My rig is a 1995 pro 18 bass tracker 90hp merc.I found no name or numbers on the tach.I am going by wide open throtle,trim just under porposing.It has a 19 pitch stainless prop.RPMs do not vary on the same run,they vary on different runs.Once you get going rpms stay the same just different from last time.Same load,same fuel,same everything except RPMS.I dont mind buying a new tach as long as i know I need one.Also I need to know what kind of tach merc used on 1995 90hp.
By the way,Im sitting here drinking my coffee,the sun is comming up here in westminster SC,my boat is ready to go (exept for rpms?)And I know those spots will be biting my ice worms,IM GOING FISHING (EAT YOUR HEART OUT)!!LAKE KEOWEE HERE I COME!! :
