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Thread: Kerosene carb rack dipping???

  1. #1
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    Default Kerosene carb rack dipping???

    Hi just want to give my carbs a thorough cleaning I already removed all the guts from the carbs and I am thinking will a carb dip in kero do a good job or will it damage the aluminum inside the carbs and eat away any rubber? Particularly the T joint o-rings???
    1980 Suzuki GS550E -1965 Vespa 90 -1958 BMW R26

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    Kerosene won't hurt anything but it's not the proper way to clean the carbs either. For one, the carbs need to be fully dissembled to clean them properly. Please check the Newbie Mistake and carb rebuild tutorials linked in my signature.

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    This thread makes me ask a similar question.
    I've cleaned my carbs in the past with the typical gallon paint can of carb cleaner -- disassembled of course. Time consuming and smelly, but I do it outdoors and it's not difficult -- you just have to do everything in order.
    I have lots of kerosene. Can it be used as an alternative to regular carb cleaner? They both stink, but carb cleaner is much worse.
    I might need to do some carb cleaning again this year, and it would be great if I could use kerosene instead -- I have five gallons of kerosene and only a half can of carb cleaner, so it would be nice if kerosene would do the job!!!
    '77 GS550B
    '78 GS550C

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    Yeah of course they should be disassembled and they are EXCEPT breaking the carbs from the rack. Because I think my original question caused some confusion the real question is. Is kerosene harsh enough on metals or rubbers??? I know it can de-stink an engine bay easily using brushes but the carb shinny inside metal or rubbers I am not sure.
    1980 Suzuki GS550E -1965 Vespa 90 -1958 BMW R26

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    The O-rings between the carbs on the rack are the ones that deteriorate most rapidly. That's one of the reasons it's important to ungang the carbs when rebuilding them.

    Regarding kerosene, it's a good degreaser but I'm not sure how well it would work on carb varnish. It won't hurt metal, but if you don't listen and dip rubber carb parts I wouldn't leave them soaking for long.

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    I don't know if I will be doing any carb cleaning this year or not. My guess is "VERY likely". If I don't hear any reason not to, after disassembly, I'll try cleaning one carb in genuine carb cleaner, and one in kerosene -- and report back at some point.
    '77 GS550B
    '78 GS550C

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    Quote Originally Posted by xkaes View Post
    I don't know if I will be doing any carb cleaning this year or not. My guess is "VERY likely". If I don't hear any reason not to, after disassembly, I'll try cleaning one carb in genuine carb cleaner, and one in kerosene -- and report back at some point.
    I was just going to suggest just that, if you wanted to take the time. Documenting things like this is what has kept this site the great place that it is. Ed Ness's tutorial is the tried and true method of cleaning/rebuilding carbs. But if you want to take a different path, please document any successes or failures of your kero method - compared to the Berryman's method. No harm in trying, and maybe you'll discover something that no one else has tried, or at least bothered to document.

  8. #8
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    I'm sure this isn't a "Marco Polo" adventure going down "a path never travel", but if I can't find out the results of someone else's mis/adventure, I'll try it myself.
    Fortunately, I have two, so I'm all set when one is in "the shop".
    '77 GS550B
    '78 GS550C

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    UPDATE. Split the rack soaked and agitated each carb with old toothbrushes first in white vinegar and then did the same in kero. Again the Kero amazed me like it did when I did a top end refurbish on the bike and cleaned the whole block with it. Carbs look like they have Been vapor blasted.! The trick is to agitate with soft brushes I think. If you are into cleaning stuff etc itís very relaxing experience.
    1980 Suzuki GS550E -1965 Vespa 90 -1958 BMW R26

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    Good news -- I guess.

    There appears to be a lot of support for cleaning carbs with kerosene -- here is one thread from our sister Forum, "GSX-R":

    https://www.gixxer.com/threads/kerosene-for-carbs.703210/

    Lots of posts say that carbs typically have an outer clear coating that is destroyed by carb cleaner -- but not kerosene.

    Any thoughts???
    '77 GS550B
    '78 GS550C

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