After leaving the bike key on and draining the battary and charging it i keep blowing the 7.5 amp fuse and bike wont start

SOURCE: kawasai z750, keeps blowing main fuse

Hi,

To my knowledge, there are no onboard electrical/electronic components capable of shorting and blowing the fuse with out blowing any of the secondary fuse. The main fuse could possibly blow due to a short in the wiring or an exposed/frayed wire touching the body. The three most likely areas would be:

• wire harness leading to the regulator;
• wire harness leading to the fusebox; and/or
• wire harness leading to the ignition switch.

SOURCE: blows ignition fuse when key is turned on

Look for a grounded wire on the ignition switch or a break in the wiring leading to the fuse. Wiring system on motorcycles are a close system with only the battery being grounded to the frame. Any loose connections or breaks in the wires that will allow the current to jump to the frame with cause you tons of fun.

SOURCE: 10 amp fuse for headlight keeps blowing

Sounds like a bad wire arking against medal. Look for the bad wire and tape it or replace it.

SOURCE: bike wont start, fuel pump does not start when key is turned on

there is also a fuse block behind your left side case behind the tool kit box. remove the box and the is a fuse block with a 10 amp fuse for the fuel as well

SOURCE: accessory fuse keeps blowing, headlight not working

I know this sounds aomewhat general, however please give the following some thought:
Check your relays, if you have an aftermarket horn you may have a different relay. To troubleshoot unplug your headlight, unplug your horn, etc.. Turn your ignition switch to accessory only. See if the fuse pops. If it does unplug whatever added accessories you may have still have plugged in. Once you can get the fuse to stop popping, turn the ignition switch to on. Then one at a time plug you accessory, headlight, etc. back in. When you find what pops the fuse, unplug that item, start plugging in the other items, if the fuse has not popped you have potentially isolated the circuit causing the issue. Now check the wiring for loose connections, bad ground, and CHECK the relay if that item has one. Hope this helps,

JP