PDF Service Manual Yamaha Vmax Venture Venom Snowmobile (1994-2006) - 8 MB
This comprehensive service manual covers Yamaha Vmax, Venture, and Venom snowmobile models from 1994 to 2006.
It provides detailed instructions for repair, maintenance, and troubleshooting.
From engine rebuilds to suspension adjustments, this guide has everything a mechanic or DIY enthusiast needs.
Follow the factory procedures to keep your snowmobile running strong for years to come.
PDF Viewer
Viewer loads when you scroll here
SHARE THIS MANUAL
Download the PDF Manual
PDF viewer loading area
Text Preview from This Manual
The text below was extracted from the visible preview pages to help you confirm the manual contents before download.
--- Page 60 ---
GEN
IMPORTANT INFORMATION INFO
1E011
IMPORTANT INFORMATION
PREPARATION FOR REMOVAL AND DISASSEMBLY
1. Remove all dirt, mud, dust, and foreign material before removal and
disassembly.
While cleaning, take care to protect the electrical parts, such as
relays, switches, motor, resistors, controllers, etc., from high pres-
sure water splashes.
2. Use proper tools and cleaning equipment.
Refer to “SPECIAL TOOLS” .
3. When disassembling the machine, keep mated parts together. This
includes gears, cylinders, pistons, and other parts that have been
“mated” through normal wear. Mated parts must be reused or
replaced as an assembly.
4. During disassembly of the machine, clean all parts and place them
in trays in the order of disassembly. This will speed up assembly
time and help ensure that all parts are reinstalled correctly.
5. Keep all parts away from any source fire.
6. Be sure to keep to the tightening torque specifications. When
tightening bolts, nuts, and screws, start with those that have lager
diameters, and proceed from the inside to the outside in a crisscross
pattern.
ALL REPLACEMENT PARTS
We recommend using genuine Yamaha parts for all replacements. Use
oil and grease recommended by Yamaha for assembly and adjust-
ments.
1-2
--- Page 61 ---
INSP
COOLING SYSTEM
ADJ
5. Place an open container under the coolant
drain bolt 1.
6. Remove:
• Coolant drain bolt
• Gasket (coolant drain bolt)
7. Drain the coolant.
NOTE:
Lift up the tail of the machine to drain the coolant.
8. Disconnect:
• Coolant hoses (rear) 1
9. Drain the coolant.
NOTE:
Lift up the front of the machine to drain the
coolant completely.
WARNING
Coolant is poisonous. It is harmful or fatal if
swallowed.
• If coolant is swallowed, induce vomiting imme-
diately and get immediate medical attention.
• If coolant splashes in your eyes, thoroughly
wash them with water and consult a doctor.
• If coolant splashes on your skin or clothes,
quickly wash it away with soap and water.
10. Remove the coolant reservoir/oil tank 1 and
drain the coolant.
11. Install:
• Coolant reservoir/oil tank
12. Inspect:
• Gasket (coolant drain bolt)
Damage → Replace.
13. Install:
• Gasket
• Coolant drain bolt
Coolant drain bolt:
13 Nm (1.3 m • kg, 9.4 ft • lb)
T.
R.
2-7
--- Page 62 ---
INSP
DRIVE V-BELT
ADJ
2. Adjust the position of the V-belt by removing
or adding a spacer 1 on each adjusting bolt 2.
V-belt position Adjustment
More than 1.5 mm
(0.06 in) above the Remove a spacer
edge
From 1.5 mm (0.06
in) above the edge to Not necessary
–0.5 mm (–0.020 in) (It is correct.)
below the edge
More than –0.5 mm
(–0.020 in) below the Add spacer
edge
3. Tighten:
• Adjusting bolt
Adjusting bolt:
10 Nm (1.0 m • kg, 7.2 ft • lb)
T.
R.
4. Inspect:
• Drive V-belt
Cracks/damage/wear → Replace.
Oil or grease on the V-belt → Check the
primary and secondary sheaves.
