The starter button on my vuka will not start the scooter . The starter itself works if shortened The Battery fuse blows When the starter is pressed the wires from the brake starts melting I

SOURCE: Starter dragging problem

Two things come to mind, other than an internal problem with the starter. Diconnect the battery and take the small cover off the solenoid. pull the plunger and spring out and check the 2 internal contacts and the copper washer on the plunger for a badly burned or worn condition. Rebuild kits are available for some models. If not, you can dress up the contacts and the washer. Push the plunger in by hand and see that it hits both contacts at the same time.
Another possibility is the starter clutch. Usually when these fail the starter spins without turning the engine over, but I have seen them cause the symptom you described. Replacement involves removing the starter and dissasembly of the drive end of the starter, but since you were savvy enough to take the initial steps you mentioned, I know you can handle it.

SOURCE: 30 amp main fuse blows when the key is turned on.

Can be "nasty problem, for it can mean DEATH, if as you attempt traffic manouvre & it blows !-(As safety precaution , & this TIP would be useful to most all Bikers>Call to friendly POLARIS ATV Dealer & ask for Automatic Re Settable 20 AMP PROTECTOR ( tHIS FITS THE 500 sPORTSMAN A T V & as far back as the 350L 2 Cycle Firebreathing A T V ()Standard Equipment )-Wire that in from POSITIVE Supply on to your loom, & attch its earth ( Negative cable to NEGATIVE > - on Your Battery!--That done, procede to your RecRegulator Unit &Examine Likely "Melting of Delrin (Nyloc, White looking plastic connector plug to terminals of Rectifier/Regulator , Test Output from Alternator., Ensure ALL Eaths have been attended properly, by Unscrewing, & Shining through the Paintwork Refit, tighten & Apply Silicone Sealant ( So that when You "Power Clean" the Motorcycle You wont be "Degrading the EARTHS again!--Now Ride!--If the Loom Loom, near steering head happens to "Short out" The POLARIS Re Settable Fuse Link & Sealed in waterproof covering, will Re Set & then You get chance to further investigate at Your workshop!!Arm yourself with Voltohmyst , or Multimeter OOR mini pointer that can sense Current Flowing, check out ALL Swithes ( Disconnect rear brake light switch & front one by way of unplugging supply leads ( Just possible that You have intermittant short in one of them!--Did You happen to note IF You were turning slightly to Left or Right when Fuse Blew?--Well, look then for "Stress areas for wiring looms, as at Steering Head Stem region, Open the Sheath with Razor Blade & attempt to pull wires apart slightly , then EXAMINE RFOR>bare leads !---With Multimeter You could slowly "ISOLATE" components & IF You had reference to WIRING CHART You then could Painstakingly TRACE EACK LEAD & ENSURE it has no "LEAKAGE "--Best Of Luck & "StayUpright" -Des.

SOURCE: HONDA CBR 125R WILL NOT START WITHOUT BUMP START

I had the same problem with my 636. It turned out to be just a cable problem. Try to see if all the electric cables work correctly and connected.

Good Luck,
Elad.

SOURCE: Bike won't start

so where did you find the bad ground, and if I wire the negitive side directly to the frame can that be a permanant fix? Myne is doing the exact same thing

SOURCE: i have a yamaha aerox scooter and it keeps blowing

if you recently add an accessories such as troub light, halo light, horns etc etc double check their wires there is a loose connection maybe both wire are having contact or a strip wire is touching the scooters chasiss, hope this help