61, 65 and 70 Series Vertical Shaft Engines
54
Primer
Another way to enrichen the fuel air mixture for start-
up is the primer. The primer is a simple pump that pressur-
izes the float chamber, forcing fuel out the main nozzle.
See Figure 4.39.
Carburetors that use a primer are easily identified by
the lack of a choke plate and the addition of a primer port.
See Figure 4.40.
To remove/replace the primer:
1. Remove the air filter housing by following the steps
described in Chapter 3: Air Intake And Filter.
2. Disconnect the primer line from the primer bulb. See
Figure 4.41.
Figure 4.39
Primer
Primer
Carburetor
Air pressure
Figure 4.40
Choke is
removed
Primer port
Figure 4.41
Remove the
primer line
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