I have a 2001 Monster S4.
The fuel level sensor hasn't worked since I bought the bike. This is mostly an inconvenience, but as there is no reserve facility it means I need to keep a close eye on my mileage or risk running out of fuel.
Recently I've had issues with the indicators not working while the bike is in motion. On testing when stationary all lights and switches seem functional, but later when riding the indicators failed to work. It was daytime so I'm not sure what else was/was not working. Testing later on the driveway the indicators did not work, but on turning it off and on again, they worked fine. I rode it again a few days later and the same thing happened.
Where should I start for troubleshooting this intermittent electrical fault?
Is replacing the fuel sensor something I can do at home or will I need workshop facilities? I have a fairly comprehensive set of hand tools, but limited power tools and no welding or other specialist tools.