Losing top end revs

[Racingmule]

Hey everyone, i have a 29cc stroker and its seem to have lost its top end revs, the air filter came
off at the last meet and i prob went round a few laps before i saw it. It may have sucked through
some crap but the bore looks ok. It only does it when it warms up, plenty of low end torque just
no top end revs. I put a new ring in it about 10-12 tanks ago and was fine but ever since the filter came off its not been itself. On closer inspection i found that the fuel line goes through a rubber bung into the fuel tank
and where it goes in it looks like the fuel line has shrunk due to being in there too tight. This
in combination with dirty clunk might restrict flow enough creating a constant vacuum in
the line. I will get some more fuel line and try with a clean clunk and drill out the bung so
its not too tight. Any ideas?

Cheers

[sickboy]

Hi well did you change the stock petrol lines for the fg ones i hope so and clean the carb out might be some dirt in there

[Racingmule]

I have just found out from the previous owner of my buggy that the head is prob about 18mnths old so i think is just getting a bit tired. I did however fix the fuel line prob. Heres what it looks like.