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TECHNICAL DATA
TUNDRA II LT
Engine Type
277
Maximum HP RPM
➀
± 100 RPM
6900
Carburetor Type
VM 34-443
Main Jet
190
Needle Jet
159 O-8
Pilot Jet
40
Needle Identification
– Clip Position
6DH4-2
Slide Cut-away
2.5
Float Adjustment
± 1 mm
(± .04 in)
24
(.94)
Air Screw Adjustment
± 1/16 turn
1
Idle Speed
± 200 RPM
1200
Gas Grade / Octane Number
➁
(R + M) / 2
Regular Unleaded / 87
Gas / Oil Ratio
Oil Injection
Ignition Timing BTDC
➂
mm (in)
2.52 (.099)
Engagement Speed
± 100 RPM
3100
Pulley Distance
Z
(+ 0, – 1) mm
(+0, –1/32 in)
37.0
(1-29/64)
Offset
X
± 0.4 mm
(± 1/64 in)
36.0
(1-27/64)
Y
Dimension Y must exceed X by up to 1.5 mm (1/16 in)
Drive Belt Adjustment
Deflection
mm
(in)
32
(1-1/4 )
Force
➃
kg (lbf)
6.8 (15)
Driven Pulley Preload
± 1 kg
(± 2 lbf)
3.6
(8)
Drive Chain Tension
Automatic (Spring Loaded)
Track Adjustment
Deflection
➄
mm
(in)
35 to 45
(1-3/8 to 1-3/4)
➀
Engine speed at which maximum power is achieved.
➁
In most service station pump octane number corresponds to (R + M) / 2 octane number.
➂
At 6000 RPM (engine cold) with headlamp turned on.
➃
Force applied midway between pulleys to obtain specified deflection.
➄
Deflection with a 7.3 kg (16 lb) downward pull.