Good day dear roller community. I bought myself a used cpi aragon s-line. I sent it by freight forwarder and had only the info starts badly and has confessed 3 years. So scooter bought carburettor cleaned (ultrasound) . Exhaust rusted and varnished. Jumps now really well and on top of whether estarter or kick starter. Now to the problem: the engine gets no speed. When I have the vario on it just goes off the clutch (vane belt down) . Thereupon vario rolling controlled everything seems to be ok (are about 6.5g). New carburettor and cdi ordered today replaced. Petrol lines and filter new. Jumps well however the engine does not get to speed. What else can it be?