I do believe that you have to use cut on a tree just outside the north enterance to cycle road. there should be a house there. go in and talk to the person inside.
P.S. don't hold me to this, may be incorrect.
There is no Rock Smash HM in Pokémon Yellow.
on Pokemon yellow on Pokemon yellow
No, Porygon cannot learn HM Fly. In Pokémon games, HM Fly is typically associated with Flying-type Pokémon, and Porygon is a Normal-type Pokémon that does not have the ability to learn Flying-type moves through HM. Porygon can learn various other moves, but Fly is not one of them.
mew
The first HM that you are able to use outside of battle is the Cut HM. You get it from talking to the captain in the S.S. Anne.
You need a flying type that knows HM Fly
To my knowledge i don't think there is a waterfall in Pokemon yellow and it is quite irrelevant to the storline if there was one. If you mean a HM named waterfall...i think your on the wrong game, only pearl and diamond have waterfall HM...i think. There are only 5 HM's in Pokemon Yellow Flash, Cut, Fly, Surf, Strength.
There is no move deleter in Pokemon yellow... you have to keep the hm's that you learned your Pokemon
HM 2 i think
yes
You cannot delete HMs in Yellow. It is said in the game that HM moves are permanent. If you will need to use HM's such as flash and cut that are not too useful in battles, just teach it to Pokemons that you will not use in battles so that your main roster's skills will be strong moves.
You need a water Pokemon and the surf HM