| Step | | Procedure & Parts & Tools |
| 1 |
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TURN OFF TANK
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| 2 |
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DISCONNECT FUEL LINE
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| 3 |
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OPEN TANK STRAP
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| 4 |
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REMOVE TANK
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| 5 |
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PULL THE BONNET OFF THE CAGE
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| 6 |
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REMOVE THE 4 ACORN NUTS
| Ratchet-Socket metric 10mm |
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| 7 |
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LIFT THE CAGE OFF THE ENGINE
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| 8 |
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REMOVE THE 4 BOLTS FROM THE SHROUD
| Ratchet-Socket metric 10mm |
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| 9 |
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PULL THE SHROUD FROM THE ENGINE
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| 10 |
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LOCATE MUFFLER AND LOOSEN NUT ON MUFFLER CLAMP
| Ratchet-Deep socket standard 1/2 in |
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| 11 |
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SLIDE CLAMP DOWN
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| 12 |
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LOOSEN BOLT HOLDING MUFFLER
| Wrench-1/2 in |
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| 13 |
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REMOVE BOLT AND 2 WASHERS
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| 14 |
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PULL TO REMOVE MUFFLER
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| 15 |
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DISCONNECT OXYGEN SENSOR PLUG
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| 16 |
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LOCATE SPARK PLUG WIRE
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| 17 |
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PULL TO DISCONNECT SPARK PLUG WIRE
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| 18 |
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UNSCREW SPARK PLUG
| Ratchet-Socket standard 13/16 in |
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| 19 |
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LOCATE AIR BREATHER AND REMOVE FRONT COVER
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| 20 |
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PULL SIDE LATCHES
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| 21 |
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REMOVE AIR BREATHER COVER
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| 22 |
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REMOVE WING NUT
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| 23 |
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REMOVE PRE FILTER
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| 24 |
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REMOVE AIR FILTER
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| 25 |
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REMOVE 2 BOLTS FROM BACK COVER
| Ratchet-Socket metric 10mm |
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| 26 |
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REMOVE 2 SCREWS FROM BACK COVER
| Screwdriver-phillips |
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| 27 |
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PULL TO REMOVE BACK COVER
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| 28 |
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REMOVE 2 BOLTS TO REMOVE BRACKET
| Ratchet-Socket metric 10mm |
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| 29 |
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REMOVE LEFT BOLT FROM THROTTLE PLATE
| Ratchet-Socket metric 10mm |
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| 30 |
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PULL THROTTLE WIRE FROM CARBUREATOR LINKAGE
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| 31 |
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PULL TO SLIDE CARBUREATOR FROM INTAKE MANIFOLD BOLTS
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| 32 |
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REMOVE RIGHT BOLT FROM THROTTLE PLATE (NOTE THE POSITION OF BOLT, WHEN REPLACING THE HEADS RETURN TO SAME POSITION)
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| 33 |
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DISCONNECT THE SPRING FROM THE THROTTLE PLATE
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| 34 |
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SET THROTTLE PLATE TO THE SIDE
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| 35 |
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PULL THE WIRE CONNECTOR TO DISCONNECT THE HARNESS
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| 36 |
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REMOVE THE 2 BOLTS HOLDING IGNITION MODULE
| Ratchet-Socket metric 10mm |
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| 37 |
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PULL THE BOLTS FROM THE ENGINE
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| 38 |
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PULL THE IGNITION MODULE FROM THE ENGINE
| Ratchet-Socket metric 10mm |
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| 39 |
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REMOVE THE 4 BOLTS FROM THE INTAKE MANIFOLD
| Ratchet-Socket metric 10mm |
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| 40 |
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PULL TO REMOVE THE INTAKE MANIFOLD FROM THE ENGINE
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| 41 |
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REMOVE THE BOLT FROM THE BOTTOM OF THE CYLINDER SHROUD
| Ratchet-Socket metric 10mm |
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| 42 |
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REMOVE THE BOLT FROM THE FRONT OF THE CYLINDER SHROUD
| Ratchet-Socket metric 12mm |
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| 43 |
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PULL TO REMOVE THE CYLINDER SHROUD
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| 44 |
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REMOVE 4 BOLTS HOLDING THE EXHAUST MANIFOLD
| Ratchet-Socket metric 12mm |
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| 45 |
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PULL TO REMOVE THE EXHAUST MANIFOLD
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| 46 |
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REMOVE THE 2 BOLTS FROM THE LEFT VALVE COVER (STANDING IN THE OPERATOR POSITION)
| Ratchet-Socket metric 10mm |
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| 47 |
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PULL TO REMOVE THE VALVE COVER
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| 48 |
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REMOVE THE 2 BOLTS FROM THE ROCKER ARMS
| Ratchet-Socket metric 14mm |
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| 49 |
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PULL TO REMOVE THE ROCKER ARMS (SET ASIDE, SET ASIDE TO USE WHEN REPLACING HEAD)
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| 50 |
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PULL OUT PUSH RODS (SET ASIDE, SET ASIDE TO USE WHEN REPLACING HEAD. IF PUSH RODS ARE BENT, PURCHASE SEPARATELY)
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| 51 |
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REMOVE THE 2 ROCKER ARM STUDS (SET ASIDE TO USE WHEN REPLACING HEAD)
| Ratchet-Deep socket metric 12mm |
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| 52 |
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PULL TO REMOVE THE STUDS
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| 53 |
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PULL TO REMOVE THE ROCKER ARM GUIDE
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| 54 |
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REMOVE 5 HEAD BOLTS
| Ratchet-Deep socket metric 12mm |
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| 55 |
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PULL 5 BOLTS OUT FROM ENGINE
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| 56 |
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PULL LEFT (STANDING IN THE OPERATOR POSITION) HEAD AND HEAD GASKET FROM ENGINE
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| 57 |
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INSPECT VALVE SEATS FOR DAMAGE
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| 58 |
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MAKE SURE GASKET PIN IS STILL ON ENGINE, MAY COME OFF WITH THE HEAD, IF SO, PULL OFF HEAD AND PUSH BACK IN ENGINE
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| 59 |
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COMPLETE STEPS 35 THRU 57 TO REMOVE RIGHT (STANDING IN THE OPERATOR POSITION) SIDE HEAD
| Ratchet-Deep socket metric 12mm |
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| Ratchet-Socket metric 12mm |
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| Ratchet-Socket metric 10mm |
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| Ratchet-Socket metric 14mm |
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| 60 |
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PULL TO REMOVE AIR BREATHER HOSE (SET ASIDE TO USE WHEN REPLACING RIGHT SIDE HEAD)
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| 61 |
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PULL TO REMOVE VALVE CAP (SET ASIDE TO USE WHEN REPLACING RIGHT SIDE HEAD)
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