Fuel Filters
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Intermediate
Joined: Jul 2008
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Fuel Filters
I took an old S&S carb off my bike recently and it was a mess inside. Lots of crap in there. The only filter I have is the fuel strainer inside the tank, right over the fuel shut off.
I’m considering installing a low-pressure fuel filter. Have any of you guys tried any of these?
I'm considering a 5/16" paper filter. It seems like it would be the most effective as far as filtering goes but I don't know how well it will flow in a gravity fed system.
My fuel line is 1/4" so I may have to go with a brass or stainless steel filter instead since they don't seem to make a 1/4" paper filter.
http://www.knfilters.com/fuelfilter.htm
I’m considering installing a low-pressure fuel filter. Have any of you guys tried any of these?
I'm considering a 5/16" paper filter. It seems like it would be the most effective as far as filtering goes but I don't know how well it will flow in a gravity fed system.
My fuel line is 1/4" so I may have to go with a brass or stainless steel filter instead since they don't seem to make a 1/4" paper filter.
http://www.knfilters.com/fuelfilter.htm
HDF Community Team
Joined: Dec 2005
Posts: 5,375
Likes: 2,572
From: NC USA
There is no better filter than the plastic strainer at the petcock, assuming it's not damaged. It will filter ANYTHING that an external can catch and still allow fuel flow. And yes, it'll stop water too. They aren't expensive from a dealer either.
Seems S&S carb guys have a lot of probs with trash and I'm guessing some gets in thru the bowl vent. But if it's getting a fine, powder-like accumulation in the bowl (which is rust, I call it snuff rust) no filter in the world will stop that. You'll have to clean/coat the inside of the gas tank. Fuel lines can break down on the inside and put flakes of trash in a carb too.
Seems S&S carb guys have a lot of probs with trash and I'm guessing some gets in thru the bowl vent. But if it's getting a fine, powder-like accumulation in the bowl (which is rust, I call it snuff rust) no filter in the world will stop that. You'll have to clean/coat the inside of the gas tank. Fuel lines can break down on the inside and put flakes of trash in a carb too.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,195
Likes: 3,085
From: NW AR
You can get a 1/4" inline little metal can filter at any auto parts store. I don't have the cross number with me, but you can look in the picture catalogs for it from fram or Wix. Cross the fram over to another brand. If you really want, I can go to the garage and look at one for the number
Tourer
Joined: Sep 2008
Posts: 322
Likes: 0
From: California
I go to Lowes and get the Briggs and Stratton little clear fuel filter by the lawn mowers. I go through about one every 8 months. I commute on my sled. I tour at 65 - 70 mph. When they plug up, I'm just glad that stuff didnt get in the carb. They are cheap for like three bucks. Always carry a n extra. Cheap filter that works.
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Intermediate
Joined: Jul 2008
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Thanks for the info guys.
How do I remove the plastic strainer from the petcock?
I figure I might as well replace that as well.
I have a new one, but I don't want to pull off the old one, because I don't want to break it inside the petcock.
Does it just pull off or twist off?
How do I remove the plastic strainer from the petcock?
I figure I might as well replace that as well.
I have a new one, but I don't want to pull off the old one, because I don't want to break it inside the petcock.
Does it just pull off or twist off?
HDF Community Team
Joined: Dec 2005
Posts: 5,375
Likes: 2,572
From: NC USA
Thanks for the info guys.
How do I remove the plastic strainer from the petcock?
I figure I might as well replace that as well.
I have a new one, but I don't want to pull off the old one, because I don't want to break it inside the petcock.
Does it just pull off or twist off?
How do I remove the plastic strainer from the petcock?
I figure I might as well replace that as well.
I have a new one, but I don't want to pull off the old one, because I don't want to break it inside the petcock.
Does it just pull off or twist off?
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Thread Starter
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Intermediate
Joined: Jul 2008
Posts: 46
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Thanks for the info on the rubber washer.
I'm going to get one of those before I replace the strainer.
I'm going to get one of those before I replace the strainer.
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