I was going to service the bike yesterday, first order; change the oil. I couldn't as the sump plug was stuck on. The spanner started stripping the bolt a little (It's a tad rusty) so I gave it in as a bad job. Is there any way I can crack the plug off easily? New ones are cheap so I don't care about saving the old one.

Let's get the silly question out of the way first - were you turning it the right way? Don't forget if it's upside-down the spanner seems to go the other way.

The important thing to not do is strip the thread. If that happens the sump has to come off and be Heli-coiled.

Use the right sized socket, get the engine nice and warm so the alloy expands, and hit the end of the socket bar with the heel of your hand. Jarring it off is usually more succesful than just leaning on the spanner.

Righty Tighty, Lefty Loosey. So if i'm lying directly under the bike, what direction would I be required to turn it then? As it's reversed i'd presume right?

The actual bolt is rusted, it may be rusted to the actual sump, but i'm not sure. It doesn't really look like it. As it's rusted it seems to be stripping when I turn it. I've been trying while the engine is warm so the oil flows more freely when (if) it comes out, but I shall give the jarring method a shot. Cheers!

Edit: Isn't there other ways of getting a stripped bolt off? Like welding a non-stripped one to it and turning that one, or just shearing it off?

Anti-clockwise = off.

Clockwise = on.

This applies to most nuts and bolts but not all it would only be the reverse in special applications.

If you're lying under the bike looking up at the plug, it's exactly the same as if you were looking down at a bolt that's on top of the bike - so it sounds like you might be turning it the wrong way - possibly! Sounds like you need a second opinion cos any suggestion of how to get the bolt to turn will only make matters worse if you're going the wrong way!

When you're sure you know which way to turn it, as FF said, use a socket not a spanner as that won't round the corners of the bolt. There are ways to get more leverage - as a female I've often had to find them - but I hesitate to suggest them as I have visions of you stripping the thread in the sump because of my advice!

A six sided socket is best ....

A Metrinch socket is best. Failing that, a Walldrive socket. Failing that a normal 6-sided socket. 12-points are pretty harsh on stripped bolts.