2-4MAINTENANCE SPECIFICATIONS SPECItem Standard LimitClutch housing thrust clearance 0.17~0.23 mm (0.007~0.009 in) …Clutch housing radial clearance 0.030~0.055 mm (0.001~0.002 in) …Clutch release method Inner push, cam push …Transmission:Main axle deflection limit … 0.01 mm (0.0004 in)Drive axle deflection limit … 0.01 mm (0.0004 in)Shifter:Shifting type Cam drum and guide bar …Guide bar bending limit … 0.05 mm (0.0020 in)Kick starter type: Kick and ratchet type …Air filter oil grade (oiled filter): Foam-air-filter oil or equivalent oil …Carburetor: USA, CDN EUROPE AUS, NZ, ZAType/Manufacturer PWK38S/ ← ← …KEIHINI.D. mark 1P89 60 1P86 40 1P87 50 …Main jet (M.J.) #178 #180 #178 …Main air jet (M.A.J) #200 ← ← …Jet needle-clip position (J.N.) N3EW-2 N3EW-3 N3EW-2 …Main nozzle (N.J.) ø2.9 ← ← …Cutaway (C.A.) #7 ← ← …Pilot jet (P.J.) #50 #52 #50 …Pilot air screw (P.A.S.) 1 2-1/4 1-1/4 …(for reference only)Valve seat size (V.S.) ø3.8 mm ← ← …(0.15 in)Starter jet (G.S.) #85 ← ← …Power jet (P.W.J.) #50 ← ← …Float arm height (F.H.) 5.5~7.5 mm ← ← …(0.22~030 in)Reed valve:Thickness* 0.42 mm (0.017 in) …Valve stopper height 10.3~10.7 mm (0.406~0.421 in) …Valve bending limit … 0.2 mm (0.008 in)Cooling:Radiator core size:Width 107.8 mm (4.24 in) …Height 240 mm (9.45 in) …Thickness 32 mm (1.26 in) …Radiator cap opening pressure 95~125 kPa …(0.95~1.25 kg/cm2, 13.5~17.8 psi)Radiator capacity (total) 0.63 L (0.55 Imp qt, 0.67 US qt) …Water pump:Type Single-suction centrifugal pump …
