Serial # 2B655262
150 ProXS 4 stroke
What should the settings be for an analog tach? All the information I have says it is a 12 pole alternator- use position 5. This is a Faria tach, 1-6 switch positions. At this setting I cannot obtain any usable accuracy. It will read idle at 1000 rpm. If I use the trimmer dial, I can get close to 650 rpm, but the upper end is then wrong. I have vessel view mobile- this is what I am verifying against. Thanks.