Re: 1978 Johnson 2 hp

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September 24, 2018 at 2:06 pm #83457
David Stanton
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    If you are using a compression gauge with a checkvalve at the gauge end of the hose, you have higher compression then you are reading because the volume of space in the hose is significant and will lower the reading with that little cylinder. I have one of these 2 HP Johnsons and it idles great
    Dave