Hello,

I am wondering if anyone could help me out, I have a 1980 mercury 70 and can’t find too much info about these motors. What I have found is that the top hole has a tendency to go lean. Is there any way to fix this problem? Does anyone know the rev limit of this motor… how tight can I spin it before it throws a rod? Does changing to a fiber reed increase performance or is it just for a safety factor? Are there any easy ways to make this motor faster? I am new to the two-stroke world… so can you please tolerate me being naïve.

Thanks