MAINTENANCE SPECIFICATIONS (ENGINE)
2-4
Automatic centrifugal clutch
Clutch shoe thickness limit 2.1 mm (0.08 in)
Clutch housing inside diameter limit 125.5 mm (4.94 in)
Clutch-in revolution 2200–2600 r/min
Clutch-stall revolution 4200–4800 r/min
V-belt
V-belt width limit 19.0 mm (0.75 in)
Drivetrain
Primary reduction ratio 1
Transmission type V-belt automatic
Transmission ratio 2.192–0.740 : 1
Secondary reduction ratio 9.559 (50/17 39/12)
Weight outside diameter limit 19.5 mm (0.77 in)
Compression spring free length limit 140.4 mm (5.53 in)
Air filter
Air filter element Oil-coated paper element
V-belt filter element Wet element
Fuel injector
Resistance 12.0
Idling condition
Engine idling speed 1200–1400 r/min
O
2
feedback control Active
Engine temperature 75–85 °C (167–185 °F)
CO% 0.0–0.5 %
Exhaust gas sampling point Muffler tail pipe
Fuel line pressure (at idle) 300–390 kPa (3.0–3.9 kgf/cm², 43.5–56.6 psi)
Throttle grip free play 3.0–7.0 mm (0.12–0.28 in)
B7JF8197E1.book Page 4 Tuesday, June 29, 2021 2:28 PM
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