5. Inspect:
• Primary sheave
• Secondary sheave
Oil or grease on the primary and secondary
sheaves → Use a rag soaked in lacquer
thinner or solvent to remove the oil or
grease. Check the primary and secondary
sheaves.
6. Measure:
• Drive V-belt length a
Out of specification → Replace.
Drive V-belt length:
1,129 ~ 1,137 mm (44.4 ~ 44.7 in)
2-18
--- Page 63 ---
INSP
STEERING SYSTEM
ADJ
2E221
STEERING SYSTEM
Freeplay check
1. Check:
• Steering system freeplay
Move the handlebar up and down and back
and forth.
Turn the handlebar slightly to the right and
left.
Excessive freeplay → Check that the han-
dlebar, tie rod ends and relay rod ends are
installed securely in position. If freeplay still
exists, check the steering bearing, front sus-
pension links and ski mounting area for
wear. Replace if necessary.
2E232
Toe-out adjustment
1. Place the machine on a level surface.
2. Check:
• Ski toe-out
Point the skis forward.
Out of specification → Adjust.
Ski toe-out (a – c):
0 ~ 15 mm (0 ~ 0.59 in)
Ski stance b (center to center):
VX600ER/VT600:
1,070 mm (42.1 in)
VX600SXB:
1,040 mm (40.9 in)
A 3. Adjust:
• Ski toe-out
Adjustment steps:
• Loosen the locknuts (tie-rod) 1.
• Turn the relay rod 2 in or out until the speci-
fied toe-out is obtained.
• Tighten the locknuts (tie-rod) 1.
Locknut (rod end):
25 Nm (2.5 m • kg, 18 ft • lb)
T.
R.
B LOCTITE®
Å Left side
ı Right side
2-29
--- Page 64 ---
INSP
CARBURETOR TUNING
ADJ
2E311
Main jet selection chart
Spark plug color Diagnosis Remedy
Light tan or gray Carburetors are tuned properly.
Dry black or fluffy Mixture is too rich. Replace the main jet with the next smaller size.
deposits
White or light gray Mixture is too lean. Replace the main jet with the next larger size.
White or gray insulator Mixture is too lean. The piston Replace the piston and spark plug.
with small black or is damaged or seized. Tune the carburetors again. Begin with low-speed
grayish brown spots and tuning.
electrodes having a
bluish-burnt appearance
Melted electrodes and Mixture is too lean. The spark Check the piston for holes or seizure.
possibly a blistered plug melted. Check the cooling system, gasoline octane rating
insulator and ignition timing. After replacing the spark
Metallic deposits on plug with a colder type, tune the carburetors
insulator again. Begin with low-speed tuning.
2E321
Troubleshooting
Trouble Diagnosis Adjustment
Hard starting Insufficient fuel Add gasoline.
Excessive use of the Return the starter lever to its seated position so that
starter or choke the starter valve is fully closed.
Fuel passage is clogged • Check and, if necessary, clean the fuel tank air vent,
or frozen the fuel filter and all of the fuel passages.
• Check and, if necessary, clean the carburetor air
vents, fuel passages and the float valve.
• Clean the float chamber of any ice or water.
Overflow Adjust the fuel level.
Poor idling: Improper idling speed Adjust the engine idle speed.
• Poor performance at adjustment Refer to “Low speed tuning”.
low speeds Damaged pilot screw Replace the pilot screw.
• Poor acceleration Clogged bypass hole Clean the bypass hole.
• Slow response to Clogged or loose pilot • Remove the pilot jet, clean it with compressed air and
throttle jet then install it.
• Engine tends to stall • Make sure that the pilot jet is fully tightened.
Air leaking into the Retighten the clamp screws on the carburetor joints.
carburetor joint
Defective starter valve Clean or replace the starter valve seat.
seat
Overflow Adjust the fuel level.
2-41
--- Page 65 ---
INSP
REAR SUSPENSION
ADJ
A Spring preload (for VX600SXB)
1. Adjust:
• Spring preload
Adjustment steps:
• Turn the spring seat 1 in or out.
