(Continued from page 152)

If you have a 5.0 L engine below the serial number listed, and it has this problem, change the venturi cluster. Engines above the serial number listed used a carburetor that had the new venturi cluster. The idle circuit in this new cluster is leaner than the previous cluster.

NOTE: This new cluster may give a lean pop on rapid acceleration
       with no load on the prop. Retest the boat in the water
        with the correct pitch propeller before trying to correct
        a problem that really is not there.

3302-808706 Venturi Cluster.

  Venturi Cluster Identification
The venturi clusters are matched to the carburetor. Sometimes the replacement clusters get packaged wrong. Clusters have an identifying number on them. Refer to the service manual for the engine that you are working on for the correct cluster number.

Adjustable Accelerator Pump

The replacement accelerator pump lever has three holes in it. This lever will allow you to change the amount of fuel delivered to the engine by the accelerator pump. Most bogging problems can be corrected by changing the rod's location, providing the bogging problem is being caused by the carburetor. Always test run the boat in the water to see if bog has been corrected.

When installing this lever on an older carburetor. put the rod in the center hole. This will give 0.5 cc less fuel to the engine on acceleration, than the single hole lever did. Remove any metal ball that someone may have put in the accelerator pump well to limit pump travel. Also, make sure that the duration spring on the accelerator pump is stock and has not had several coils cut off. Verify that the venturi cluster is the correct one as called for in service manual. Production started using carburetors with the 3 hole lever in June 1992.

3302-823725 Lever (With 3 Holes)

Suggested Changes for Running at Altitude
The following is meant to be a guide when the engine is going to be used at altitudes other than sea level.

1. Boats going to a higher elevation for a short period of time should only change their propeller to a lower  pitch.

2. Customers that will be doing all their boating at higher altitudes can have the following changes made.  If this boat is brought back down to sea level, all elevation changes that were made must be returned  to settings for sea level.

   CAUTION: To prevent engine damage, DO NOT SET timing any
           higher than for the lowest elevation that customer
           will be running the boat.

3. Generally, timing can be advanced 2 degrees for every 5000 ft. (1,525 m) elevation to help engine performance.
4. Carburetors can be leaned out to help performance at higher elevations. Before ordering any parts, look at the part number on the carburetor. It is stamped in the float bowl.

Part numbers that have 6 digits will only have the last 5 digits stamped in the float bowl. 815397A 4 will be 15397A 4. Also. look at the main jet to see what size it is. A '165' stamped on it would mean that it is a 1.65 mm jet.

For gear ratio changes, see Service Bulletin 97-10.
--------------------------------------
Jet
Size        Part Number

1.30       3302-811849
1.35       3302-811850
1.40       3302-811851
1.45       3302-9050
1.50       3302-811852
1.55       3302-811853
1.60       3302-810923
---------------------------------------
Jet
Size        Part Number
1.65       3302-9058
1.70       3302-9055
1.75       3302-811854
1.80       3302-811855
1.85       3302-811856
1.90       3302-811857
------------------------------------
Power
Valve       Part Number
0.74         3302-9435
0.90         3302-9059
------------------------------------
                   5000 ft.                              19000 ft.                                          .                          Carburetor Part           (1525 m)     5000-9000 ft.   (2745 m)
Models                   Number             and Below   (1525-2745 m)  and Above

2.5L/3.0 L/LE       1389-9562A_       1.45 mm #       1.40 mm        1.35 mm
S/N 0C856400      3310-806077A_
and Below           3310-860070A_
-----------------------------------------------------------------------------------------------
3.O L/LE           1389-815396A_         1.60 mm #       1.50 mm         1.45 mm
S/N 0C856451-      3310-806078A_
     0F353099
----------------------------------------------------------------------------------------------
3.0 L/LE             3310-807504A           1.55 mm #    11.55 mm #    11.45 mm
S/N OL000001
and Above
--------------------------------------------------------------------------------------------
3.0 LX               1389-815397A_          1.65 mm #       1.55 mm     1.50 mm
                           3310-805924A            1.60 mm #       1.50 mm     1.45 mm
                           3310-807504A            1.55 mm #       1.55 mm #  1.45 mm
---------------------------------------------------------------------------------------------
4.3L, 4.3 LX       1389-9565A4_            1.65 mm #        1.55 mm     1.50 mm
                           1389-9565A_             1.60 mm #        1.50 mm     1.45 mm
                           3310-806080A_
                           3310-806972A_
                       ^  3310-807764A_
---------------------------------------------------------------------------------------------
5.0 L               1389-9563A_               1.70 mm #         1.60 mm     1.55 mm
                      3310-806081A_
                      3310-861080A_
                      389-96704 _                   1.85 mm #          1.75 mm      1.65 mm
                       3310-806082A_
                  ^   3310-861448A_            1.65 mm #          1.50 mm       1.45 mm
------------------------------------------------------------------------------------------
5.7L(1)           3310-807312A_          1.65 mm #           1.50 mm        1.45 mm
                   ^  3310-861245A_          0.90 mm @         0.90 mm @    0.74 mm

^ (1)= Refer to the sizes given for the main jet and the power valve on these carbs.
# = Stock main jet.
@ = Stock power  valve jet.