SYM Red Devil / Jet Basix / Jet4R

Engine: Horizontal 12mm Honda Based (SYM Type)

Rollers 16 x 13 – Clutch Nut 39mm – Main Jet 75: 4mm type (early model) / 6mm Dellorto Type (Late model)

Factory restrictions: Dicks on exhaust, variator washer

Tyres: (Front) 120/70-12 / (Rear) 130/70-12

Early Jet4R model Front: 120/60-13 – Can replace with 110/70-13

Common faults: Small end bearing failure, oil sensor leak, oil cap breaks if over-tightened