MTD 61 series, Shop Manual

Page: 108 / 142

61, 65 and 70 Series Vertical Shaft Engines
102
To service/replace the air injector:
1. Remove the two screws that secure the air injector
using an 8mm wrench. See Figure 8.7.
2. Remove the two screws that secure the screen
cover using a #2 Phillips screw driver. See Figure
8.8.
NOTE: If the inlet screen is blocked, it may be:
• Replaced
• Cleaned by mechanical means
• Solvent cleaned
• Burned clean using a butane or propane torch.
3. Install the inlet screen cover and tighten the screws
to a torque of 44 in lbs (5 Nm).
4. Clean the gasket material from the air injector and
the muffler. See Figure 8.9.
NOTE: The air injector has a graphite gasket. It is
not reusable. a new gasket must be used
every time.
5. Install the air injector and tighten the screws to a
torque of 62 in lbs (7 Nm).
6. Test run the engine before returning to service.
Figure 8.7
Remove these
screws
Figure 8.8
Screen cover
Figure 8.9
Clean the gasket material
from these surfaces
Graphite gasket