2. Thoroughly clean all the gasket surfaces and crankcase mating surfaces.
3. Check:
- Crankcase. Cracks/damage → Replace.
- Oil delivery passages. Obstruction → Blow out with compressed air.
Checking the crankcase (Yamaha FZ1)
1. Thoroughly wash the crankcase halves in a mild solvent.
2. Thoroughly clean all the gasket surfaces and crankcase mating surfaces.
3. Check:
2. Thoroughly clean all the gasket surfaces and crankcase mating surfaces.
3. Check:
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Disassembling the crankcase
Separating the crankcase
Installing the crankshaft position
Removing the crankshaft position sensor
Installing the valves
Checking the valve lifters
Checking the valve springs
Checking the valve seats
Checking the valves and valve guides
Removing the valves and valve springs
Separating the crankcase
Installing the crankshaft position
Removing the crankshaft position sensor
Installing the valves
Checking the valve lifters
Checking the valve springs
Checking the valve seats
Checking the valves and valve guides
Removing the valves and valve springs
Checking the bearing and oil seals
Assembling the crankcase
Removing the connecting rods and pistons
Removing the crankshaft assembly
Checking the cylinder and piston
Checking the piston rings
Checking the piston pins
Checking crankshaft big end bearings
Installing the connecting rod and piston
Checking the crankshaft
Assembling the crankcase
Removing the connecting rods and pistons
Removing the crankshaft assembly
Checking the cylinder and piston
Checking the piston rings
Checking the piston pins
Checking crankshaft big end bearings
Installing the connecting rod and piston
Checking the crankshaft
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