When i try to start my k9 as soon as i turn the key it starts to crank the engine without touching start button ?? What could be the problem ?
As always, what happened or was done to the bike right before this happened?
Was it washed, in a rain storm? Any work done on the bike?
I'd start by disconnecting the battery for 1/2hr and while you are doing that open the right side handle bar controls and check the switches there.
check that the wire is ok, that the switch works and is not shorted to ground full time.
A shorted start button will cause this.
Pull green wire from starter
reconnect battery
turn key
If it spins then the starter solenoid spring is stuck and you'll need to pull that apart and clean and fix the spring.
If it does not spin, check for voltage on the green wire, if it is 11-12v it could be the EHC (further tests needed)
If there is not 11-12v on the green wire, turn the key off, replace wire and try to start the bike normally.
report back.