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Dear all, my kymco is now 7 years old. And since last last summer, it seems to stink of petrol. Literally walking within a few meters of it, the air smells strongly.

Whilst there seems to be no leak on the ground, I cleaned with a scrubbing sponge what looked like congealed petrol vapour from the area around the back near where you lift the seat up. I think that helped, but its coming back. But most recently, I'm seeing what looks like (petrol?) seeping out - as indicated by the yellow line in the attached picture.

I know that I have over filled the tank slightly, on many occasions over the last 7 years of ownership. I always try and put as much petrol in as possible, to cover the daily trips I make. But when I looked more closely tonight at the petrol station, it seems there's a protective area around the petrol entrance like a drip tray, when perhaps petrol might settle. Otherwise i was thinking maybe this occasional overspill of petrol may have gathered and pooled inside the moped (under the tank?) and just got really smelly and too much of it, over the 7 years. I even thought about perhaps making a small hole somewhere, if appropriate, to drain any out. But perhaps the garage should take care of this?

It looked pretty black and gunky in the whole area above the rear wheel (no mud guard) so maybe petrol has gradually been settling and mixing over things here too?

What should I do?

Many thanks!

nobody, was just for at night, although if it illuminated during the day then who cares nobody would notice

If interested, here's the low down on my frustrating day...

First thanks Hoolander for all the information. Unfortunately right now I'm not in a position to be able to do those things as a) I simply don't have the time (am finishing assignments for the last year of a postgrad course) and b) this is my only form of transport at the moment and as such need to get it fixed asap, which unfortunately means taking it to a shop.     ...Had this happened any other time then I would have spent a while looking into all those other possibilities as I would like to become much more self reliant to fix things and troubleshoot them.

So, four and a half hours later and a cut finger, of trying to replace a spark plug, it's done. And unsuccessful.

I finally managed to get the old (15 month) spark plug out with the wrench socket. The end of it did look black. Not oily but definately black all round the tip of the thread.  ...off to Halfords I went, bought the nearest one that was recommended to me (called a NGK C7HSA when the one recommended for agility 125 is apparently an CR7HSA - the guy said the R stands for resistive and won't make any difference)

Got home, put the new one in, wasn't too sure about how to secure the rubber cap back into the whole and within a few seconds had broken the cable off that feeds into this rubber cap. (as you'll see in the attached pictures).

While I was there holding a lead with just wires sticking out of it and the new spark plug in it's socket, I thought I would hold them together and try starting the moped. No luck, not even a spark.

I tried reputting the cable back into the rubber cap and plugging this back into the spark plug socket. Still no luck. (It was a case of screwing the exposed cable into the cap to connect that back up again)

Now unfortunately I'll have to take it to a shop, as I presume it wasn't the spark plug at fault, even though the old one was black. That means I'll be cycling across town for the next few days as I even find a gap to take it to the dealer (or my local car mecanic, wonder if he will do it?)

The attached pictures show my old spark plug and the cable that I had accidently snapped out of the rubber plug socket.

Still interested in your insight to the situation... perhaps there was something I still did wrong with regards to the new spark plug?

Thanks.

Thanks, that service manual clarified things somewhat as was having alot of trouble locating which one was the spark plug cap, as they didn't show it in the picture with the cap on it.   Now I'm stuck again, I've put the cylinder into the socket and put a screw driver through the cylinder to lever it round with force but it will not budge. Any more pressure and I'll bend the screw driver. Should I get out an old impact wrench I have somewhere and try that? I'm at this stage (see photo attached)

Thanks I shall attempt the spark plug tomorrow. Failing that though I think I'll have to take it to the dealer because I don't know how to do all the other things and this is my only transport at the moment so need it fixed fast.

Thanks very much for the link to the manuals. I had a look through some and couldn't find Agility 125 as such. Instead I found something called a B&W which looked reasonably similiar, and that said to taken the central front cover off. Well since I didn't see a cover at the front, I guess I'll have to take the whole thing off somehow. Does sound too accessable. Let's just hope it is behind that cover!