Thread: SW 990D Ignition Monitor CD Ignition Tach Sender
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Old 12-03-2008, 06:56 AM
SuperNovaSS SuperNovaSS is offline
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Default Re: SW 990D Ignition Monitor CD Ignition Tach Sender
OK, I found it. The screw it to tune out erratic needle movement. Also, the instructions say that the 990D can be used as a replacement for 990B. This sender will also work on points ignitions! Joe, if you had to ask about the adjuster screw that means you need one of these.







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