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Tomos A3 S25 45km/h

Geplaatst: 30 apr 2026 15:18
door JanMBs
Hello,

I recently bought a Tomos A3 S25 moped. I'd like to convert it from 25 km/h to 45 km/h so I can keep up with my friends.

Currently, it has practically all the original parts installed: a SHA14.9 carburetor and a standard piston and cylinder.

I haven't measured the piston pin yet, but let's just say it's a 12mm.

I've seen that there are cylinder and piston kits that, as far as I understand, should fit. I'm just confused because the carburetor in those kits is always attached to the cylinder with four screws and is located on the right side.

My carburetor, however, is located in the center under the frame, and the air intake is connected to the frame.

Could someone put together a kit for me so I can convert my moped? I'm new to this and a bit confused.

Thanks and greetings from Germany