Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1
  • 2

TOPIC:

KZ440 with KZ400 B2 Engine with hanging idle and backfire problem 17 Nov 2021 16:53 #858016

  • F64
  • F64's Avatar
  • Offline
  • User
  • 81-KZ440D2
  • Posts: 802
  • Thank you received: 221
Do a full throttle run

Then tape up half of your air filter intake to create a richer mixture.
Do another run. Did it pull harder?

Take off the tape then unscrew your air filter and leave a slight opening between your air filter housing and airbox housing.
Do not remove your air filter housing as that would be too much air.
You are creating a leaner mixture.
Do another full throttle run.

Which run was better? normal, lean, or rich?
Make sure your carbs are synced before testing.
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

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

Last edit: by F64.
  • Page:
  • 1
  • 2
Powered by Kunena Forum