I think you can use a pokeradar, but if you can't, migration always works!
Mankey evolves into Primeape by leveling up to level 28.
You can catch one at Route 225 or at Route 226 (using the PokeRadar).
Mankey is a pure Fighting-type Pokemon.
use your pokeradar around survivalarea and fight area tip: some times it will be a primeape.
Attention! there are honey trees they are orange and also its not on honey trees, you have to migrate from leaf green and firered
you can find a mankey on route 1 and 2
Mankey evolves into Primeape at level 28.
Mankey evolves at level 28.
You get mankey in Pokemon yellow by going to the grass on the way to the Pokemon league. It is going to be from level 3 to 5.
you trade it from another Pokemon gameyou can not get mankey on heart gold or soul silver yoU have to get him by migrating
mankey evolves at level 30-35
Mankey evolves into Primeape at level 28