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Lawn Mower Primer Bulb

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ELVIS
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2025/05/17 07:26:39 (permalink)
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Lawn Mower Primer Bulb

Hi Everyone, 
I have a question about my MTD lawn mower primer bulb. It leaks when i push it so its done. I can squeeze just enough gas through it to get the mower to start for a few seconds, then it dies. Am i correct in thinking that since the primer is broken, the mower loses fuel vacumn to keep it running? Also, the primer bulb is the larger round red type with a black housing and has "PRIMER 2.0" printed on it. The part number is 951-05177A for reference. This primer appears to be an upgrade from the 951-05177, with just "PRIMER" printed on it. So this was the main reason I posted, are the 2 different primers that I listed interchangeable or are they potentially different? The 2.0 version is difficult to source. Thanks
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    SRTsFZ6
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    Re: Lawn Mower Primer Bulb 2025/05/17 16:04:54 (permalink)
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    An engine MAKE and MODEL would help us.. 
     
    The red primer bulbs either had NO hole in the center, OR did have a small hole (on purpose) 
    in the middle of it.
     
     
    .

    Scott
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    ELVIS
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    Re: Lawn Mower Primer Bulb 2025/05/17 17:37:08 (permalink)
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    Hi, thanks for the reply. Both primer bulbs appear to have the hole in the Center and are identical. Sticker on the mower says it’s made by MTD, but the model is a yard machine and the engine says powermore 140cc. Canadian model so might not be available in the US in this configuration. Model # 11A-02SB500
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    SRTsFZ6
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    Re: Lawn Mower Primer Bulb 2025/05/18 07:16:08 (permalink)
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    No sticker on the engine itself?
     
    I found the primer bulb on this site (look part ways down) and the part #:
    https://www.mtdparts.ca/en/prior-year-models/yard-machines-push-lawn-mower-model-11a-02sb500/11A-02SB500.html 
     
    Part # 951-10639B 
     
     
    .
    Get and install the correct primer and see what happens.
     
    .

    Scott
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