Spring seat Standard
distance Shorter ← → Longer
Preload Harder ← → Softer
Min. Max.
Å Length a
B 172 mm 182 mm 192 mm
(front)
(6.77 in) (7.17 in) (7.56 in)
Min. Max.
ı Length b 302 mm 312 mm 322 mm
(rear) (11.89 in) (12.28 in) (12.68 in)
WARNING
This shock absorber contains highly pressurized
nitrogen gas.
Do not tamper with or attempt to open the shock
absorber assembly.
Do not subject the shock absorber assembly to
flames or high heat, which could cause it to
explode.
Rear suspension-full rate
1. Adjust:
• Full rate adjuster
Adjustment steps:
• Loosen the nut 1.
• Move the end of the shock absorber assembly
to the desired position.
Installation
A B C
position
Spring rate
Soft Medium Hard
and damping
Standard B
NOTE:
Rotating the track will help to move the shock
absorber assembly.
CAUTION:
Be sure the left and right positions are alined.
• Tighten the nut.
Nut (full rate adjuster):
49 Nm (4.9 m • kg, 35 ft • lb)
T.
R.
2-52
--- Page 66 ---
FRONT SUSPENSION CHAS
HANDLING NOTES (VX600SXB)
WARNING
This shock absorber contains highly compressed
nitrogen gas. Before handling the shock absorber
read and make sure that you understand the
following information. The manufacturer cannot
be held responsible for property damage or per-
sonal injury that may result from improper han-
dling.
• Do not tamper or attempt to open the gas
chamber.
• Do not subject the shock absorber to flames or
any other source of high heat. This may cause
the unit to explode due to excessive gas pres-
sure.
• Do not deform or damage the gas chamber in
any way. Gas chamber damage will result in
poor damping performance.
INSPECTION
1. Inspect:
• Shock absorber 1
Oil (gas) leaks/bends/damage → Replace.
2. Inspect:
• Ski column 1
• Steering arm 2
Cracks/bends/damage → Replace.
• Bushing 3
Wear/scratches/damage → Replace.
3. Inspect:
• Control rod 1
Cracks/bends/damage → Replace.
• Bushing 2
• Collar 3
Wear/scratches/damage → Replace.
3-10
--- Page 67 ---
POWR
PRIMARY SHEAVE AND DRIVE V-BELT TR
• Tighten the spider to specification using the
bar wrench 3.
Spider:
200 Nm (20 m • kg, 145 ft • lb)
T.
R.
CAUTION:
The spider has a left-handed thread.
WARNING
• Do not operate the primary sheave until the
LOCTITE® has dried completely. Wait 24 hours
before operating the primary sheave.
• Since a high torque is required to tighten the
spider, make sure the spider, fixed sheave,
and special tool are well secured. Tighten the
spider carefully to prevent cracks and dam-
age to the sheaves and spider.
5. Install:
• Weight
Nut 1:
6 Nm (0.6 m • kg, 4.3 ft • lb)
T.
R.
NOTE:
To maintain the primary sheave balance , the
bolts 2 must be installed with their threaded
portions pointing in a counterclockwise direction,
as illustrated.
6. Install:
• Primary sheave spring 1
• Primary sheave cap 2
NOTE:
Be sure the sheave cap match mark (X) is aligned
with the spider match mark (X).
Primary sheave cap bolt:
14 Nm (1.4 m • kg, 10 ft • lb)
T.
R.
4-7
--- Page 68 ---
POWR
DRIVE CHAIN HOUSING TR
INSTALLATION
1. During installation, pay attention to the fol-
lowing.
LS Å Make sure that the bearing seals face towards the
drive chain as shown.
ı Properly install the rubber seal onto the drive chain
C1
housing, making sure that there are no gaps.
C1 C2 Be sure to install the spacers in their original
positions, otherwise the brake disc and jackshaft
will stick.
