Originally Posted by valleyboy

Right, my guess would be the front cylinder flooded with water.

The SV has a tendancy to let water get into the front spark plug, and thus under heavy rain, it'll cut out, making your V-Twin into a single cylinder.. which aint fun!

You need to undo the botom retaining bolt on your radiator, and hinge it forward slightly, then you should be able to see a lead going into the cylinder head, this is where the spark plug is. Pull the lead out (needs a bit of force occasionaly) then find a rag and a stick of some sort, poke the rag into the spark plug hole, and try and soak up as much water as you can, then get some WD40 and spray some into there... put the cable back in, making sure it goes in correctly (read owners manual to find out) put blt back on for the rad.. and that should cure that..

there is also a drain hole on the side of the cylinder, think its the right side as you sit on the bike.. this tends to clog... try using a pipe cleaner to free it up..