Yamaha RAPTOR YFM125RA, Service Manual, Page: 31 / 300

ENGINE SPECIFICATIONS
2-8
Shifting mechanism
Shift mechanism type Shift drum and guide bar
Shift fork thickness 4.76–4.89 mm (0.1874–0.1925 in)
Carburetor
ID mark 2PA1 00 (USA, CAN)
2PA1 10 (AUS, NZL)
Main jet #123.8
Main air jet #110
Jet needle 5DH54-1 (USA, CAN)
5DH72-2 (AUS, NZL)
Needle jet P-0M (922)
Pilot air jet 1 #85
Pilot air jet 2 #170
Pilot outlet 0.9
Pilot jet #22.5
Bypass 1 0.8
Bypass 2 0.8
Bypass 3 0.8
Standard pilot screw turns out 2–1/2 (AUS, NZL)
Valve seat size 2
Starter jet 1 #67.5
Starter jet 2 0.5
Throttle valve size #100
Float height 13.0 mm (0.51 in)
Fuel level (above the float chamber mating sur-
face) 4.0–5.0 mm (0.16–0.20 in)
Idling condition
Engine idling speed 1550–1650 r/min
CO% 3.5–4.5%
Oil temperature 55.0–65.0
°
C (131.00–149.00
°
F)
Oil pump
Oil pump type Trochoid
Inner-rotor-to-outer-rotor-tip clearance Less than 0.15 mm (0.0059 in)
Limit 0.23 mm (0.0091 in)
Outer-rotor-to-oil-pump-housing clearance 0.130–0.193 mm (0.0051–0.0076 in)
Limit 0.263 mm (0.0104 in)
Oil-pump-housing-to-inner-and-outer-rotor
clearance 0.060–0.100 mm (0.0024–0.0039 in)
Limit 0.15 mm (0.0059 in)