Î
Î 0.1 ~ 0.5 mm (0.004 ~ 0.020 in)
LS
Å : 1 ESSO beacon 325 grease or Aeroshell grease
#7A
C2
For the jackshaft and drive chain housing installa-
B tion, refer to “JACKSHAFT”.
B
ı
2. Fill:
• Drive chain housing oil
Refer to “DRIVE CHAIN” in CHAPTER 2.
3. Adjust:
• Drive chain slack
Refer to “DRIVE CHAIN” in CHAPTER 2.
4-18
--- Page 69 ---
POWR
BRAKE TR
Å: 10 Nm (1.0 m • kg, 7.2 ft • lb)
ı: 23 Nm (2.3 m • kg, 17 ft • lb)
Ç: 48 Nm (4.8 m • kg, 35 ft • lb)
Order Job name/Part name Q’ty Remarks
Brake caliper and parking brake re- Remove the parts in the order listed below.
moval
Brake fluid Drain.
1 Brake hose 1
2 Brake caliper assembly 1
3 Cotter pin 2
4 Parking brake cable 1
5 Pin 1
6 Pin 1
7 Collar 2
8 Spring 2
9 Brake shoe 2
For installation, reverse the removal proce-
dure.
4-30
--- Page 70 ---
POWR
SLIDE RAIL SUSPENSION TR
Å: 24 Nm (2.4 m • kg, 17 ft • lb)
ı: 72 Nm (7.2 m • kg, 52 ft • lb)
Ç: 75 Nm (7.5 m • kg, 54 ft • lb)
å: For VT600
Order Job name/Part name Q’ty Remarks
b Rear pivot arm 1
c Bushing 2
d Collar 1
e Collar 1
f Rear pivot arm bracket 1
g Collar 1
h Circlip 2
i Suspension wheel 2
j Wheel bracket 1
k Rear axle 1
l Guide wheel 3
m Collar 2
n Tension adjuster 2
o Collar 1
p Collar 1
q Sliding frame 2
For assembly, reverse the disassembly pro-
cedure.
4-41
--- Page 71 ---
CYLINDER HEAD AND CYLINDER ENG
5E011
INSPECTION
1. Eliminate:
• Carbon deposits
(from the combustion chamber)
Use the rounded scraper 1.
CAUTION:
Do not use a sharp instrument. Avoid damaging
or scratching the surface.
2. Inspect:
• Cylinder head water jacket
Crust of minerals/rust → Clean.
3. Measure:
• Cylinder head warpage
Out of specification → Resurface.
Warpage limit:
0.03 mm (0.0012 in)
• Straight edge 1
• Thickness gauge 2
4. Eliminate:
• Carbon deposits
(from the cylinders)
Use the rounded scraper 1.
CAUTION:
Do not use a sharp instrument. Avoid damaging
or scratching the surface.
5. Eliminate:
• Carbon deposits
(from the piston crown and ring grooves)
6. Inspect:
• Piston crown
Burrs/nicks/damage → Replace.
5-7
--- Page 72 ---
OIL PUMP, CRANKCASE AND CRANKSHAFT ENG
3. Fill:
• Gear room 1
Recommended oil:
YAMALUBE 2-cycle
Gear room capacity:
20 cm3 (0.64 Imp oz, 0.62 US oz)
CAUTION:
Before installing and torquing the crankcase bolts,
be sure to check that the crankshaft turns
smoothly.
4. Tighten:
• Bolts (crankcase)
NOTE:
Tighten the bolts in order, starting with the lowest
number, and torque the bolts in two stages.
Bolt (crankcase):
First:
T.
R.
13 Nm (1.3 m • kg, 9.4 ft • lb)
Final:
27 Nm (2.7 m • kg, 19 ft • lb)
5-18
--- Page 73 ---
CARBURETORS CARB
CARBURETION
CARBURETORS
Order Job name/Part name Q’ty Remarks
Carburetors removal Remove the parts in the order listed below.
Intake silencer Refer to “FUEL PUMP”.
