- Тип техники
- Бренд
Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 888
Section 02 TROUBLESHOOTING GUIDE
Subsection 01 (ENGINE (2-STROKE))
Symptom: ENGINE SUDDENLY TURNS OFF. (cont’d)
3. Piston(s) seizure on exhaust side (color on piston dome is correct).
- Kinked fuel tank vent tube. Relocate fuel tank vent tube.
- Leaks at fuel line connections or damaged fuel lines. Replace defective lines.
- Fuel does not flow through carburetor(s) (foreign particles in needle area and/or varnish formation
in carburetor(s)). Clean carburetor(s) and install new filter(s).
- Spark plug heat range is too warm. Install spark plugs with appropriate heat range (refer to
TECHNICAL DATA).
- Improper ignition timing. Adjust according to specifications (refer to TECHNICAL DATA).
- Restriction in exhaust system. Replace.
- Compression ratio is too high. Install genuine parts.
- Too low fuel octane number. Use proper fuel octane number.
- Carburetor calibration is too lean. Adjust according to specifications (refer to TECHNICAL DATA).
- Improper reed valve adjustment or damage. Adjust according to specifications (refer to appro-
priate ENGINES TYPES) and/or install BRP's recommended reed valve.
- Poor quality oil. Use XP-S injection oil.
- Leaks at air intake silencer. Replace air intake silencer grommets.
4. Melted and/or perforated piston dome; melted section at ring end gap.
- When piston reaches TDC, mixture is ignited by heated areas in combustion chamber. This is
due to an incomplete combustion of a poor quality oil. Clean residue accumulation in combustion
chamber and replace piston(s). Use XP-S injection oil.
- Spark plug heat range is too high. Install recommended dry properly gapped spark plugs (refer
to TECHNICAL DATA).
- Ignition timing is too advanced. Adjust according to specifications (refer to TECHNICAL DATA).
- Inadequate fuel quality. Use appropriate fuel.
- Carburetion is too lean. Adjust according to specifications (refer to TECHNICAL DATA).
5. Seized piston all around the circumference (dry surface).
- Lack of oil, damaged oil line or defective injection pump. Replace defective part(s).
6. Grooves on intake side of piston only.
- Oil film eliminated by water (snow infiltration in engine). This can also be caused by running
engine on choke for too long. Excessive fuel will remove the oil film on the piston and make
marks. Replace piston(s) and check if intake system leaks.
7. Piston color is dark due to seizure on intake and exhaust sides.
- Broken or loose fan belt. Replace fan belt and/or adjust its tension (refer to TECHNICAL DATA).
- Cooling system leaks and lowers coolant level. Proceed with a leakage test (refer to LIQUID
COOLING SYSTEM) and repair as required. Add coolant in cooling system until appropriate level
is reached.
- Accumulation of foreign particles in needle valve and/or main jet area. Clean carburetor(s).
8. Cracked or broken piston(s).
- Cracked or broken piston(s) due to excessive piston/cylinder clearance or engine overreving. Re-
place piston(s). Check piston/cylinder clearance (refer to TECHNICAL DATA). Adjust drive pulley
according to specifications (refer to TECHNI
CAL DATA) and/or clean pulley sheaves if they are
contaminated with greasy particles.
9. DPM manifold air vent is obstructed.
- Carburetion is too lean. Ensure prope
r air vent.
10 mmr2005-005
Ваш отзыв будет первым
Вопросы пользователей
Поиск:
по производителю
по типу техники
по модели
Сортировать:
по дате
c ответами
0