Section 03
TROUBLESHOOTING
Subsection 02
(ENGINE)
03-02-10
MMR2004-106_03_02A.FM
SYMPTOM
ENGINE EQUIPPED WITH RAVE VALVE DOES NOT REACH ITS FULL
OPERATING RPM (500 TO 1000 RPM SLOWER).
CONDITION
NORMAL USE.
Test/Inspection
1. Check RAVE valve pistons.
a. Valve piston(s) is (are) not screwed to the bottom.
Screw valve piston(s) to bottom.
2. Check that valve moves freely.
a. Valve stuck in closed position.
Clean.
3. Check RAVE valve stems.
a. Bent RAVE valve stem(s).
Replace.
4. Check RAVE valves.
a. Jammed valve(s).
Clean.
5. Check tension of RAVE springs.
a. Inadequate spring tension.
Replace.
6. Check RAVE pressure holes.
a. Clogged holes.
Clean.
7. Check clamps or sleeves.
a. Damaged clamp(s) or sleeve(s).
Replace.
8. Check exhaust tightness.
a. Exhaust system is leaking leading to a too low back pressure.
Replaces parts and reseal.
SYMPTOM
ENGINE EQUIPPED WITH RAVE. ENGINE HESITATES AT LOW OR MID-SPEED AND
REACHES MAXIMUM PERFORMANCE ONLY AFTER A WHILE.
CONDITION
NORMAL USE.
Test/Inspection
1. Check RAVE valve spring(s).
a. Spring tension is too low or spring(s) is (are) broken.
Replace.
2. Check RAVE valve cover red adjustment screws.
a. Adjustment screw(s) is (are) too loose.
Adjust according to ASSEMBLY PROCEDURE in appropriate engine subsections.
3. Check RAVE valve movement (RAVE movement indicator P/N 861 725 800).
a. Valve(s) is (are) stuck in open position.
Clean.
Содержание ski-doo Tundra Scandic 2004 Series
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