Idles but wont rev up

[alantf]

Originally Posted by blaine

The filter must be checked from the inside.It can look clean from the outside and be plugged.s

Just one question. How do you see inside the filter? mine has a sort of cover at the intake end, & a solid plate at the other. In the 4 years I've had the bike, I've only been able to check it by blowing through, & checking that it "seems" to be clear. Surely there's a way to look inside, or am I missing something? :??: