Scooter speed too high after throttling?

I got an unrestricted Gillera SP Runner 50 and now I want to limit it to 50 km/h. I've already gotten it to 50 km/h with spacers, but the revs are much too high at around 11,500 rpm, and it's much too loud. How can I fix this problem? Thanks in advance 🙂

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migebuff
11 months ago

This is only logical, because with the spacer ring you have only throttled the transmission, but not the engine power. This is as if you were driving full gas permanently in the first gear with a switching vehicle.

If I remember correctly, the runner had a throttle orifice in front of the carburetor, which greatly reduces the passage. In principle, it would be possible to limit the speed via the CDI and a gas slide stop, but I do not know whether this was installed at the Runner factory.

migebuff
11 months ago
Reply to  Kevin8394

At an ordinary CDI you can usually not set anything, which is simply put in place of the old one.

MuraccinisSF
7 months ago

Mine turns up to 9000 itself scooter

I had bought a CDI from a scooter workshop for 50 euros, which is locked at 9000.

Mountain down also 9200

migebuff
11 months ago

I don’t know if there was a choke in your work. If this is the case and it has been exchanged for an open one, then the reconstruction will already have an impact on the speed.