Yamaha LB2 1978 - Page 96

C. Chassis
·-
Model
1V8
1V9
1FO (551), 1F1
1 F2 (543)
Steering system:
Caster
260
+-----
~
+------
Trail
45mm
-
---
"(---
Number and size of ball. in
steering head
Upper race
22 pcs. 3/16 in
-
+-----
~
Lower race
19 pcs. 1/4 in
+----
..,...._
+----
Front suspension
Front fork cushion travel
75mm
.:0--
.;----
.,.____
Front fork spring free length
359.5 mm
-
~
.;--
Front fork oil quantity and type
96 ± 4 cc (L.H.)
.,______
~
<f---
120 ±4 cc (R.H.)
.,______
.,.____
.,.____
SAE 10W/30 "SE" motor oil
- --·----
Rear suspension:
Rear
shock absorber travel 65mm
~
-
-
Rear shock absorber spring
Free length 181
mm
+-----
~
-
Wire diameter x winding diameter 6.0 mm x 37.5 mm
.;...--
+-----
-
Spring constant
Kt= 2.1 kg/mm
-
+-----
-
K2= 2.85 kg/mm
-
~
-
Swing arm free play (Limit) 1 mm
-
-
+--
Fuel tank:
Capacity
3.5 lit
..,.___
4---- .:0--
Wheel:
Tire size
(Front)
4.00-8-2PR
-
4.00-8-4PR
4.00-8-2PR
(Rear) 4.00-8-2PR
-
4.00-8-4PR 4.00-8-2PR
Tire pressure
(Front)
1.2 kg/cm
2
.,,__
-
+-----
(Rear) 1.5 kg/cm
2
..,.___
-
-
Secondary drive chain:
Type DK420
-
-
-Number of links 90
-
-
98L
Chain free play 20mm
~
-
-
Brake:
Front and Rear
Type
Drum brake
·-
-
+-----
Shoe diameter x width 110¢ x 25 mm
-
-
-
Shoe spring free length 34.5 mm
-
~
-
Lining thickness (Wear limit)
4 mm (2 mm)
-
-
-
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