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Carb Question?

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Old Jun 26, 2008 | 02:20 PM
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Default Carb Question?

On my 01 FLHTC, I adjusted my carb to base idle at 900rpms, because at full operating temp it would run up to 1500.&nbsp\\; Now it seems to low, takes longer to warm up, I have to use my enricher when its 90 outside for at least 1.5 miles.&nbsp\\; My question is, what should the base idle be set to?&nbsp\\; Carb is completely stock, no air kit or rejet.
 
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Old Jun 26, 2008 | 02:27 PM
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Default RE: Carb Question?

Do all carb adjustments when the engine is at operational temp . When it is there you would want it right at 1000 rpm's . Are you sure you are adjusting the idle and not the air fuel ratio ?
 
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Old Jun 26, 2008 | 02:40 PM
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Default RE: Carb Question?

ORIGINAL: js124

Do all carb adjustments when the engine is at operational temp . When it is there you would want it right at 1000 rpm's . Are you sure you are adjusting the idle and not the air fuel ratio ?
I did adjust at operating temp.&nbsp\\; I'm adjusting the screw to the right of the carb.&nbsp\\; Accessible with the air cover on.&nbsp\\; Brass screw.
 
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Old Jun 26, 2008 | 04:09 PM
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Default RE: Carb Question?

I am adjusting this screw.&nbsp\\; The mixture screw still has the original cap on it.


 
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Old Jun 26, 2008 | 04:09 PM
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Default RE: Carb Question?

You must do the final setting for the idle fully warm as posted.
If your carb is really factory stock , with the reinharts , it's probably really lean at idle and off idle.
If you can get to the pilot screw (with the cover removed) you could probably cure some of the long warmup time a bit.
I went from the stock #45 pilot to a #46 then a #48 to get my idle mixture right , just with V&H slipons.
If you care to get into a few carb mods (under $20.00) you can get the bike to run really nice.
My mods are in my sig at the bottom.
Good luck
Mick
 
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Old Jun 26, 2008 | 04:20 PM
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Default RE: Carb Question?

It ran fine and warmed up good, before I took it into the dealer for a 20K mile service.&nbsp\\; Not sure what they did, but it runs worse than before.
 
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Old Jun 26, 2008 | 06:08 PM
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Default RE: Carb Question?

So the 20K service was done?
Is it possible you stopped for fuel on the way home from the dealer?
One bad fill up can create havoc with a carb (or anything else).
You should voice your concern (carefully) with the dealer , and give them a full account of what you are experiencing.
Don't go in with an accusitory tone , just ask what may have led to this situation.
Have the service writer explain the entire 20K checkup , line by line , with a curious (concerned) undertone.
A good dealer will want to know how the techs are doing in the shop , and trace back to a problem area before it's a big problem.
I'm curious also , so let us know how you make out.
Mick
 
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Old Jun 27, 2008 | 08:36 AM
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Default RE: Carb Question?

Mich is on the money . You do sound lean . You need to have you carb rejeted if you haven't . It could be showing up because of the warm weather also . I adjust my carb monthly .
 
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Old Jun 27, 2008 | 10:30 AM
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Default RE: Carb Question?

ORIGINAL: Mick

So the 20K service was done?
Is it possible you stopped for fuel on the way home from the dealer?
One bad fill up can create havoc with a carb (or anything else).
You should voice your concern (carefully) with the dealer , and give them a full account of what you are experiencing.
Don't go in with an accusitory tone , just ask what may have led to this situation.
Have the service writer explain the entire 20K checkup , line by line , with a curious (concerned) undertone.
A good dealer will want to know how the techs are doing in the shop , and trace back to a problem area before it's a big problem.
I'm curious also , so let us know how you make out.
Mick
I did go through everything line by line.&nbsp\\; I did fill up on the way home from teh dealer.&nbsp\\; They said it could be that.&nbsp\\; I rode this morning and other than taking longer to warm up to operating temp, it idles exactly at 1000rpms.&nbsp\\; I'm thinking its probably lean and the weather is affecting it.&nbsp\\; I get a good bit of decel pop prior to warm up, but then it gets a little less.&nbsp\\; I'm thinking I should just complete the stage 1 with air kit.
 
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