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Author Topic: carb needele setting  (Read 873 times)

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Offline neilc

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carb needele setting
« on: July 08, 2013, 10:06:34 AM »
i am rebuilding carbs,dumb question i need answered want to lean mixture slitghly raise or lower needle clip?
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Offline flybox1

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Re: carb needele setting
« Reply #1 on: July 08, 2013, 10:12:12 AM »
RAISE (move away from pointy end)
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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Offline neilc

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Re: carb needele setting
« Reply #2 on: July 08, 2013, 12:27:53 PM »
can't believe i had a brain fart while working on carbs,anyway started bike after installing new float and setting heights,replaced needles and raised clip by 1 notch,carb 2 no firing right think i have to go back into that carb float height,it started after a minute or 2 but not firing like 1,3,and 4
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Offline lucky

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Re: carb needele setting
« Reply #3 on: July 08, 2013, 01:14:18 PM »
What year is the bike? 750 or 550?

The clip setting has NOTHING to do with if it fires.

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Offline neilc

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Re: carb needele setting
« Reply #4 on: July 08, 2013, 01:31:35 PM »
71 750 k1,just trying to lean it out a little,plugs foul after riding 50 miles or so(rich)went from 140 mains to 135"s
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