1 Carburetor heating knob 1 Before removing the carburetors, make sure
that the carburetor heating lever is turned to
“OFF”.
2 Carburetor switch (T.O.R.S.) lead 2
3 Clamp screw 6 Loosen.
4 Clamp 1 Unfasten.
5 Carburetor heating hose 2
6 Starter cable 1
7 Fuel hose 3
8 Carburetor 3
For installation, reverse the removal proce-
dure.
7-1
--- Page 74 ---
– +
SWITCH INSPECTION ELEC
ELECTRICAL
SWITCH INSPECTION
SWITCH INSPECTION
Use a pocket tester to check the terminals for
continuity. If the continuity is not as specified at
any point, replace the switch.
Pocket tester:
90890-03112, YU-03112
NOTE:
• Set the pocket tester to “0” before starting a
test.
• When testing the switch for continuity, the
pocket tester should be set to the “× 1” Ω range.
• When checking a switch, turn it on and off a few
times.
INSPECTING A SWITCH SHOWN IN THE
R Br/L L/Y L/B MANUAL
OFF The terminal connections for switches (main
ON
switch, handlebar switch, engine stop switch,
light switch, etc.) are shown in a chart similar to
the one on the left.
R Br/L
This chart shows the switch positions in the left
L/Y L/B column and the switch lead colors in the top row.
For each switch position, “ ” indicates the
terminals with continuity.
The example chart shows that:
1 There is continuity between the blue/yellow
and blue/black leads when the switch is set to
“OFF”.
2 There is continuity between the red and brown/
blue leads when the switch is set to “ON”.
8
8-1
--- Page 75 ---
– +
IGNITION SYSTEM ELEC
TROUBLESHOOTING
NO SPARK OR WEAK SPARK.
Check the spark plug gap.
OK OUT OF SPECIFICATION
Repair or replace the spark plug.
Check the spark plug cap resistance.
OK OUT OF SPECIFICATION
Replace the spark plug cap.
Check the ignition coil resistance.
OK OUT OF SPECIFICATION
Replace the ignition coil.
Check the stator coil.
OK FAULTY
Replace the CDI magneto.
Check the engine stop switch, throttle
switch, carburetor switch and main
switch.
OK FAULTY
Replace the handlebar switch (right), carburetor
switch, and/or main switch.
Correct the connection and/or replace
the CDI unit.
8-12
--- Page 76 ---
– +
SIGNAL SYSTEM ELEC
FUEL METER DOES NOT OPERATE.
Check the lighting coil.
OK FAULTY
Replace the CDI magneto.
Check the fuel sender.
OK FAULTY
Replace the fuel sender.
Check for voltage on the condenser coupler.
OK OUT OF SPECIFICATION
Correct the connection and/or replace the rectifier/
regulator.
Check the condenser for VX600SXB.
OK OUT OF SPECIFICATION
Replace the condenser.
Check the fuel meter.
OK DOES NOT MOVE
Replace the fuel meter.
Correct the connection for the fuel
meter system.
BACK BUZZER DOES NOT SOUND.
Check the gear position switch.
OK FAULTY
Replace the gear position switch.
Check the lighting coil.
OK OUT OF SPECIFICATION
Replace the CDI magneto.
Check the DC back buzzer.
OK DOES NOT SOUND
Adjust and/or replace the DC back buzzer.
Correct the connection and/or replace
the rectifier/regulator.
