KZR's Bikes of the Month for 2024

VM28 float level

  • sf4t7
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26 Mar 2024 08:41 #896903 by sf4t7
VM28 float level was created by sf4t7
OK so here's my dumb question for the day:  Checking float level with the clear tube, is it 1/8" down from the float bowl gasket surface or from the lip at the bottom of the carb body?  Illustration in the FSM looks like it's from the bottom edge of the lip.  


Scotty

1974 Z1A
1015
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion

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26 Mar 2024 08:59 #896905 by Warren3200gt
Replied by Warren3200gt on topic VM28 float level
The mating surface of the bowl and body. 2-4mm. So aim for 3mm.


Z1000J2 somewhat modified!

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26 Mar 2024 10:11 - 26 Mar 2024 10:12 #896909 by Nessism
Last edit: 26 Mar 2024 10:12 by Nessism.
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26 Mar 2024 11:49 #896911 by Rolf1976_KZ900
Replied by Rolf1976_KZ900 on topic VM28 float level
here is fuel level on my kz900 just using a plastic tube screwed in the drainplughole.

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26 Mar 2024 12:17 - 26 Mar 2024 14:23 #896917 by Rolf1976_KZ900
Replied by Rolf1976_KZ900 on topic VM28 float level
if curius on what the float height is i did this test .It is a very good test to check if the float valve leaks and at what height the floatvalve opens.My carbs had a height at 25mm at 25,5mm they leak.
Here is a link to the test i use  from themotorcyclemd .




Last edit: 26 Mar 2024 14:23 by Rolf1976_KZ900.
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26 Mar 2024 14:14 - 26 Mar 2024 14:18 #896921 by Rolf1976_KZ900
Replied by Rolf1976_KZ900 on topic VM28 float level
ups i forgot that i have carbs for kz1000 on my bike but they are vm28 I think ? i will check again in a earlier tread .
Okay update i have vm26 carbs.
Last edit: 26 Mar 2024 14:18 by Rolf1976_KZ900.

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  • sf4t7
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26 Mar 2024 15:09 #896927 by sf4t7
Replied by sf4t7 on topic VM28 float level
Thanks Ed.  I couldn't decide if the FSM was referring to the bottom of the body or the top edge of the float bowl.  And then I started overthinking it...   


Scotty

1974 Z1A
1015
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion

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  • slmjim+Z1BEBE
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26 Mar 2024 17:47 #896937 by slmjim+Z1BEBE
Replied by slmjim+Z1BEBE on topic VM28 float level

The datum is the bottom edge of the carb body.  

 
 
What manual is that illustration from?

The Z1 'White' FSM reads "About 1/8" " there.  The ambiguous "About" always drove slmjim nuts.  Still does.

Good Ridin'
slmjim & Z1BEBE
 

A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.

1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A

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27 Mar 2024 17:30 - 27 Mar 2024 17:31 #896985 by Cra-z1
Replied by Cra-z1 on topic VM28 float level
I always set it just to the top of the split washer on the bowl screw.
Last edit: 27 Mar 2024 17:31 by Cra-z1.
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