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Snowmobile Yamaha Phazer PZ50 (2007-2008 year). Instruction - part 16

2-52

INSP

ADJ

CLUTCH

Specifications

Model: PZ50M

G Green

R Red

Y Yellow

È Elevation

~ 800 m

(~ 2,500 ft)

600 ~ 1,400 m

(2,000 ~ 4,500 ft)

1,200 ~ 2,000 m

(4,000 ~ 6,500 ft)

1,800 ~ 2,600 m

(6,000 ~ 8,500 ft)

2,400 ~ 3,000 m

(8,000 ~ 10,000 ft)

É Engine idle speed

1,800 ± 100 r/min

←

Ê Engagement r/min

Approx. 4,100 r/min

←

Approx. 4,300 r/min

←

Ë Shift r/min

Approx. 11,300 r/min

←

Ì Secondary reduc-

tion ratio (number
of links)

19/41 (80 L)

←

18/41 (80 L)

17/41 (80 L)

←

Í Primary sheave

spring

90501-605G7

←

Î Color

G-Y-G

←

Ï Free length

74.1 mm (2.92 in)

←

Ð Preload

245 N (25 kg, 55 lb)

←

Ñ Spring rate

27.0 N/mm
(2.75 kg/mm,
154 lb/in)

←

Ò Wire diameter

6.0 mm (0.236 in)

←

Ó Outside diameter

60.0 mm (2.36 in)

←

Ô Weight (ID)

8DN-17605-30
(8DN10)

←

Õ Weight rivet

Steel 13.9 (OUT)
Steel 13.9 (IN)

Steel 13.3 (OUT)
Steel 13.9 (IN)

Steel 13.3 (OUT)
Steel 13.3 (IN)

Steel 10.3 (OUT)
Steel 10.3 (IN)

Steel 10.3 (OUT)
None (IN)

Ö Weight bushing

VESPEL TP-8549

←

× Roller outer dia.

15.0 mm (0.591 in)

←

Ø Roller bushing

VESPEL TP-8549

←

Ù Pri. clutch shim

None

←

Ú Secondary sheave

spring

90508-55007

←

Û Color

←

Ü Free length

85 mm (3.35 in)

←

Ý Preload rate

55° (B-1)
931 kg·mm/rad

←

Þ Wire diameter

5.5 mm (0.217 mm)

←

ß Outside diameter

66.0 mm (2.60 in)

←

À Sec. torque cam

angle

37°

←

Á Sec. clutch shim

1.0 mm (0.039 in)

× 2

←

2-53

INSP

ADJ

CLUTCH

Specifications

Model: PZ50VT “USA/Canada”

Blue

Y Yellow

È Elevation

~ 800 m

(~ 2,500 ft)

600 ~ 1,400 m

(2,000 ~ 4,500 ft)

1,200 ~ 2,000 m

(4,000 ~ 6,500 ft)

1,800 ~ 2,600 m

(6,000 ~ 8,500 ft)

2,400 ~ 3,000 m

(8,000 ~ 10,000 ft)

É Engine idle speed

1,800 ± 100 r/min

←

Ê Engagement r/min

Approx. 3,500 r/min

←

Approx. 3,700 r/min

Ë Shift r/min

Approx. 11,300 r/min

←

Ì Secondary reduc-

tion ratio (number
of links)

19/45 (82 L)

←

18/45 (82 L)

17/45 (82 L)

←

Í Primary sheave

spring

90501-556G7

←

Î Color

Y-L-Y

←

Ï Free length

73.4 mm (2.89 in)

←

Ð Preload

196 N (20 kg, 44 lb)

←

Ñ Spring rate

24.5 N/mm
(2.5 kg/mm,
140 lb/in)

←

Ò Wire diameter

5.5 mm (0.217 in)

←

Ó Outside diameter

60.0 mm (2.36 in)

←

Ô Weight (ID)

8GC-17605-00
(8GC00)

←

Õ Weight rivet

Steel 17.2 (OUT)
Steel 17.2
(CENTER)
Steel 13.9 (IN)

Steel 17.2 (OUT)
Steel 13.9
(CENTER)
Steel 13.9 (IN)

Steel 13.9 (OUT)
Steel 13.9
(CENTER)
Steel 13.3 (IN)

Steel 13.3 (OUT)
Steel 13.3
(CENTER)
Steel 10.3 (IN)

Steel 10.3 (OUT)
Steel 10.3
(CENTER)
Aluminum 10.3 (IN)

Ö Weight bushing

VESPEL TP-8549

←

× Roller outer dia.

