[spddemon]

um... wow, that doesn't sound good at all....

when you rev does the tick/knock speed up with the motor? have you changed the exhaust?

sounds to me like you either have a bad exhaust leak or you dropped a valve. the knock/tick sounds a lot like when my dirt bike dropped a valve....

i am no mechanic, so i really hope i am wrong... Checked the oil lately? when was the last time it was changed? if you decide to change, try to catch all oil out of the bike and look at it really closely to see if you get a lot of metal fragments....

 

[spddemon]

well, if its a rod or a valve you are looking at an engine overhaul... to some extent. both can do extensive damage to the block. the rod can come through the side of the block. a valve can drop all the way down the cylinder and severely damage the cylinder and piston and possibly the combustion chamber in the head

a good place to check would be to pull your spark plugs... all of them should be a light brown around the electrode.. dark black, wet, or gas soaked would indicate that piston is not functioning properly...

regardless, you should take it to the dealership or a bike shop and have them take a look. it could be something serious and the more you run it as it is, the more damage you could be doing to the block. you might get lucky and they wont charge you a lot to take a look.. you can tell them that you will authorize any work to be down with out a written estimate and any time/parts they put into the bike without your approval will not be paid for.

 

[spddemon]

hmm. 2k just to look at it? that seems a bit high. i would call up some other shops...