Jet Valve Adjustment
NOTE:
Misadjusted jet valve clearance will adversely affect emission levels. Adjust jet valve clearance before adjusting intake valve clearance.
- Before adjusting jet valve, retighten cylinder head bolts cold. See TORQUE SPECIFICATIONS table. Adjust jet valve clearance with intake valve adjusting screw fully loosened.
- With engine at normal operating temperature, stop engine, remove rocker cover and position appropriate piston at TDC of compression stroke.
NOTE:
Tensile strength of jet valve spring is weak. DO NOT
force screw to turn, putting excess pressure on spring.
JET VALVE CLEARANCES
| Application | In. (mm) |
|---|---|
| Cold | .007 (.17) |
| Hot | .010 (.25) |