Join Date: Oct 2009
Location: Cape Cod
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Re: Can't drop gear case to change impeller on Tohatsu 6HP
If it's like other small outboards I've worked on, you can mess with the shift rod adjustment till you get it right. Disconnect the spark plugs so you're sure it won't start, then try different shift rod adjustments. When it's in gear forward and reverse, you shouldn't be able to easily turn the prop by hand (cause of engine compression). When in neutral, it should spin freely. You probably are close to the right setting if you get neutral in the middle setting, and the prop doesn't easily turn in forward and reverse. Once you've got it adjusted as above, then put it in the water and fire it up and see if it works in all 3 positions. If you hear it slipping or not fully engaging, try again....
Not sure this is the best way but it's worked for me. Good luck!