CARBURETOR
4-9
E
FUEL
CHECKING THE CARBURETOR
CAUTION:
Do not use steel-wire to clean the jets. This
may enlarge the jet diameters and seriously
affect performance.
Check:
•
Carburetor body
Cracks/damage
→
Replace.
Contamination
→
Clean.
•
Needle valve
Grooved wear
→
Replace.
•
Pilot screw
Bent/wear
→
Replace.
•
Main jet
Contamination
→
Clean.
•
Pilot jet
Contamination
→
Clean.
•
Main nozzle
Contamination
→
Clean.
•
Float
Cracks/damage
→
Replace.
•
Fuel passage
Clog
→
Clean.
•
Air passage
Clog
→
Clean.
NOTE:
Use a suitable cleaning solvent and blow
out clogged passages with compressed air.
WARNING
Protect your eyes with suitable safety spec-
tacles or safety goggles when using com-
pressed air.
25B-4-19
1
2
3
Summary of Contents for 25BMH
Page 48: ...FEATURES AND BENEFITS GEN INFO 1 12 E COOLING SYSTEM Fig 7 ...
Page 49: ...1 12 CARACTERISTIQUES ET AVANTAGES GEN INFO F ...
Page 50: ...1 12 MERKMALE UND VORTEILE GEN INFO D ...
Page 51: ...1 12 CARACTERÍSTICAS Y VENTAJAS GEN INFO ES ...
Page 92: ...MAINTENANCE SPECIFICATIONS SPEC 2 8 E DIMENSIONS ...
Page 156: ...GENERAL CHK ADJ 3 26 E NOTE Grease the inner cable and the lock nut 2 Apply Yamaha grease D ...
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Page 446: ...Printed on recycled paper Printed in Japan Oct 2000 1 9 1 25BMH 30HMH YAMAHA MOTOR CO LTD ...