First off 1996 Johnson 150 Fastsrtike
Mod #: J150GLEDB
S/N #: G 04098220

My outboard does not want to start. When I first crank it over it spins ok at first then slows down, like the battery is dead. The starter is pretty loud, but I am not sure if this is just the nature of the beast. I know the battery is fully charged, I cleaned the terminals and checked the conections everything seems good. A while back I was having problems and changed the power pack. This fixed most of the issues I was having. The motor ran great last time I was out, now it won't start. I also noticed that the tach was acting funny while I was cranking it over. The longer I cranked the engine the higher the tach regrestered. Also, occasionally the gauges will not work. The engine runs fine but the gauges don't work. Most of the time if I turn the engine off and back on the problem goes away. Could these two things be related? Where should I start looking?