System Specifications
| Valve Arrangement Front to Rear | LH Intake | S-P-S-P-S-P |
| LH Exhaust | E-E-E-E-E-E | |
| RH Intake | P-S-P-S-P-S | |
| RH Exhaust | E-E-E-E-E-E | |
| Combustion Chamber Volume | 52 cc | |
| Head Gasket Thickness | 0.40 in | |
| Head Gasket Surface Finish | 1.5 micron | |
| Cylinder Head Bolts The cylinder head bolts must be replaced with new bolts. They are torque-to-yield designed and cannot be reused. | Stage 1 | 30 ft.lb |
| Stage 2 | Tighten bolts 90 degrees | |
| Stage 3 | Loosen one full turn | |
| Stage 4 | 30 ft.lb | |
| Stage 5 | Tighten 90 degrees | |
| Stage 6 | Tighten 90 degrees | |
| LH Sequence | --- | |
| RH Sequence | --- | |
| Intake Manifold | Lower Bolts | 89 in.lb |
| Upper Bolts | 89 in.lb | |
| Throttle Body Bolt and Stud | 89 in.lb | |
| Exhaust Manifold | Tightening Torque | 15 ft.lb |
| LH Sequence | --- | |
| RH Sequence | --- | |
| Exhaust Flexible Pipe To Exhaust Manifold Nuts | 30 ft.lb | |
| Camshaft Cap Bolts | Tightening Torque | 89 in.lb |
| LH Sequence | --- | |
| RH Sequence | --- | |
| Camshaft Oil Seal Retainer Bolts | 89 in.lb |