Z2 750 crank (Bossie the Kaw)

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
19 Mar 2017 08:19 #757118 by SWest
Replied by SWest on topic Z2 750 crank (Bossie the Kaw)
I'm going back in to make that one race fit easier. While spinning the crank I can feel a slight bind. Jeff said if this was a babbitt bearing crank it would be more critical. I noticed some chattering at low idle and the crank was walking around. You can see the wear marks at the end of the one clip. I have the potential of doubling the HP so this is a MUST DO.:whistle:
Steve

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
19 Mar 2017 16:27 #757165 by SWest

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
19 Mar 2017 21:35 #757185 by SWest

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
20 Mar 2017 13:06 #757238 by SWest
Replied by SWest on topic Z2 750 crank (Bossie the Kaw)
So much for the bracing. Another hole to fall into. Putting the lower end anyway.
Steve

Please Log in or Create an account to join the conversation.

More
20 Mar 2017 15:07 - 20 Mar 2017 15:08 #757243 by missionkz
Replied by missionkz on topic Z2 750 crank (Bossie the Kaw)
Back many years ago, when I lived in Detroit, I worked in a small moto speed shop that also did frame mods to Z1s and H2s.... they would ALWAYS, strip the frame clean, weld up the Z braces and what not, then send the frame out to be heat relieved/annealed, then repainted or powder coated.
Their claim was that welding the frame cold and just reassembling could add all kinds of stress points to the frame... causing possible failures later when out rockin' the dog.

Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Last edit: 20 Mar 2017 15:08 by missionkz.
The following user(s) said Thank You: mopguy

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
20 Mar 2017 21:21 #757271 by SWest

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
20 Mar 2017 22:02 #757274 by SWest

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
21 Mar 2017 11:43 #757317 by SWest

Please Log in or Create an account to join the conversation.

More
21 Mar 2017 11:52 #757318 by 531blackbanshee
Replied by 531blackbanshee on topic Z2 750 crank (Bossie the Kaw)
a lil closer!

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
The following user(s) said Thank You: SWest

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
21 Mar 2017 12:18 #757322 by SWest
Replied by SWest on topic Z2 750 crank (Bossie the Kaw)
May have the head on this afternoon. Gotta bring in that nasty exhaust system and clean it tonight. May be running by noon tomorrow.:unsure:
Steve

Please Log in or Create an account to join the conversation.

  • SWest
  • Topic Author
  • Offline
  • Sustaining Member
  • 10 22 2014
More
21 Mar 2017 19:54 - 21 Mar 2017 19:54 #757358 by SWest
Replied by SWest on topic Z2 750 crank (Bossie the Kaw)
I hope to have it running tomorrow. Looks like rain. :S
Steve
Last edit: 21 Mar 2017 19:54 by SWest.

Please Log in or Create an account to join the conversation.

More
21 Mar 2017 20:50 - 21 Mar 2017 20:55 #757368 by missionkz
Replied by missionkz on topic Z2 750 crank (Bossie the Kaw)
My manual calls for a limit of 19.5ft lbs for the main center cap. I think same for the 8mm ones.

never mind, ...I just re-watched and heard you say about 18ft lbs.....

Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Last edit: 21 Mar 2017 20:55 by missionkz.

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum