I have a 2000 70 HP Johnson. After it warms up it drops the bottom cylinder. I
have replaced the power pack, the coil, and am now being told it's the timer
base. Is this right or could it be something else. Also, if one of these go
bad could it damage any of the other parts. I have tried to locate the timer
base part # 584804 but have no luck. All help would be appreciated.

DM