Preliminary float adjustment 32 mm.

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09 Mar 2016 08:27 #714614 by car5car
Preliminary float adjustment 32 mm. was created by car5car
I checked height of 4 floats, there was about 3 mm (1/8") difference between them. 26, 27, 24,(leak) 24.(leak) So I needed starting point.
78 Specs (26mm carbs) specify 32mm float height and 4 mm gas level.
I have 80 KZ1000E. shaft.
Specs for 80 models (28mm carbs, not for E) show only 4 mm gas level, no specs for float height.
Shaft guys, please let me know float height and gas level, please.

96 Yamaha Royal Star
82 Yamaha Virago 920

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21 Mar 2016 16:37 #716615 by rsilva
Replied by rsilva on topic Preliminary float adjustment 32 mm.
I have been having trouble getting the correct float height for my 78' KZ 650B2. The # 2/3 floats will become stuck or overflow fuel. I do not have access to a float level tool. The technical manual that I have says 25mm. any suggestions?

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21 Mar 2016 17:21 #716627 by car5car
Replied by car5car on topic Preliminary float adjustment 32 mm.

rsilva wrote: I have been having trouble getting the correct float height for my 78' KZ 650B2. The # 2/3 floats will become stuck or overflow fuel. I do not have access to a float level tool. The technical manual that I have says 25mm. any suggestions?

There is a big difference between height specs and gas level.
I have perfect 4 mm gas level but float height is about 28-29 mm. Specs float height is 33mm.

96 Yamaha Royal Star
82 Yamaha Virago 920

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21 Mar 2016 19:42 #716650 by rsilva
Replied by rsilva on topic Preliminary float adjustment 32 mm.
oh, I understand now. how did you measure your fuel level height?

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22 Mar 2016 05:19 #716688 by KZRog
Replied by KZRog on topic Preliminary float adjustment 32 mm.
There seems to be confusion on float levels that I heard quite a bit. On my B1 manual at least it does not list a float height. It does list 2 fuel levels though and I think thats where the confusion comes in.

In table H1 it lists the Design Fuel Level at 30 +- 1mm.
It lists the Service Fuel Level at 3.5 +- 1mm

The Design Fuel Level is not a float height. The manual goes on to explain in the text (which is often not read :) ) that the Design Fuel Level is defined as the vertical distance from the center of the carburetor bore to the surface of the fuel in the float chamber. It goes on to say that, It is impractical to measure the actual design fuel level. Service fuel level is defined as the vertical distance from the bottom edge of the carburetor body to the surface of the fuel in the float chamber. And then it explains the procedure of checking the service fuel level.

Nowhere in the manual does it say anything about taking any actual float measurements. I think the only reason they mention Design Fuel Level is to confuse people working on it..........mission accomplished :)

1977 KZ650 B1
1982 KZ1100 A2
2006 TW200
2009 TW200
2011 Sportster 48

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22 Mar 2016 05:28 #716691 by KZRog
Replied by KZRog on topic Preliminary float adjustment 32 mm.
I just realized this is not for a 650 so if your manual states otherwise disregard my last post :)

1977 KZ650 B1
1982 KZ1100 A2
2006 TW200
2009 TW200
2011 Sportster 48

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22 Mar 2016 05:37 #716692 by RonKZ650
Replied by RonKZ650 on topic Preliminary float adjustment 32 mm.
All the 650s and 1000s are the same basic carburetor design. Doesn't matter if they are 22,24,26 or 28mm. Kawasaki never published a float level spec. Always fuel level, which most didn't bother to measure. The floats could never be set to 31mm, that if for sure. 25mm is pretty close.

321,000 miles on KZ's that I can remember. Not going to see any more.

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