in trouble again

[kwikasfaki]

hello there
i have just replaced my inlet rubbers due to them leeking air and i just fired her up and there was a funny smell and now there is a knocking noise coming from the head
please could any one help

[jake]

have you dropped something into the engine by accident when changing the rubbers?!

[extonyg]

need a bit more info.........definatly didnt drop anything ye?everything bolted down ok?does the bike start and run ok?

[kwikasfaki]

i dont think i have dropped any thing in there i will take it apart an have a look.
would that do a lot of damage
its starts on the choke but when i turn choke off it just shudders and stalls
and loud knocking when running
and all bolts are as tight as they can be

[wonderpupp]

have you got the air filter on the right way round / cleaned and fresh, etc..?

You may laugh, but I had similar symptoms after doing mine, and I had managed to put the foam filter on wrong way round and not let it dry out enough.

so I stuck a K & N on there. Sorted.