Service manual

Table Of Contents
ENGINE TOP END 5-1
5
Engine Top End
Table of Contents
Exploded View................................... 5-2
Specifications .................................... 5-8
Special Tools and Sealant ................. 5-10
Camshaft Chain Tensioner ................ 5-12
Camshaft Chain Tensioner
Removal .................................... 5-12
Camshaft Chain Tensioner
Installation ................................. 5-13
Rocker Case...................................... 5-14
Rocker Case Removal ................. 5-14
Rocker Case Installation .............. 5-15
Rocker Arm Removal................... 5-16
Rocker Arm Installation................ 5-17
Rocker Arm Inspection................. 5-17
Rocker S haft Diameter
Measurement ............................ 5-18
Camshaft ........................................... 5-19
Camshaft Removal ...................... 5-19
Camshaft Installation ................... 5-19
Camshaft Assembly ..................... 5-20
Cam Wear Inspection .................. 5-20
Camshaft Bearing Wear
Inspection.................................. 5-21
KACR Inspection.......................... 5-22
KACR Removal............................ 5-22
KACR Installation......................... 5-23
Camshaft Chain Removal ............ 5-23
Camshaft Chain Installation ......... 5-24
Camshaft Chain Guide Wear
Inspection.................................. 5-27
Cylinder Head.................................... 5-28
Cylinder Compression
Measurement ............................ 5-28
Cylinder Head Removal ............... 5-29
Cylinder Head Installation............ 5-29
Cylinder Head Cleaning............... 5-30
Cylinder Head Warp Inspection ... 5-30
Valves ................................................ 5-31
Valve Clearance Inspection ......... 5-31
Valve Clearance Adjustment........ 5-31
Valve Removal ............................. 5-31
Valve Installation .......................... 5-31
Valve Guide Removal .................. 5-31
Valve Guide Installation ............... 5-32
Valve-to-Guide Clearance
Measurement ............................ 5-32
Valve Seat Inspection .................. 5-33
Valve Seat Repair (Valve
Lapping) .................................... 5-33
Cylinder and Piston ........................... 5-38
Cylinder Removal......................... 5-38
Piston Removal............................ 5-38
Cylinder, Piston Installation.......... 5-38
Cylinder Wear Inspection............. 5-40
Piston Wear Inspection ................ 5-40
Piston/Cylinder Clearance
Inspection.................................. 5-40
Piston Ring, Piston Ring Groove
Wear Inspection ........................ 5-41
Piston Ring Groove Width
Inspection.................................. 5-41
Piston Ring Thickness Inspection 5-41
Piston Ring End Gap Inspection .. 5-42
Exhaust System................................. 5-43
Spark Arrester Cleaning............... 5-43
Muffler and Exhaust Pipe
Removal .................................... 5-43
Muffler and Exhaust Pipe
Installation................................. 5-44
Exhaust System Inspection.......... 5-45