« previous next »
Pages: [1]   Go Down

Author Topic: CB500 Spark Plug Helicoil Thread Size  (Read 1609 times)

0 Members and 1 Guest are viewing this topic.

Offline MaaseyRacer

  • Enthusiast
  • **
  • Posts: 194
    • Fuelist
CB500 Spark Plug Helicoil Thread Size
« on: May 14, 2010, 12:02:06 PM »
As the topic title states, does anyone know the size of the stock spark plug threads so I can heilicoil them.

Thanks.
Logged
1961 CB72
1961 CB77
1962 CB77
1962 CB77
1965 CB160
1970 Triumph Bonneville
1972 Honda CB450
1975 Norton Commando

Offline MaaseyRacer

  • Enthusiast
  • **
  • Posts: 194
    • Fuelist
Re: CB500 Spark Plug Helicoil Thread Size
« Reply #1 on: May 14, 2010, 12:20:46 PM »
Nevermind I just phoned NGK Support and they hooked me up. 

12mm x 1.25

Just incase anyone else was wondering.
Logged
1961 CB72
1961 CB77
1962 CB77
1962 CB77
1965 CB160
1970 Triumph Bonneville
1972 Honda CB450
1975 Norton Commando

Offline tino montreal

  • Full Member
  • *
  • Posts: 67
Re: CB500 Spark Plug Helicoil Thread Size
« Reply #2 on: December 21, 2013, 03:11:04 AM »
Old post I know, but what about the length of thread? For helicoil purposes?
Logged
Pages: [1]   Go Up
« previous next »