BOMBARDIER ski-doo Tundra Scandic 2004 Series, Shop Manual

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Section 03 TROUBLESHOOTING
Subsection 02 (ENGINE)
03-02-4
MMR2004-106_03_02A.FM
SYMPTOM PISTON RING AND CYLINDER SURFACES ARE SCRATCHED.
CONDITION NORMAL USE.
Test/Inspection 1. Check oil quality.
a. Poor quality oil.
Use BOMBARDIER injection oil.
2. Check injection pump and its hoses.
a. Inadequate injection pump adjustment and/or defective hoses.
Adjust pump according to specifications (refer to ENGINE) and/or replace hoses.
SYMPTOM
ENGINE DOES NOT OFFER MAXIMUM POWER AND/OR DOES NOT REACH
MAXIMUM OPERATING RPM.
CONDITION NORMAL USE.
Test/Inspection 1. Check spark plug condition and gap.
a. Fouled spark plugs or wrong spark plug gap.
Replace or readjust gap.
2. Check if there is water in fuel.
a. There is water in fuel.
Drain fuel system, then fill with appropriate fuel.
3. Check items listed in ENGINE RUNS OUT OF FUEL
(refer to FUEL AND OIL SYSTEMS subsection).
4. Check carburetor adjustments and cleanliness.
a. Inadequate carburetor adjustments or dirt accumulation.
Adjust according to specifications (refer to TECHNICAL DATA) or clean.
5. Check drive belt.
a. Worn belt.
Replace belt if width is 3 mm (1/8 in) less than nominal dimension
(refer to TECHNICAL DATA).
6. Check track adjustment.
a. Too much tension and/or improper alignment.
Align track and adjust its tension to specifications (refer to TECHNICAL DATA).
7. Check drive pulley.
a. Improper calibration screw adjustments (TRA pulley) and/or worn bushing(s).
Adjust according to specifications (refer to TECHNICAL DATA) and/or replace
bushing(s).
8. Check driven pulley.
a. Worn bushing and/or spring tension.
Replace spring and/or adjust its tension according to specifications
(refer to TECHNICAL DATA).