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ENGINE TOP END 5-1
5
Engine Top End
Table of Contents
Exploded View................................... 5-2
Specifications .................................... 5-6
Special Tools and Sealant ................. 5-8
Clean Air System............................... 5-10
Air Suction Valve Removal........... 5-10
Air S uction Valve Installation........ 5-10
Air S uction Valve Inspection ........ 5-10
Vacuum Switch Valve Removal ... 5-10
Vacuum Switch Valve Installation 5-10
Vacuum Switch Valve Test ........... 5-11
Clean Air System Hose
Inspection.................................. 5-11
Cylinder H ead Cover ......................... 5-12
Cylinder Head Cover Removal .... 5-12
Cylinder Head Cover Installation . 5-12
Camshaft C hain Tensioner ................ 5-14
Camshaft Chain Tensioner
Removal.................................... 5-14
Camshaft Chain Tensioner
Installation ................................. 5-14
Camshaft, Camshaft Chain ............... 5-15
Camshaft Removal ...................... 5-15
Camshaft Installation ................... 5-15
Camshaft, Cam shaft Cap Wear ... 5-16
Camshaft Runout......................... 5-17
Cam Wear.................................... 5-17
Camshaft Chain Removal............ 5-17
Cylinder Head.................................... 5-18
Cylinder Compression
Measurement ............................ 5-18
Cylinder Head Removal............... 5-19
Cylinder Head Installation............ 5-19
Cylinder Head Warp..................... 5-20
Va lves ................................................ 5-21
Valve Clearance Inspection ......... 5-21
Valve Removal ............................. 5-21
Valve Installation .......................... 5-21
Valve Guide Removal .................. 5-21
Valve Guide Installation ............... 5-22
Valve-to-Guide Clearance
Measurement (Wobble
Method)..................................... 5-22
Valve Seat Inspection .................. 5-23
Valve Seat Repair ........................ 5-23
Cylinder, Pistons................................ 5-28
Cylinder Removal......................... 5-28
Cylinder Installation...................... 5-28
Piston Removal............................ 5-28
Piston Installation......................... 5-29
Cylinder Wear .............................. 5-30
Piston Wear ................................. 5-30
Piston Ring, Piston Ring Groove
Wear.......................................... 5-31
Piston Ring Groove Width............ 5-31
Piston Ring Thickness ................. 5-31
Piston Ring End Gap ................... 5-32
Throttle Body Holder.......................... 5-33
Throttle Body Holder Installation.. 5-33
Muffler................................................ 5-34
Muffler Body Removal.................. 5-34
Exhaust Pipe Removal................. 5-34
Muffler Body and Exhaust Pipe
Installation ................................. 5-34