Combine water, shrimp, konbu, bones, pepper, soy sauce and salt in large pot to prepare soup stock; bring to boil over high heat; lower heat and simmer 30 minutes; strain.
Cook noodles according to package directions.
Pour into colander; drain and place noodles in soup bowls.
Pour hot soup stock over noodles and garnish with green onions, char siu and kamaboko.
Notes
Cooked bean sprouts or cabbage may be placed atop the noodles, if desired.