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TOPIC: 76 KZ900 Carb Vent Routing

76 KZ900 Carb Vent Routing 03 Jul 2020 06:31 #829677

  • mrmach5
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Question, There are two carb vent nipples one on #2 and one on #4 carb. Anyone know the correct routing for the vent tubes. I'm thinking they should vent high well above the carbs ?
Thanks for any info.

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76 KZ900 Carb Vent Routing 03 Jul 2020 06:41 #829678

  • slmjim+Z1BEBE
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On Z1's, we terminate them one on each side between the frame rails under the tank and the main backbone, just in front of the gusset where the backbone joins the two upper side rails.

Later Z1's have an oval cutout in said gusset sized just right for the vent hoses. There's been some discussion as to the real intent of that oval hole. We still prefer to terminate the hoses directly under the tank as described above for (perhaps) better protection from water incursion.

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slmjim & Z1BEBE
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76 KZ900 Carb Vent Routing 03 Jul 2020 11:00 #829691

  • Mikaw
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1976 KZ 900 A4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.
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76 KZ900 Carb Vent Routing 03 Jul 2020 11:45 #829695

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Perfect,
Thank you!

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76 KZ900 Carb Vent Routing 03 Jul 2020 11:57 #829697

  • Mikaw
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I have referenced pictures on the bike several times... it’s a beautiful example... The person that bought it joined the site but currently can’t find his post sale thread...

kzrider.com/forum/23-for-sale/610515-197...a4-fore-sale?start=0
1976 KZ 900 A4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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76 KZ900 Carb Vent Routing 06 Jul 2020 11:33 #829937

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Follow up, need advice from experts. Doesn’t the vent hose route through the oval hole shown at red arrow

1976 KZ 900 A4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.
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Last edit: by Mikaw.

76 KZ900 Carb Vent Routing 07 Jul 2020 10:16 #830017

  • krazee1
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I'm quite sure the factory routing was as your two photos depict, through the oval in the frame gusset and secured in the clamps in the air filter cover.

Disclaimer: LONG time ago that I did "factory routing" Mike
Former M.E. at Kawasaki Motors Manufacturing, Lincoln, NE
1966 W1 (the Z1 of 1966-50H.P. and 100mph!)
1974 Z1A (disassembled)
1976 KZ900B LTD (SOLD!) it's in GOOD Hands!
1978 KZ1000 LTD
1976 KZ900B LTD pile O parts!
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