Bike stalling in the rain

Before you all shout "USE THE SEARCH", I had a look but couldn't find anyone with the same problem!
So today I hopped out on the bike at lunch to do some shopping, got caught in a little downpour. The bike engine ended up cutting out whenever it idled at traffic lights. I ended up having to hold the throttle open to stop this from happening.
I'm aware of the spark plug + rain issue, but I'm wondering if this is the same issue as I didn't seem to lose power to the engine when riding, it just didn't want to know when the revs went down.
I'm not particularly mechanically minded so I may be entirely wrong but I was hoping someone might help point me in the right direction.
It's a naked K3 SV650.
A Fender Extender has been ordered =p

[Spiderman]

sounds like water in the plug to me tbh. It could be water getting to oe of the block connectors under the tank too but i'd start with the front plug and rule that out first.

[dyzio]

Originally Posted by cF^

A Fender Extender has been ordered =p

Get some silicone grease from Maplins as well.

More here.

Do you have a Fenda Extender fitted to the front Mudguard ? , the front plug should also have a rubber flap covering it and a grommet to slide into the top of the cylinder once the lead is fitted onto the Spark Plug .

Thnx chaps, there's a maplins just down the road so i'll pop round and get some silicon goop tomorrow evening, hopefully that should sort it.

You sure it isn't too low idle speed set? On my old ER5 I had to hold the throttle open when I stopped in the snow or else it would die.

Originally Posted by Warthog

You sure it isn't too low idle speed set?

+ 1 when its dry start it up, let it get up to normal operating temp, check the idle speed, some one may of fiddled with the idle screw when you were parked up, idle should be 1300 - 1500 rpm, i use 1500 rpm, to stop it stalling when cold.

Idle speed is one of the first places to look at for sure . My Idle sometimes needs adjusting twice a year , once when it gets really cold and back down a little when it gets really hot .

Regularly it's idling at about 1400. Had a quick look at the bike and at first glance I can't see the spark plug, is it hidden away behind the radiator? Anyone got a pic?

Yea, the front spark plug is hidden behind the rad - you should be able to see the lead connected to it, follow that in

as for the idle speed, thats a fine speed...i think the idle speed should be between 1300 and 1500 rpm