Question about Float Height

[danny01975]

I'm a little confused on how exactly to measure the float height. The manual that Nessism put together show the measurement is taken from the gasket surface to the top of the rounded part of the float. My service manual shows the measurement should be from the bottom edge of the carb body to the very top of the float. Which is the correct way? Or is it the same difference?

Here's the pic from my manual.
Screenshot 2024-12-26 at 5.41.37 AM.jpg


Also, about checking the fuel level in the bowls. I see lots of people checking the float level with the carbs on a bench. Nessisnm's guide says the same thing. But the manual says to check it with the bike running. The manual says the measurement should be 5mm. Nessismm's guide says 2.89. I'm guessing if you check it while it's running the other 2.1mm is being actively sucked up into the engine.

[Nessism]

Fuel level should be 5.0mm +/- 0.5

The photo in the tutorial is just an example on how to measure.

Measuring with the engine running is difficult, plus you can't easily change the level without taking the carbs back off. It's easier to test with the carbs on the bench. The result may not be perfect, but it's close enough. And speaking of close enough, it's difficult to hit an exact fuel level. I'm generally happy to see the fuel below the gasket surface anywhere from 2 - 5mm. If I can verify this, I don't mess with it any further.

Lastly, the diagram from the 1100G manual is wrong. The lines are shifted upwards. Should be to the gasket surface, and the notch in the float. Not to the top of the float as shown. You can't adjust the top of the float anyway.

[danny01975]

Fuel level should be 5.0mm +/- 0.5

The photo in the tutorial is just an example on how to measure.

Measuring with the engine running is difficult, plus you can't easily change the level without taking the carbs back off. It's easier to test with the carbs on the bench. The result may not be perfect, but it's close enough. And speaking of close enough, it's difficult to hit an exact fuel level. I'm generally happy to see the fuel below the gasket surface anywhere from 2 - 5mm. If I can verify this, I don't mess with it any further.

Lastly, the diagram from the 1100G manual is wrong. The lines are shifted upwards. Should be to the gasket surface, and the notch in the float. Not to the top of the float as shown. You can't adjust the top of the float anyway.

I did think measuring the fuel level on the bike, with the engine running would be a challenge. Especially on the two inner carbs. The bench method sure seems easier.

Thank you for the explanation!