Reply To: 1956 Johnson 30hp Only 1 Cylinder Firing

Home › Forum › Ask A Member › 1956 Johnson 30hp Only 1 Cylinder Firing › Reply To: 1956 Johnson 30hp Only 1 Cylinder Firing

July 27, 2024 at 7:12 pm #289475
John Gragg
Participant

    Maybe I missed it? Have you done a compression test on each cylinder yet?

    Spark on both cylinders is great, but without compression you’re not going to get the pop you are looking for.

    Best Regards,

    John Gragg
    RIverside, CA

    Just starting in the hobby, please be patient.

    48 Sea King 5hp GG9014A. Sold
    49 Sea King 5hp GG9014A
    48 Johnson TD20. Sold
    49 Johnson TD20. Sold
    54 Johnson QD15. Sold
    55 Johnson CD12. Sold
    57 Johnson RJE-19M
    57 Johnson RDE-19