SR50 General Tech Tips
Tire Pressure
Check this often!
solo rider
Front: 24.65 psi (1.7 bar)
Rear: 27.55 psi (1.9 bar)
two-person riding.
Front: 24.65 psi (1.7 bar)
Rear: 30.45 psi (2.1 bar)
Gearbox Oil Change
1) Place oil waste pan under the left rear of the scooter.
2) Loosen drain plug. It is located on the bottom of the case, almost directly beneath the fill plug.
3) Allow oil to drain completely.
4) Replace drain plug and tighten.
5) Fill with 110cc (3.72 US fl oz.) of SAE75W-90 weight gearbox oil through the fill plug.
6) Be sure to recycle the waste oil.
Spark Plug
Type: NGK BR8 HS
Tighten to 14.75 ft-lb (20 Nm)
Do not over-tighten! Damage to cylinder head may occur!
Aprilia and logo are registered trademarks of Aprilia, S.p.A., Italy. See Legal disclaimer.