TROUBLESHOOTING
8-1
EAS29890
TROUBLESHOOTING
The following conditions may indicate damaged shaft drive components:
TIP
Areas A, B, and C above may be extremely difficult to diagnose. The symptoms are quite subtle and
difficult to distinguish from normal vehicle operating noise. If there is reason to believe these compo-
nents are damaged, remove the components and check them.
EAS29900
CHECKING NOISES
1. Investigate any unusual noises.
▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼▼▼
The following “noises” may indicate a me-
chanical defect:
a. A “rolling rumble” noise during coasting, ac-
celeration, or deceleration. The noise in-
creases with front and/or rear wheel speed,
but it does not increase with higher engine or
transmission speeds.
Diagnosis: Possible wheel bearing damage.
Refer to “TROUBLESHOOTING CHART” on
page 8-2.
b. A “whining” noise that varies with accelera-
tion and deceleration.
Diagnosis: Possible incorrect reassembly,
too little gear backlash.
Refer to “TROUBLESHOOTING CHART” on
page 8-2.
WARNING
EWA13780
Insufficient gear backlash is extremely de-
structive to the gear teeth. If a test ride, fol-
lowing reassembly, indicates these
symptoms, stop riding immediately to mini-
mize gear damage.
c. A slight “thunk” evident at low speed opera-
tion. This noise must be distinguished from
normal vehicle operation.
Diagnosis: Possible broken gear teeth.
WARNING
EWA13790
Stop riding immediately if broken gear teeth
are suspected. This condition could result in
the shaft drive assembly locking up, causing
a loss of control and possible injury to the
rider.
▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲▲▲
2. Check:
• Drained oil
Drained oil shows large amounts of metal
particles
→
Check the bearing for seizure.
TIP
A small amount of metal particles in the oil is nor-
mal.
3. Check:
• Oil leakage
▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼ ▼▼▼
▼
▼▼▼
a. Clean the entire vehicle thoroughly, then dry
it.
b. Apply a leak-localizing compound or dry pow-
der spray to the shaft drive.
c. Road test the vehicle for the distance neces-
sary to locate the leak.
Leakage
→
Check the component housing,
gasket, and/or seal for damage.
Damage
→
Replace the component.
TIP
• An apparent oil leak on a new or nearly new ve-
hicle may be the result of a rust-preventative
coating or excessive seal lubrication.
Symptoms
Possible Causes
1. A pronounced hesitation or “jerky” movement
during acceleration, deceleration, or sus-
tained speed. (This must not be confused
with engine surging or transmission charac-
teristics.)
2. A “rolling rumble” noticeable at low speed; a
high-pitched whine; a “clunk” from a shaft
drive component or area.
3. A locked-up condition of the shaft drive train
mechanism, no power transmitted from the
engine to the front and/or rear wheels.
A. Bearing damage.
B. Improper gear backlash.
C. Gear tooth damage.
D. Broken drive shaft.
E. Broken gear teeth.
F. Seizure due to lack of lubrication.
G. Small foreign objects lodged between the
moving parts.
Summary of Contents for Grizzly550
Page 1: ......
Page 4: ......
Page 6: ......
Page 11: ...FEATURES 1 4 techsparkstudio com ...
Page 55: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 26 techsparkstudio com ...
Page 58: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 1 2 3 4 5 ...
Page 60: ...COOLING SYSTEM DIAGRAMS 2 31 EAS20420 COOLING SYSTEM DIAGRAMS 1 2 3 8 7 6 5 4 ...
Page 68: ...CABLE ROUTING 2 39 A A B B C C A A B B C C A C D E E F B 1 1 2 2 3 3 3 4 5 5 6 6 7 8 ...
Page 74: ...CABLE ROUTING 2 45 A C D B B B B E E B B E E C D A 1 2 2 2 3 3 A B B C C D E E F 4 4 4 ...
Page 76: ...CABLE ROUTING 2 47 ...
Page 79: ...techsparkstudio com ...
Page 116: ...ELECTRICAL SYSTEM 3 37 ...
Page 119: ...techsparkstudio com ...
Page 136: ...FRONT WHEELS 4 17 ...
Page 188: ...REAR ARMS AND REAR SHOCK ABSORBER ASSEMBLIES 4 69 7 6 7 6 4 3 5 2 8 8 1 ...
Page 230: ...AC MAGNETO AND STARTER CLUTCH 5 39 1 ...
Page 246: ...PRIMARY AND SECONDARY SHEAVES 5 55 ...
Page 292: ...WATER PUMP 6 11 ...
Page 302: ...THROTTLE BODY 7 9 ...
Page 334: ...REAR CONSTANT VELOCITY SHAFT ASSEMBLIES FINAL DRIVE ASSEMBLY AND REAR DRIVE SHAFT 8 31 ...
Page 337: ...techsparkstudio com ...
Page 351: ...CHARGING SYSTEM 9 14 techsparkstudio com ...
Page 355: ...LIGHTING SYSTEM 9 18 techsparkstudio com ...
Page 363: ...SIGNALING SYSTEM 9 26 techsparkstudio com ...
Page 391: ...FUEL INJECTION SYSTEM 9 54 techsparkstudio com ...
Page 395: ...FUEL PUMP SYSTEM 9 58 techsparkstudio com ...
Page 411: ...EPS ELECTRIC POWER STEERING SYSTEM for YFM5FGP YFM7FGP 9 74 techsparkstudio com ...
Page 414: ...ELECTRICAL COMPONENTS 9 77 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ...
Page 436: ...ELECTRICAL COMPONENTS 9 99 ...