Re: In Line Fuse's
Let me walk your through it.
The 20 amp fuse near your starting solenoid runs all your Merc functions including your engine, remote control, and any Merc accessories (tach, speedo, fuel gauge) attached to the Merc accessory plug of your Merc wiring harness near your control box. It says 20 amps and that is what it needs to be.
Any other "stuff" is wired on it's own. I don't know about your foil wrapping nor why, but everything else needs to be:
10 Amp fuse for 16 AWG wire
15 .............for 14
20 .............for 12
40 .............for trolling motor wiring...usually 6 gauge.
If you don't know what AWG (American Wire Gauge) is, go to your automotive parts store and get into their wiring/connectors section and you can see the packages with wire in them with the AWG size on the label. Compare the size (diameter of the wire, forget the insulation) of that wire to yours and you now know how to size it.
You need a pretty much fully charged battery to crank your engine. If it is discharged, charge it then get after your engine starting. A clicking starting solenoid is a discharged battery.
Trim only working in the down only position could be a bad up trim relay. You have 3 relay/solenoids that look a lot alike: starter, up switch, down switch. There is a blue and green wire to the trim cylinder that applies activation voltage to the trim motor. Each comes from either the up or down relay (one color per relay).
The blue/white or green/white wires supply 12v from your trim button to activate the respective relay. When it energizes it runs the pump in the direction selected to move the piston out or in, up or down. If you have 12v to the xxx/white control wire to the respective relay, and you don't have 12v through the high current contacts, the relay is contaminated and needs to be replaced.
Want more ask.
Mark