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Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

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  #11  
Old 12th November 2006
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Default Fuel Filters

I Have Always Run Fuel Filters On My Old Panhead,Old Triumphs.But,I Did'nt When I Got My New Evo.After About Four Years I Had To Take The Float Bowl Off and Found A Ton Of Crap....So I Ordered A Free Flowing Fuel Filter.I Heard Some Of The Lawnmower Type Filters Will Starve Your Engine At Higher RPM.Anyone Have This Problem?
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  #12  
Old 13th November 2006
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Absolutely use an in line filter. One grain of sand or crude can make the float needle valve stick open. My luck it'll happen on some cold night, long way from home.

NRHS sells a Russell filter. All metal, can be taken apart and cleaned. I wrapped mine in insulation to prevent vapor lock. No problems.
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  #13  
Old 13th November 2006
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Quote:
Originally Posted by Little Man
I Have Always Run Fuel Filters On My Old Panhead,Old Triumphs.But,I Did'nt When I Got My New Evo.After About Four Years I Had To Take The Float Bowl Off and Found A Ton Of Crap....So I Ordered A Free Flowing Fuel Filter.I Heard Some Of The Lawnmower Type Filters Will Starve Your Engine At Higher RPM.Anyone Have This Problem?
aNYONE eLSE hAVE tHIS pROBLEM?
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  #14  
Old 13th November 2006
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Default

My tank wa full of old factory sealer which was coming off and clogging my petcock. A few months ago I treated the tank with a kit from POR-15. I have always run an inline K & N fuel fliter with a brass insert. Last year the bike was cutting out whenever I got on it real hard, dropped the fuel bowl and found the black sandy grit. It was blocking the fuel to the needle. I always keep a spare in my tool bag.
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  #15  
Old 13th November 2006
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Crud in carb is common, too small a filter not allowing adequate fuel flow, yep.
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  #16  
Old 13th November 2006
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I don't run an inline, but you guys make me feel like I should. I never really thought about it because of the one on the petcock.
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  #17  
Old 13th November 2006
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Quote:
Originally Posted by XLXR
I wrapped mine in insulation to prevent vapor lock. No problems.
What material did you use for insulation?
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