PB-251
51
MAINTENANCE GUIDE
8-2 Troubleshooting guide (Continued)
Fuel system / Carburetor
Air filter 5-1
Check first.
Fuel cap / strainer 5-2
Carburetor adjustment 5-5
Carburetor leakage 5-6
Fuel tank / vent / pipe 5-3, 5-4
Carburetor metering lever 5-8
Carburetor inlet valve 5-9
Cooling air passage 7-2
Muffler / Exhaust port 7-3
Cylinder compression 7-1
CHECKING
13 12 11 10 09 08 07 06 05 04 03 02 01
Compression / Exhaust system
13 12 11 10 09 08 07 06 05 04 03 02 01
REFERENCES
Crankcase pulse passage 5-7
Cylinder 7-6
Crankcase / cylinder sealings 7-4
Piston / Piston ring 7-7
Blower
13 12 11 10 09 08 07 06 05 04 03 02 01
Fan 6-1
Fan case 6-1
Crankshaft 7-9
Crankcase ball bearings 7-10
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