8-23
--- Page 77 ---
GENERAL SPECIFICATIONS SPEC
SPECIFICATIONS
GENERAL SPECIFICATIONS
Model VX600ER VX600SXB VT600
Model code number 8DG 8EA 8EB
Dimensions:
Overall length 2,760 mm (108.7 in) 2,970 mm (116.9 in)
Overall width 1,200 mm (47.2 in) 1,170 mm (46.1 in) 1,200 mm (47.2 in)
Overall height 1,300 mm (51.2 in) 1,085 mm (51.2 in) 1,300 mm (51.2 in)
Weight 242 kg (531 lb) 226 kg (498 lb) 270 kg (595 lb)
Minimum turning radius:
Clockwise 4.0 m (13.1 ft) 3.8 m (12.5 ft) 4.0 m (13.1 ft)
Counterclockwise 4.0 m (13.1 ft) 3.8 m (12.5 ft) 4.0 m (13.1 ft)
Engine:
Engine type Liquid cooled 2-stroke, piston port
Induction system Crankcase reed valve
Cylinder arrangement Forward inclined parallel 3-cylinder
Displacement 593 cm3 (36.2 cu.in)
Bore × Stroke 65.0 × 59.6 mm (2.56 × 2.35 in)
Compression ratio 6.6 : 1
Maximum horse power 8,500 r/min
Maximum torque 8,250 r/min
Starting system (Manual model) Recoil hand starter
(Electric model) Electric and recoil hand starter
Lubrication system Separate lubrication (YAMAHA AUTOLUBE)
Engine oil:
Type YAMALUBE 2-cycle oil
Tank capacity 3.0 L (2.6 Imp qt, 3.2 US qt)
Drive chain housing oil:
Type Gear oil API “GL-3” SAE #75 or #80
Capacity 0.25 L (8.80 Imp oz, 8.5 US oz)
Coolant:
Total amount 3.4 L (3.0 Imp qt, 3.6 US qt) 3.6 L (3.2 Imp qt, 3.8 US qt)
Reservoir tank capacity 0.17 L (0.15 Imp qt, 0.18 US qt)
Fuel:
R+M
Type Regular gasoline (Pump Octane ;88)
Research Octane; 93 (for Europe) 2
Tank capacity 44.3 L (9.74 Imp gal, 11.70 US gal)
Carburetor:
Type/Quantity TM31/3
Manufacturer MIKUNI
Spark plug:
Type BR9ES
Manufacturer NGK
Gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
9-1
--- Page 78 ---
MAINTENANCE SPECIFICATIONS SPEC
HIGH ALTITUDE SETTINGS
VX600ER/VX600SXB/VT600
Tempera- –40°C –29°C –18°C –7°C 4°C 16°C
ture (–40°F) (–20°F) (0°F) (20°F) (40°F) (60°F)
Altitude
MJ #1 #142.5 MJ #1 #140 MJ #1 #137.5 MJ #1 #135 MJ #1 #132.5 MJ #1 #130
MJ #2#3 #140 MJ #2#3 #137.5 MJ #2#3 #135 MJ #2#3 #132.5 MJ #2#3 #130 MJ #2#3 #127.5
0 ~ 100 m
PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5
(0 ~ 330 ft) PS 2.0 PS 2.0 PS 2.0 PS 2.0 PS 2.5 PS 2.5
JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-3.0
MJ #1 #141.3 MJ #1 #138.8 MJ #1 #136.3 MJ #1 #133.8 MJ #1 #131.3 MJ #1 #128.8
MJ #2#3 #138.8 MJ #2#3 #136.3 MJ #2#3 #133.8 MJ #2#3 #131.3 MJ #2#3 #128.8 MJ #2#3 #126.3
100 ~ 500 m
PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5
(330~ 1,600 ft) PS 2.0 PS 2.0 PS 2.0 PS 2.0 PS 2.5 PS 2.5
JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-2.5 JN 6DHN50-2.5
MJ #1 #140 MJ #1 #137.5 MJ #1 #135 MJ #1 #132.5 MJ #1 #130 MJ #1 #127.5
MJ #2#3 #137.5 MJ #2#3 #135 MJ #2#3 #132.5 MJ #2#3 #130 MJ #2#3 #127.5 MJ #2#3 #125
500 ~ 1,000 m
PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5
(1,600 ~ 3,300 ft) PS 2.0 PS 2.0 PS 2.0 PS 2.5 PS 2.5 PS 3.0
JN 6DHN50-3.0 JN 6DHN50-3.0 JN 6DHN50-2.5 JN 6DHN50-2.5 JN 6DHN50-2.5 JN 6DHN50-2.5
MJ #1 #138.8 MJ #1 #136.3 MJ #1 #133.8 MJ #1 #131.3 MJ #1 #128.8 MJ #1 #126.3
MJ #2#3 #136.3 MJ #2#3 #133.8 MJ #2#3 #131.3 MJ #2#3 #128.8 MJ #2#3 #126.3 MJ #2#3 #123.8
1,000 ~ 1,500 m
PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #45
(3,300 ~ 4,900 ft) PS 2.0 PS 2.0 PS 2.5 PS 2.5 PS 3.0 PS 3.0
JN 6DHN50-3.0 JN 6DHN50-2.5 JN 6DHN50-2.5 JN 6DHN50-2.5 JN 6DHN50-2.0 JN 6DHN50-2.0
MJ #1 #136.3 MJ #1 #133.8 MJ #1 #131.3 MJ #1 #128.8 MJ #1 #126.3 MJ #1 #123.8
MJ #2#3 #133.8 MJ #2#3 #131.3 MJ #2#3 #128.8 MJ #2#3 #126.3 MJ #2#3 #123.8 MJ #2#3 #121.3
1,500 ~ 2,000 m
PJ #42.5 PJ #42.5 PJ #42.5 PJ #42.5 PJ #45 PJ #45
(4,900 ~ 6,600 ft) PS 2.0 PS 2.5 PS 2.5 PS 3.0 PS 3.0 PS 3. 1/4
JN 6DHN50-2.5 JN 6DHN50-2.5 JN 6DHN50-2.0 JN 6DHN50-2.0 JN 6DHN50-2.0 JN 6DHN50-1.5
MJ #1 #133.8 MJ #1 #131.3 MJ #1 #128.8 MJ #1 #126.3 MJ #1 #123.8 MJ #1 #121.3
MJ #2#3 #131.3 MJ #2#3 #128.8 MJ #2#3 #126.3 MJ #2#3 #123.8 MJ #2#3 #121.3 MJ #2#3 #118.8
2,000 ~ 2,500 m
PJ #42.5 PJ #42.5 PJ #42.5 PJ #45 PJ #45 PJ #45
(6,600 ~ 8,200 ft) PS 2.5 PS 2.5 PS 3.0 PS 3.0 PS 3. 1/4 PS 3. 1/4
JN 6DHN50-2.0 JN 6DHN50-2.0 JN 6DHN50-2.0 JN 6DHN50-1.5 JN 6DHN50-1.5 JN 6DHN50-1.5
MJ #1 #131.3 MJ #1 #128.8 MJ #1 #126.3 MJ #1 #123.8 MJ #1 #121.3 MJ #1 #118.8
MJ #2#3 #128.8 MJ #2#3 #126.3 MJ #2#3 #123.8 MJ #2#3 #121.3 MJ #2#3 #118.8 MJ #2#3 #116.3
2,500 ~ 3,000 m
PJ #42.5 PJ #42.5 PJ #45 PJ #45 PJ #45 PJ #45
(8,200 ~ 9,800 ft) PS 2.5 PS 3.0 PS 3.0 PS 3. 1/4 PS 3. 1/4 PS 3. 1/4
JN 6DHN50-1.5 JN 6DHN50-1.5 JN 6DHN50-1.5 JN 6DHN50-1.5 JN 6DHN50-1.0 JN 6DHN50-1.0
[Production spec] MJ#1: #136.3 MJ#2, 3: #133.8 PJ: #42.5 JN: 6DHN50-3 PAJ: 1.0 PS: 2.0
#: Main jet number JN: Jet needle clip position PS: Pilot screw turns out PJ: Pilot jet number
NOTE:
• Jet needle (JN) position.
Refer to the following information for the Jet needle shims installation.
JN:2(STD) JN:1.5 JN:1 JN:0.5
• Oxygenated fuels
Use one size larger Main Jet than specified.
9-12
--- Page 80 ---
CHAPTER 1. POWER TRAIN ............................................... 2-16