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  1. M

    Koso Analog Tach with water Temp problems.

    98 MAX here. I put a Koso tach on, and I used the Grey wire from the OEM lead. I'm having trouble getting the tach set right. At idle, my clip on tach on a cylinder lead shows 1230 rpms. With the koso set for a 4 stroke 4 piston, the needle is all over the place. Same thing happens when I set...
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