SL 204




The 125 cc engine, SL 204 model, comes from a totally new design to meet the requirements of the ICC and super ICC categories.The experience made while manufacturing the previous 125 cc models (rotary valve and reed valve) and twin-cylinder 250 cc, allowed to implement improved manufacturing concepts.The new design allowed us to build an engine that is more compact and has an optimal weight distribution.In fact, compared to previous models, a 15% reduction on the overall weight was obtained, corresponding to an engine weight of 17.8 Kg in stock configuration.

Specification:
Manufacturer

Model
Homologation timeframe
Intake
Cooling
Stroke Bore
Displacement cm3
Conrod (lenght)
Piston
Ring #
Center tranfer port
Front-side transfer ports
Rear-side transfer port
Exaust port
Clutch

Transmission/oil quantity
Ignition
Ignition advance - mm
Spark plug
Premix - 4%

Severi Racing Kart & C. S.r.l. Maranello (MO)
SL 204
2004-2009 27/M/09 01/01/VO
Reed valve
Liquid cooled
54.00 x 54.40
124.58
113 mm
1 cast
1
126°
127°
134°
195°
dry clutch, 6 friction plates, 5 ergal

6 speed gearbox / 350 cm3
PVL
1,5/1,8
NGK B10EG
ELF 909/976 HTX