u/AdSuccessful5532

▲ 3 r/ScooterHacking+2 crossposts

Hi everyone,

I’m having some trouble with my 2012 Peugeot Kisbee (4-stroke) and could really use some expert advice.

The situation: Previously, the scooter was running fine, hitting about 62 km/h. I recently changed the rollers to 6.0g Malossi rollers. Ever since the swap, the scooter "screams" (very high RPMs) as soon as I hit 10 km/h, but it has almost zero torque and struggles to gain speed. It feels like it's stuck in a high gear or the belt is slipping badly.

What I've noticed (see photo): Looking at the CVT with the cover off, it seems the belt is sitting very deep in the rear pulley (clutch side) while the engine is off. There is a visible gap/metal rim showing above the belt. From what I’ve gathered, it should be sitting flush at the top of the rear pulley for a proper "low gear" start.

My questions:

  1. Does the belt position in the photo look like the main cause of the high revving/slipping?
  2. Could this be caused by a weak torque spring (compression spring) that isn't pushing the pulleys together hard enough?
  3. Is it possible I accidentally pinched the belt during assembly, preventing it from rising?

I’m 100kg (220lbs), so I need that low-end take-off power. I’m taking it to a mechanic for an analysis soon, but I’d love to hear your thoughts so I don't get talked into unnecessary expensive repairs.

Thanks in advance!

u/AdSuccessful5532 — 13 days ago