ch150 carburetor question

Discussion in 'Battle Scooters' started by scottorious, Sep 11, 2012.

  1. scottorious

    scottorious n00b

    Joined:
    Jul 16, 2012
    Oddometer:
    9
    I just acquired a kind of basket case ch150 and I want to build a skelly out of it. I am in the process of rebuilding the carburetor and this model has an air cut-off valve. I didnt get the valve while it was put together so I am not sure if there are internals that I am missing. Is anyone familiar with that? The parts view only shows the entire valve and the service manual doesnt mention anything about whats inside the valve body.
    #1
  2. tortoise2

    tortoise2 Been here awhile

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    Dec 29, 2007
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    580
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    This video may or may not help . . link.
    #2
  3. bbishoppcm

    bbishoppcm It ain't a moped.

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    #3
  4. bbishoppcm

    bbishoppcm It ain't a moped.

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    The cutoff valve should never be disassembled; but yours should include a diaphragm, a tiny o-ring, and a spring. If either part is missing, you'll need to either buy a whole new valve from Honda, or buy a used carb off eBay. You can buy a Chinese carb and use it for parts, but beware; the Chinese carbs are a TOTAL gamble (as you'll see in the first video sent by tortoise), but can save you a bundle in parts IF the parts were accidentally made right! In the case of my Honda Helix, the original cutoff valve was leaking, and the o-ring was not available ANYWHERE! I ended up having to buy a whole new valve... for around $90.
    #4
  5. scottorious

    scottorious n00b

    Joined:
    Jul 16, 2012
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    9
    thanks for all the info. After seeing the video I could see that I no longer had the parts that go inside. I was able to find one on ebay for 19 dollars and i sprung at the chance after seeing that those things are expensive to buy new.
    #5
  6. bbishoppcm

    bbishoppcm It ain't a moped.

    Joined:
    May 19, 2010
    Oddometer:
    666
    Location:
    Bennington, NH
    Just don't open it! There is a test procedure to verify the valve actually works; the exact procedure escapes me right now though...
    #6