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XF 250 Crossflow running rich 

 

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 Post subject: XF 250 Crossflow running rich
Posted: Thu Nov 10, 2011 6:44 pm 
Getting Side Ways
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Hey, my old XF Falcon with a 250 Crossflow is running REALLY rich, and backfiring a bit, and it gets worse as the engine warms up, it's belching black smoke too. It's overfuling, that's for sure, but what sort of thing can cause a carby to overfuel? Could the float be out of adjustment? it goes LOTS harder than I think it should be capable of too (I'm not complaining about that mind you) just the smoke, the fuel economy, and the backfiring)

Gab
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 Post subject: Re: XF 250 Crossflow running rich
Posted: Sun Nov 13, 2011 3:43 pm 
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choke isn't opening.

 

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 Post subject: Re: XF 250 Crossflow running rich
Posted: Sun Nov 13, 2011 3:51 pm 
Getting Side Ways
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tickford_6 wrote:
choke isn't opening.

either this or
Quote:
Could the float be out of adjustment?

because when i had my laser i had a problem when i was running the single carb the carby was over filling because some doosh before me set it that way, we fixed that and reset the timing and it was fine afterwards and im sure it was just the float was overfueling the carb badly

 

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 Post subject: Re: XF 250 Crossflow running rich
Posted: Sun Nov 13, 2011 3:55 pm 
Getting Side Ways
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we checked the float and the choke, and unfortunatley, it's neither of those things. Any other ideas guys?

Gab
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 Post subject: Re: XF 250 Crossflow running rich
Posted: Mon Nov 14, 2011 12:46 pm 
Stock as a Rock
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When you sleep at night a south-east asian mountain squrril in opening your bonnet removing the air cleaner assembly and pissing in your carbs causing it to over-fuel.
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 Post subject: Re: XF 250 Crossflow running rich
Posted: Mon Nov 14, 2011 1:09 pm 
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fuel adjutment needle worn out or your float chamber cut off is buggered
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 Post subject: Re: XF 250 Crossflow running rich
Posted: Mon Nov 14, 2011 1:20 pm 
Getting Side Ways
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bollocks wrote:
When you sleep at night a south-east asian mountain squrril in opening your bonnet removing the air cleaner assembly and pissing in your carbs causing it to over-fuel.


hahahaha :lol:
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