I have drowned a few bikes... can take from 5 mins to a couple
of hours to get them going...
remove spark plug... lift front up to drain pipes... clean out air box..
crank motor over till no more water comes out plug hole...
check its sparking.... put plug back in & try to start..
this is when a kick start comes into it own.... solely electric
start bikes you can only try for as long as theres power..
the prob with the injected bikes... you can see if its sparking
but yer don't know if the injection is working 'water somewhere"
So carry a can of WD40/CRC etc...

If you have a DNA air filter side on the air box remove it...
even if you stop in a deep river for a length of time..water will enter the air box though the DNA side filter..

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Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...