Recent content by meser300

  1. M

    1975 Johnson 6hp (6RL75R) — idle timing off due to play in throttle shaft, need diagram of shaft/socket coupling

    Thank you very much, sir! You helped me disassemble and remove the shaft. It wobbled slightly, probably due to the lack of a bushing, which would have created a gap with the follower. However, how can I adjust the gear throttle (#73) or break the hard link to turn the magneto without using the...
  2. M

    1975 Johnson 6hp (6RL75R) — idle timing off due to play in throttle shaft, need diagram of shaft/socket coupling

    Sorry for the confusion — English isn't my first language, and I initially misread your question as being about the spark plug gap rather than a separate spark-gap tester test. I understand now that you're asking whether the spark can jump a 5/16" air gap on a tester, independent of the plugs...
  3. M

    1975 Johnson 6hp (6RL75R) — idle timing off due to play in throttle shaft, need diagram of shaft/socket coupling

    Do you mean that if I remove the clamp collar holding the shaft, I'll be able to disconnect it from the lever? (photo-7) Quick clarification — when you say 'the cam under the mag plate has a mark', do you mean the mark is on the breaker/armature plate itself, or on the curved cam piece (the one...
  4. M

    1975 Johnson 6hp (6RL75R) — idle timing off due to play in throttle shaft, need diagram of shaft/socket coupling

    That is exactly the problem. When the handle is at the 'start' point, there is a 0.5" gap between the cam and the follower (see photo 1). I ordered a throttle control gear (part no. 0324512) to reduce the gap, but this was not enough. How do I adjust the meshing gear on the handle?
  5. M

    1975 Johnson 6hp (6RL75R) — idle timing off due to play in throttle shaft, need diagram of shaft/socket coupling

    The compression is around 80 on both cylinders. The spark plugs are brand new Champion J6C. The gap is about 0.30.
  6. M

    1975 Johnson 6hp (6RL75R) — idle timing off due to play in throttle shaft, need diagram of shaft/socket coupling

    Hi folks, I'm newbie in the Johnson motors and met the next problem: Working through a full rebuild on this motor — carb rebuilt, fuel pump rebuilt, points gapped at .020, spark good on both cylinders. Motor starts and runs fine at FAST but won't hold a stable idle; throttle plate barely opens...
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