Hi!
My daughter has a completely standard (still restricted) 2010 R50X with just 800 miles on the clock. It's been absolutely fine since she bought it a few months ago, but last week it suddenly developed a really loud exhaust noise.
As far as I can tell, there are now exhaust gases coming out from the small 'stub' pipe which sticks out from the downpipe and points forwards towards the battery compartment. If I use my thumb to block the end of that stub pipe, the exhaust sound goes (more-or-less) 'back to normal'. I'd guess that some kind of plug / restrictor / screw(?) has fallen out of the end of that stub-pipe.
Can anyone confirm what is supposed to be in the end of that pipe? Apart from the missing component, the rest of the exhaust system appears to be in pretty near perfect nick, so I don't want to change it.
Is there a replacement part / stopper I can buy, or maybe I could just partly (or fully) block up the hole at the end of the stub pipe? Or would that cause some other problems...?
Any advice would be greatly appreciated! :-)
Cheers,
Pete.