14.5 mm (0.571 in)

←

Ø Roller bushing

VESPEL TP-8549

←

Ù Pri. clutch shim

None

←

Ú Secondary sheave

spring

90508-58007

←

Û Color

←

Ü Free length

85 mm (3.35 in)

←

Ý Preload rate

50° (A-1)
1,030 kg·mm/rad

←

Þ Wire diameter

5.8 mm (0.228 in)

←

ß Outside diameter

66.0 mm (2.60 in)

←

À Sec. torque cam

angle

37°

←

Á Sec. clutch shim

1.0 mm (0.039 in)

× 2

←

2-54

INSP

ADJ

CLUTCH

Specifications

Model: PZ50VT “Europe”/PZ50MP

Go Gold

Blue

È Elevation

~ 800 m

(~ 2,500 ft)

600 ~ 1,400 m

(2,000 ~ 4,500 ft)

1,200 ~ 2,000 m

(4,000 ~ 6,500 ft)

1,800 ~ 2,600 m

(6,000 ~ 8,500 ft)

2,400 ~ 3,000 m

(8,000 ~ 10,000 ft)

É Engine idle speed

1,800 ± 100 r/min

←

Ê Engagement r/min

Approx. 3,100 r/min

←

Approx. 3,200 r/min

Ë Shift r/min

Approx. 11,300 r/min

←

Ì Secondary reduc-

tion ratio (number
of links)

18/45 (82 L)

←

17/45 (82 L)

←

Í Primary sheave

spring

90501-526G4

←

Î Color

L-Go-L

←

Ï Free length

72.9 mm (2.87 in)

←

Ð Preload

147 N (15 kg, 33 lb)

←

Ñ Spring rate

19.6 N/mm
(2.0 kg/mm,
112 lb/in)

←

Ò Wire diameter

5.2 mm (0.205 in)

←

Ó Outside diameter

60.0 mm (2.36 in)

←

Ô Weight (ID)

8GC-17605-00
(8GC00)

←

Õ Weight rivet

Steel 17.2 (OUT)
Steel 17.2
(CENTER)
Steel 17.2 (IN)

Steel 17.2 (OUT)
Steel 13.9
(CENTER)
Steel 13.9 (IN)

Steel 13.9 (OUT)
Steel 13.9
(CENTER)
Steel 13.3 (IN)

Steel 13.3 (OUT)
Steel 13.3
(CENTER)
Steel 10.3 (IN)

Steel 10.3 (OUT)
Steel 10.3
(CENTER)
Aluminum 10.3 (IN)

Ö Weight bushing

VESPEL TP-8549

←

× Roller outer dia.

14.5 mm (0.571 in)

←

Ø Roller bushing

VESPEL TP-8549

←

Ù Pri. clutch shim

None

←

Ú Secondary sheave

spring

90508-58007

←

Û Color

←

Ü Free length

85 mm (3.35 in)

←

Ý Preload rate

50° (A-1)
1,030 kg·mm/rad

←

Þ Wire diameter

5.8 mm (0.228 in)

←

ß Outside diameter

66.0 mm (2.60 in)

←

À Sec. torque cam

angle

37°

←

Á Sec. clutch shim

1.0 mm (0.039 in)

× 2

←

2-55

INSP

ADJ

CLUTCH/GEAR SELECTION

The clutch may require tuning depending upon
where the machine will be operated and the desired
handling characteristics. The clutch can be tuned
by changing the engagement and shifting speeds.
Clutch engagement speed is defined as the engine
speed at which the machine first begins to move
from a complete stop.
Clutch shifting speed is defined as the engine
speed reached when the machine has travelled
800 m (2,500 ft) after being started at full-throttle
from a dead stop.
Normally, when a machine reaches shifting speed,
the vehicle speed increases but the engine speed
remains nearly constant. Under unfavorable condi-
tions (wet snow, icy snow, hills, or rough terrain),
however, engine speed may decrease after the
shifting speed has been reached.

È Engine speed
É Good condition
Ê Clutch shifting speed
Ë Clutch engagement speed
Ì Starting position
Í Distance travelled 800 m (2,500 ft)

GEAR SELECTION

The reduction ratio of the driven gear to the drive
gear must be set according to the snow conditions.
If there are many rough surfaces or unfavorable
snow conditions, the drive/driven gear ratio should
be increased. If the surfaces are fairly smooth or
better snow conditions exist, decrease the ratio.

Gear ratio chart
The drive and driven gears and the chains shown in
the gear ratio chart are available as options. The
figures containing a decimal point represent the
drive/driven gear ratios, while the bottom numbers
designate the number of links in the chain.

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