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92 fxst carb priming?

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Old Mar 25, 2020 | 10:19 PM
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Default 92 fxst carb priming?

I'm working on my friends bike, 1992 FXST with a CV carb, stock exhaust with a small non restrictive air cleaner. I have the mixture screw at 3.5. I can't get this bike to start without 4 or 5 prime squirts. Once the bike is running is idles great and runs amazing. Is this normal for this bike/carb?
 
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Old Mar 26, 2020 | 05:53 AM
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Are you pulling the choke out?
 
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Old Mar 26, 2020 | 06:07 AM
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Originally Posted by section8joe
Is this normal for this bike/carb?
On that carb, with stock engine, you just need to pull out the enrichener (choke) **** and press the start button, the engine should start right up.
 
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Old Mar 26, 2020 | 06:08 AM
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Originally Posted by section8joe
Is this normal for this bike/carb?
On that carb, with stock engine, you just need to pull out the enrichener (choke) **** and press the start button, the engine should start right up. No need to twist the throttle, just leave it in the idle position.

 
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Old Mar 26, 2020 | 07:14 AM
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I give my throttle a few twists before hitting the start button.
 
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Old Mar 26, 2020 | 09:52 AM
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Yep, the choke it out but it won't fire without a few squirts. I was thinking about adding more fuel with the mixture screw. Does counter clockwise add more fuel or more air to the mixture?
 
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Old Mar 26, 2020 | 01:11 PM
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Originally Posted by section8joe
Yep, the choke it out but it won't fire without a few squirts. I was thinking about adding more fuel with the mixture screw. Does counter clockwise add more fuel or more air to the mixture?
counter clockwise will be opening the screw which will add more fuel to the mix.
being you're at 3.5 turns out already, any chance the pilot/slow jet is partially clogged?
if not, you may need to go up one size on slow jet.
at 3.5 turns out, going more increases the potential for the adjuster screw backing out & possibly falling out.
 
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Old Mar 26, 2020 | 01:33 PM
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If you remove the low speed screw, be careful not to lose the tiny washer, o ring and spring.

The low speed circuit may have some crud in it.

You don`t need to fuss with jet size on a stock engine. If it ran correctly with this jet, it did not all of a sudden need a richer one.

Really your best bet is to remove the carb, disassemble it completely and clean it.

I wonder if there is a prize for the most double posts in a forum, if there is, I win... I can`t seem to figure it out...
 
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