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ENGINE INSPECTION
5-1
EBS20105
ENGINE INSPECTION
EBS30135
MEASURING THE COMPRESSION
PRESSURE
TIP
Insufficient compression pressure will result in a
loss of performance.
1. Measure:
• Valve clearance
Out of specification
→
Adjust.
Refer to “ADJUSTING THE VALVE CLEAR-
ANCE” on page 3-5.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Remove:
• Top cover
• Side panel (right)
• Storage compartment
Refer to “GENERAL CHASSIS (2)” on page
4-6.
4. Disconnect:
• Spark plug cap
5. Remove:
• Spark plug
NOTICE
ECB01870
Before removing the spark plug, use com-
pressed air to blow away any dirt accumulat-
ed in the spark plug well to prevent it from
falling into the cylinder.
6. Install:
• Extension “1”
• Compression gauge “2”
7. Measure:
• Compression pressure
Out of specification
→
Refer to steps (b) and
(c).
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a. With the throttle wide open, crank the engine
by pushing the start switch “
” until the read-
ing on the compression gauge stabilizes.
WARNING
EWB03200
To prevent sparking, ground the spark plug
lead before cranking the engine.
b. If the compression pressure is above the
maximum specification, check the cylinder
head, valve surfaces and piston crown for
carbon deposits.
Carbon deposits
→
Eliminate.
c. If the compression pressure is below the min-
imum specification, pour a teaspoonful of en-
gine oil into the spark plug bore and measure
again.
Refer to the following table.
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8. Install:
• Spark plug
TIP
Before installing the spark plug, clean the spark
plug and gasket surface.
9. Connect:
• Spark plug cap
10.Install:
• Storage compartment
• Side panel (right)
Extension
90890-04136
Compression gauge
90890-03081
Engine compression tester
YU-33223
1
1
2
2
Standard compression pressure
(at sea level)
650–1000 kPa (6.5–10.0 kgf/cm²,
92.4–142.2 psi)
Compression pressure (with oil applied into the
cylinder)
Reading
Diagnosis
Higher than without oil
Piston ring(s) wear or
damage
→
Repair.
Same as without oil
Piston, valves, cylinder
head gasket, or piston
ring(s) possibly defec-
tive
→
Repair.
T
R
.
.
Spark plug (reused)
Specified angle 30°–45°
Summary of Contents for 2016 Grizzly yfm700gplg
Page 6: ......
Page 8: ......
Page 11: ...IDENTIFICATION 1 2 ...
Page 37: ...ENGINE SPECIFICATIONS 2 6 Air induction system Solenoid resistance 18 22 Ω ...
Page 58: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 EBS30023 LUBRICATION DIAGRAMS 6 7 8 9 3 4 3 2 1 5 ...
Page 60: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 1 2 3 4 5 ...
Page 62: ...COOLING SYSTEM DIAGRAMS 2 31 EBS20021 COOLING SYSTEM DIAGRAMS 1 2 3 10 9 8 6 7 5 4 ...
Page 78: ...CABLE ROUTING 2 47 Front and rear brake hoses F 3 F 3 F 3 3 I G H 4 4 B C D 2 E D 2 A 1 ...
Page 80: ...CABLE ROUTING 2 49 ...
Page 83: ......
Page 119: ...PERIODIC MAINTENANCE 3 36 A Headlight left and right B Handle mounted light b a 1 A b a 1 B ...
Page 120: ...PERIODIC MAINTENANCE 3 37 ...
Page 197: ...REAR ARMS AND REAR SHOCK ABSORBER ASSEMBLIES 4 74 7 9 8 9 7 3 5 4 5 3 6 2 10 10 1 ...
Page 198: ...REAR ARMS AND REAR SHOCK ABSORBER ASSEMBLIES 4 75 ...
Page 203: ...ENGINE INSPECTION 5 2 Top cover Refer to GENERAL CHASSIS 2 on page 4 6 ...
Page 244: ...ELECTRIC STARTER 5 43 a b b 1 2 3 ...
Page 316: ...AIR INDUCTION SYSTEM 7 9 EBS20057 AIR INDUCTION SYSTEM 3 4 1 2 3 4 1 2 ...
Page 352: ...REAR CONSTANT VELOCITY SHAFT ASSEMBLIES FINAL DRIVE ASSEMBLY AND REAR DRIVE SHAFT 8 31 ...
Page 355: ......
Page 365: ...ELECTRIC STARTING SYSTEM 9 10 ...
Page 369: ...CHARGING SYSTEM 9 14 ...
Page 417: ...FUEL PUMP SYSTEM 9 62 ...
Page 434: ...ELECTRICAL COMPONENTS 9 79 1 2 3 5 7 8 9 10 11 12 13 14 15 16 17 18 19 4 6 ...
Page 454: ...ELECTRICAL COMPONENTS 9 99 ...
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Page 469: ......
Page 470: ......