Why has my scooter started to feel rough when i ride it?

Question

its recently started feeling a bit rough like not smooth .

could it be the piston as it slows down alot up hill?

its a 2001 pugeot trekker 50.

Answer 1

Check the air in your tires

Answer 2

Is it the engine or the suspension? Does it need a valve adjustment?

Answer 3

You didnt say if you had changed the spark plug , 2 strokes can foul plugs its worth a try or have you put cheap petrol in it .Also check your 2 stroke oil have you mixed it with another i use Silkolene in an RGV250 [2stroke] good luck mate