BOMBARDIER RALLY 200 2003 Shop Manual page 76

Section 03 ENGINE
Subsection 02 (TROUBLESHOOTING)
SYMPTOM ENGINE TURNS OVER BUT FAILS TO START.
CONDITION NORMAL USE.
Test/Inspection
SYMPTOM HIGH ENGINE OPERATING TEMPERATURE.
CONDITION NORMAL USE.
Test/Inspection
SYMPTOM STARTER TURNS, BUT ENGINE DOES NOT CRANK.
CONDITION NORMAL USE.
Test/Inspection
03-02-16
1. Check items of ENGINE DOES NOT START — NO SPARK AT SPARK PLUG.
2. Check spark plug.
a. Define spark plug (no spark) or wrong spark plug gap.
Readjust gap and clean spark plug or replace.
3. Check for fuel on spark plug.
a. Flooded engine (spark plug wet when removed).
Do not overchoke. Remove wet spark plug, turn ignition switch to OFF and crank
engine several times. Install clean dry spark plug. Start engine following usual
starting procedure.
4. Check engine compression.
a. Insufficient engine compression.
Replace defective part(s) (ex.: piston, ring(s), etc.).
b. Valve seat worn and/or otherwise damaged.
Repair by performing valve guide procedure (refer to CYLINDER AND HEAD).
Readjust valve clearance.
1. Check if cooling system shows any failure (see COOLING SYSTEM).
a. System is leaking.
Repair and/or replace damaged part(s).
2. Check condition and heat range of spark plug.
a. Melted spark plug tip or inadequate heat range.
Install recommended spark plug (refer to TECHNICAL DATA).
3. Check air inlet and outlet of the CVT cover.
a. Air circulation is clogged (overheating).
Clean air circulation from contamination.
b. Drive belt worn and/or otherwise damaged.
Replace belt with an appropriate drive belt (refer to TECHNICAL DATA).
1. Check sprag clutch on magneto.
a. Spring damaged.
Clean and/or replace sprag clutch.
b. Sprag clutch bodies worn and/or otherwise damaged.
Replace sprag clutch and ring gear at the same time.
c. Contact surface on ring gear and/or sprag clutch housing is worn or damaged.
Replace ring gear, sprag clutch and sprag clutch housing at the same time.
VMR2003_006_03_02A.FM