Electrical system/start doesn't fire up. Main fuse and battery and connections are good.

Yes, there is likely a main fuse in your 2009 Kymco Venox 250 motorcycle that could have blown if you connected the charger directly to the + and - terminals on the starter. Many motorcycles have a main fuse located close to the battery or the fuse box to protect the electrical system from overloads and short circuits.
When you connect a charger directly to the starter terminals or other critical electrical components, you risk damaging the electrical system and causing a short circuit. If there was a surge of current due to improper connection, it could have blown the main fuse to protect the rest of the electrical components on the bike.
To troubleshoot the issue and restore power to your motorcycle, follow these steps:

1. Locate the Main Fuse: Check your motorcycle's manual or service documentation to find the location of the main fuse. It is often located close to the battery or in the fuse box.
2. Inspect the Main Fuse: Remove the main fuse and visually inspect it. If the main fuse is blown, you will see a break in the metal strip inside the fuse. Replace the blown fuse with a new one of the same amperage rating.
3. Check Other Fuses: Even though you mentioned that all the fuses are good, double-check all the other fuses in the fuse box to ensure none of them have blown.
4. Check Battery Voltage: After replacing the main fuse, check the voltage of the battery using a multimeter. Ensure the battery has enough charge (around 12.6 volts or higher) to power the electrical components.
5. Reconnect Charger Properly: If the battery voltage is low, connect the charger properly to the battery terminals (positive to positive and negative to negative) and charge the battery until it reaches an appropriate level.
6. Recheck Power: Once the battery is charged and all fuses are confirmed to be good, turn the key on and check if the lights and gauges receive power.

If you have followed these steps and still do not have power to the motorcycle, there might be other electrical issues caused by the improper charger connection. In that case, it's recommended to seek the assistance of a qualified motorcycle mechanic or electrician to diagnose and fix the problem correctly.

Check the main fuse if thats good. Look for loose connections at the battery and ground

Test the starter electrical circuit's . Main positive cable to starter , control side .Do you know how to use a DMM - digital multi-meter ?
No Crank Slow Crank

Bad cable or connection? Clean posts of battery and reseat connectors, follow power cable checking voltage along the way

What year F-150 ? Do you know how to test automotive electrical circuits ? Find a electrical distribution diagram at http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click electrical distribution , then under subsystem click power distribution . Click the search button ,then the blue links one at a time . Start at the battery , with a volt meter ,what's the voltage . Then check main power feeds to power distribution (fuse /relay) boxes . Under the hood , inside the vehicle etc... The first diagram shows two main 30 amp fuse in the ( BJB ) one supply's B+ to the starter relay an if you look down about 5 or 6 diagrams you will A goes to the ignition switch. The other 30 amp fuse powers the PCM power relay . Both of those if open could cause your problem . If these are ok keep looking at main power feeds etc....

sounds like a shorted cell in your battery. beleive it or not, I've also seen a bad altentator do the same thing. If you get the car started you can disconnect the battery while the car is running,if the engine dies, then you have a bad altenator. If it keeps running, then you will want to replace the battery. If neither of these work, then you'll want to start thinking "outside the box" with things like a bad ground connection, fuse box issues etc. Hpoe this helps!

Hello,
It sounds like your Hyosung may have an electrical or battery issue. I have seen batteries that fail that quickly. I would check the main fuse and also check the battery to see if it passes a load test. A quick check is to put a set of jumper cables to the battery from a good battery and see if everything works.
If the main fuse is blown you may need to have the electrical system inspected for a major short.

Thanks and I hope that his helps.
Steve

check the main fuse,if good check battery cables.










TIM............

It is weird but i will check the main fuse or its called battery fuse under the hood by the battery or in fuse block (box)