Yamaha UMAX Service Manual page 28

Air filter
Type
Fuel pump
Pump type
Fuel line pressure
Fuel injector
Model/quantity
Resistance
ENGINE SPECIFICATIONS (YUM1A/YUM2A)
2-5
Oil spread over pleated paper + urethane foam
pre filter
Electrical
246–254 kPa (2.46–2.54 kgf/cm², 35.7–36.8 psi)
J0B1 00/1
12.0 Ω