2001 sherco 290 cutting out

[Ft76]

Hi all looking for advice , every time I’m out and it’s wet or I go through streams etc my bike wants to cut out , the only thing that stops it is turn the chime on for a couple of seconds and it’s clear .

my wee fella comes out with me on his sherco and goes through the same stuff his bike is fine 

thoughts anyone ??

[tony27]

Start it in a dark garage & see if there is a spark escaping from a crack in the plug cap etc, once it's the easiest path due to dampness you lose all spark

Other possibility is blocked vent tube which is 1 piece with a notch cut out at the bottom, try removing the tube from 1 vent & see if a known situation still gives the problem

[Creepytheclutchmaster]

Cracks in your air box, poorly fitted air filter or perished inlet manifold. doubt it's an electrical issue if choke fixes it until the next stream splash.