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9-2
JC2
SPECIFICATIONS
ENGINE
Items
YDRA
Description:
Engine type
4-stroke, Gasoline, OHV
Number of cylinders
Single
Displacement
357 cm
3
Bore x stroke
85 x 63 mm (3.30 x 2.48 in.)
Compression ratio
8.1:1
Rated output
8.5 kw (11.4 hp)/3500 rpm
Cooling system
Forced air-cooled
Starting system
Starter
Ignition system
TCI Magneto
Spark plug type
BPR2ES
Spark plug gap
0.7-0.8 mm (0.028-0.031 in.)
Lubrication system
Splash
Engine oil type
YAMALUBE 4-cycle oil or SAE 10W30
Engine oil capacity
1.0 L, 1000 cc (1.0 US qt)
Oil change quantity
1.0 L, 1000 cc (1.0 US qt)
TRANSMISSION
Items
YDRA
Transmission:
Type
V-belt automatic centrifugal engagement
V-belt width and outer line length
31.0 x 1010 mm (1.20 x 39.76 in.)
V-belt wear limit
27.0 mm (1.06 in.)
Governor:
Type
Oil bath flyweight
Factory speed setting
19 km/h (12 mph)
Differential/reduction gear:
Secondary reduction system helical gear
Secondary reduction ratio:
Forward 11.34:1; Reverse 15.25:1
Differential type bevel gear
Lubricant/capacity SAE 90 gear oil/355 cc
(355 mL, 0.38 US qt)
JC2-F8199-70_ENG_LIT_19626_00_81.qxd 4/4/14 1:11 PM Page 39