Muffler Removal/Replacement - MTD P90 series Shop Manual

P90 Series Vertical Shaft Engines

Muffler removal/replacement

1. Remove the four screws, indicated by the arrows in
Figure 8.2. that retain the muffler shield using a
10mm wrench and lift it off of the engine.
2. Lift the muffler shield off of the engine.
3. Remove the screw, indicated by the arrow in Figure
8.4. that secures the rear of the muffler to the
engine block using a 10mm wrench.
4. Remove the two nuts that hold the manifold pipe to
the cylinder head using a 13mm wrench.
See Figure 8.4.
5. Slide the muffler and manifold pipe off of the engine.
NOTE: The muffler and the manifold pipe are ser-
viced as one assembly on the 4P90 service
of engines.
80
Figure 8.3
Figure 8.4
Manifold pipe
Figure 8.5