Reply To: 1954 Johnson RD15A Spark advance at startup

[JACQUES]

to open it carefully drill a small hole (3/16 …. 1/8) DO NOT PUNCTURE to deep just the small cap needs to be perforated then take a pick and pry it off

btw you should see the tip of the LS needle if you seat it all the way in it should stick out in the small fuel hole feeding the chamber

make certain carb cleaner will clean out that hole and blow dry it (remove the needle… block the side feeder UP..channel and all the carb cleaner will exit via the small hole)

to reinstall place the new cap in place take a 1/8 punch or the tip of a square (roberston) screwdriver and gently punch it down (not to hard )

I seal the perimeter with 2 coats of clear nail polish

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