Inspect Float Setting; Install Main Nozzle And Jet; Installing Carburetor Nozzle And Main Jet, High Altitude Compensation; Installing Bowl - Columbia ParCar P4G Service Manual

Post
Hinge Pin
Posts
Figure 32 - Installing Float Hinge Pin

Inspect Float Setting

1. With carburetor body upside down, the float should be
parallel with carburetor bowl mounting surface. See
Figure 33.
2. If not, replace fuel inlet valve, float, and hinge pin.
Equal
Float
Bowl
Mounting
Surface
Figure 33 - Inspecting Float

Install Main Nozzle and Jet

3. Install nozzle and then main jet, See Figure 34.
Float
Hinge Pin
(Flat End)
Figure 34 - Installing Carburetor Nozzle and Main Jet,
High Altitude Compensation
Table 3 list identification numbers that are stamped on
both standard and high altitude jets for these carburetors.
9 H.P. Engine/Mikuni Carburetor
Install Float Bowl
Figure 35 - Installing Bowl
Position bowl drain on carburetor as shown, Figure 35.
Tighten screw securely.
7-18
Second
Install
Main Jet
Table 3 - Identifying Main and Pilot Jets -
9 H.P.
Engine
Main Jet
0 - 4500 ft.
87.5
4500 -
85.0
8000 ft.
8000 -
85.0
10000
Bowl
Drain
First
Install
Carburetor
Nozzle
Pilot Jet
40
40
35
Bowl
Washer
Screw