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Yamaha F4B Service Manual

Yamaha F4B
202 pages
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POWR
Power unit 7
Power unit (check and adjustment) ................................. 7-1
Checking the compression pressure ......................................... 7-1
Checking the ignition timing ...................................................... 7-1
Checking the CDI unit air gap ................................................... 7-1
Adjusting the CDI unit air gap .................................................... 7-2
Checking the valve clearance ................................................... 7-2
Adjusting the valve clearance .................................................... 7-3
Manual starter .................................................................... 7-5
Removing the manual starter .................................................... 7-7
Disassembling the manual starter ............................................. 7-7
Checking the manual starter ..................................................... 7-7
Checking the spiral spring ......................................................... 7-8
Assembling the manual starter .................................................. 7-8
Installing the manual starter .................................................... 7-10
Adjusting the start-in-gear protection cable ............................. 7-10
Measuring the starter rope ...................................................... 7-10
Power unit assembly ...................................................... 7-11
Removing the power unit ......................................................... 7-12
Installing the power unit ........................................................... 7-14
Flywheel magnet ............................................................. 7-18
Removing the flywheel magnet ............................................... 7-19
Installing the flywheel magnet ................................................. 7-19
Crankcase ........................................................................ 7-21
Removing the oil pump ............................................................ 7-23
Removing the oil seal housing ................................................ 7-23
Removing the crankcase ......................................................... 7-23
Checking the crankcase .......................................................... 7-24
Checking the rotor assembly ................................................... 7-24
Checking the oil strainer .......................................................... 7-25
Checking the oil seal housing .................................................. 7-25
Installing the crankcase ........................................................... 7-25
Installing the oil pump .............................................................. 7-26
Installing the oil seal housing .................................................. 7-26
Cylinder head .................................................................. 7-27
Removing the cylinder head .................................................... 7-29
Disassembling the cylinder head ............................................. 7-29
Checking the cylinder head ..................................................... 7-30
Checking the rocker arm ......................................................... 7-30
Checking the push rod ............................................................ 7-30
Checking the valve spring ....................................................... 7-30
Checking the valve .................................................................. 7-31
Checking the valve guide ........................................................ 7-31

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Yamaha F4B Specifications

General IconGeneral
BrandYamaha
ModelF4B
CategoryOutboard Motor
LanguageEnglish

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