it to wake up.
wake up the sleeping snorlax in front of diglet cave with the pokeflute
Get the Pokemon flute from Mr.Fiji in Lavender town after you rescue him
Use a Pokeflute to wake it up and then u can catch it or run away from it!
Give them a Bitter berry, play the poke flute,or give them an awakening
its one of the radio stations in your pokegear. it says pokeflute
well you get a poke flute and go to the snolax wake it up and go throe the tunnel and there you are
Personally, I wake up after sleeping.
you can get there by going in the diglett cave after making the sleeping snorlax wake up.
You go to Lavender Town and travel to the top of the Pokemon Cemetery. At the top you will encounter a Marowak. Defeat it and there is a woman who gives you a Poke Flute. With it you go to the sleeping Pokemon and play it. It will wake it up and begin a battle with you.
there is no pokeflute in heart gold. to wake up snorlax use the pokeflute channel on the radio
get a radio card and play the poke flut song on you radio
In Pokémon Pokémon FireRed and LeafGreen you will encounter a sleeping Snorlax blocking the way. To wake him up you need to get the Pokeflute.