2007-2009 Suzuki LTZ90 factory service manual, Page 218Get this manual
SERVICING INFORMATION TROUBLESHOOTING ENGINE WILL NOT START OR IS HARD TO START Symptom, possible causes and remedy 1) Compression
or replaceClean or replaceReplaceClean or replace 2) Plug not sparking Fouled spark plug Wet spark plug Defective CKP sensor
Defective CDI unit Defective ignition coil Open-circuited wiring connections Defective generator coil3) No fuel reaching
the carburetor Clogged fuel hose Clogged or defective fuel valve Defective carburetor needle valve Clogged fuel filterENGINE
STALLS OFTEN Symptom, possible causes and remedy Fouled spark plug Defective CDI unit Defective ignition coil Clogged fuel
hose Clogged carburetor jets Clogged exhaust pipe Damaged cylinder head gasket Valve clearance out of adjustment CleanReplaceReplaceCleanCleanCleanReplaceAdjust.