Reply To: Johnson JW-12 rebuild questions

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June 29, 2024 at 9:19 am #288738
Tacitus043

    Thanks for the replies!

    Ed, email sent.

    I had to work today but I was able to to a cursory mic out of the crank and rod journals  this morning.  So far everything seems to be on the high end of the specs that Frank posted.

    The leading edges of the male splined shaft that engages the crankshaft do appear to have wear, however, I can slide on the crankshaft and nothing seems to skip or turn even with resistance.

    Any recommendations on grit size for honing?  I was planning on using a ball flex hone.

    Also, any tips for break in?  I’ve never run in a 2 stroke before.  I didn’t know if you needed to change anything with the mix to get the rings to seat in better.    Thanks!