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K&B fuel needle setting!

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Old 09-09-2010, 09:53 PM
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cobradave
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Default K&B fuel needle setting!

I have a K& B and have good glow plug and fuel going in and still won,t fire any ideas!
Old 09-09-2010, 09:55 PM
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cobradave
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Default RE: K&B fuel needle setting!

sorry guys 3.5 outboard! good compression and still won,t fire!
Old 09-09-2010, 10:29 PM
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jmy2u
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Default RE: K&B fuel needle setting!

Check out this thread, same problem as your having.http://www.rcuniverse.com/forum/m_9059210/tm.htm
Old 09-09-2010, 10:37 PM
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iowapiper_rcp
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Default RE: K&B fuel needle setting!

I dont want to insult, but are you spinning it the correct way? They spin opposite of inboard motors.
Old 09-15-2010, 09:52 AM
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tnltyme
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Default RE: K&B fuel needle setting!

My 3.5 KB is set at approx 2 1/2 turns,  which appears to be slightly rich,  but should run fairly well.......
Old 09-15-2010, 10:52 AM
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allan1353
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Default RE: K&B fuel needle setting!

A good starting point would be about 3 turn out. someone correct me if I'm wrong. Hows the motor on compression?
Old 09-15-2010, 06:06 PM
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ob nut
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Default RE: K&B fuel needle setting!

3 1/2 to 4 turns out on the older K&B black carbs. Seen where a SS needed to be 4 1/2 turns out. K&B needles are not perfect. That is why I use a flow meter to determine the best setting for the motor. I've seen where turning the needle out, it leaned up.

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