Husqvarna 2004 SMR 630, Руководство по ремонту

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C.6
N° 8000A3632 (06-04)
TROUBLES AND REMEDIES
ENGINE
Trouble Cause Remedy
Engine won't start or starts Inadequate compression
with difficulty 1. Piston seizure Replace
2. Con-rod small or big end seized Replace
3. Piston rings worn Replace
4. Cylinder liner worn Replace the cylinder
5. Low torque cylinder head nuts Tighten to correct torque settings
6. Head gasket blowing Replace
7. Spark plug loose Tighten
8. Incorrect valve play Adjust
9. Valve springs weak or seized Replace
10. Valves seized Replace
11. Incorrect decompressor adjustment Adjust
No or weak spark
1. Spark plug faulty Replace
2. Spark plug or wet Clean or dry
3. Ignition coil faulty Replace
4. H.T. leads damaged or short circuiting Check
Fuel not reaching carburettor
1. Fuel tank cap breather blocked Clean
2. Fuel tap blocked Clean
3. Fuel feed pipes blocked Clean
4. Carburettor fuel filter dirty Clean
5. Worn out float valve or, or worn out floats Replace
6. Rocker blocking float valve Free
Carburettor flooding
1. High fuel level in float bowls Adjust
2. Worn out float valve or, or worn out floats in open position Replace or free
Engine cuts out easily 1. Spark plug dirty Clean
2. Electronic control unit faulty Replace
3. Carburettor jets blocked Clean
Engine noisy Piston noise
1. Excessive play between cylinder liner and piston Replace
2. Piston ring or ring seat worn Replace
3. Excessive carbon layers inside the combustion chamber,
or on the piston top
4. Worn rocker arm Replace
5. Excessive valve play Adjust
6. Valve springs weak or seized Replace
7. Cam chain worn Replace
8. Incorrect cam chain adjustment Adjust
Crankshaf noise
1. Main bearings worn Replace
2. High radial and axial play at con-rod big end Replace
3. Crankshaft gearing damaged Replace
Clutch noise
1. Plates worn Replace
2. Excesive free play between clutch drum and drive plates Replace
Gearbox noise
1. Gears worn Replace
2. Gear splines worn Replace
Man SMR 630-2004-IMP. C 15-07-2004 16:15 Pagina C.6