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!