[Solved] Can't reach top speed

[NorWeWa]

Sounds like a CVT issue. Rollers to light, or belt wore out or wrong belt. 

[Stig / Major Tom]

Speedometer is in KPH, not MPH? Yes?

Stig

[darkshvein]

Speedometer is in KPH, not MPH? Yes?
Stig

Yes, kilometers per hour.

[darkshvein]

Sounds like a CVT issue. Rollers to light, or belt wore out or wrong belt.

I already changed the pads and the belt. Old and new belt - same issue.
I will check rollers, thanks.

[darkshvein]

Well. Thanks all. Variator was repaired in service.
I guess, that this detail was a reason for slow speed:
degraded stopper ramp plate 22133-lba2-e00

[Ruffus]

Do you have more details or pics from that. Would be interesting. Txs.

[mousejunks]

Well. Thanks all. Variator was repaired in service.
I guess, that this detail was a reason for slow speed:
degraded stopper ramp plate 22133-lba2-e00

I also had a defective ramp plate which caused sudden acceleration issues.

[darkshvein]

Do you have more details or pics from that. Would be interesting. Txs.

As I remember, 22133-lba2-e00 this detail (screenshot)

[Ruffus]

Ah txs, got it: inner, towards motor washer on crankshaft.

[CROSSBOLT]

Ah txs, got it: inner, towards motor washer on crankshaft.

Jumping to conclude this was missing?

[Ruffus]

Makes sense, opens front pulleys further than planned, belt lowers, less power on clutch.
This bigger motors are really sensitive on their three different shaped washers.

[darkshvein]

Good day, guys.
In addition,
I replaced the expensive Mitsuboshi belt with an original one, already relatively cheap from eBay. the length is the same, visually 3-4 mm wider. The scooter is finally back to 150/7500 speed
I SO f***ing happy.
this is:
https://www.ebay.com/itm/195327459209
warning, my kymco 500i are 2010 year. (if this important)

[Stig / Major Tom]

OEM KYMCO belts are the only way to go......but owners will spend a lot of effort trying to match the size.
Close, unlike grenades, is not close enough.
Stig