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05-03-2012, 09:11 AM
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#1 |
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Gnarly Adventurer
Joined: Nov 2011
Location: Des Moines, IA
Oddometer: 276
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R90/6 Carb Float setting
So we are needing to adjust the floats on the carburetors and I wanted to see if there is a specific setting or measurement to how to adjust the float correctly. Any info would great!
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05-03-2012, 11:12 AM
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#2 |
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Beastly Adventurer
Joined: Aug 2010
Location: Las Cruces, NM
Oddometer: 1,028
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Pull a float bowl off then check the fuel level in the bowl. Look at post #13 in this thread, http://www.advrider.com/forums/showthread.php?t=781648 . Many good carb articles by Snowbum ... http://bmwmotorcycletech.info/techni...icles-list.htm
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Ray ABC #12947 '75 R90S |
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05-03-2012, 09:55 PM
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#3 |
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Mad Scientist
Joined: Nov 2003
Location: Chico, California
Oddometer: 3,005
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The molding line in the float should just be past parallel to the bottom of the carburetor. I do this with the carburetor off of the bike and upside down.
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BOXER Metal BMW Biker Scum BMW Mad Scientist! VBMWMO #7770, BMW MOA #48694 & Airhead BMW Club #600 |
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05-04-2012, 03:43 AM
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#4 |
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Beastly Adventurer
Joined: Feb 2006
Location: Bath Uk
Oddometer: 1,026
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I leave the carbs on the bike, remove float bowls, then I hold the floats up, turn the fuel back on and gently lower the bowls noting the point where fuel just begins to flow. This should be as the line on the floats is parallel with the bottom of the carb.
Main symptom of the fuel being too low is that bike refuses to go much more than 60/70 mph. When adjusting the tab that bears onto the bottom of the float needle, you want to aim to have the tab bearing straight onto the bottom of the float needle. Hope this helps. Charles
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Charles http://i46.photobucket.com/albums/f1...ps6e61ae2e.jpg R90s 1070 replica, R90/6 1971 Commando Fastback |
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