1992 Johnson 48 SPL Carburetor Adjustment

[agaurolex]

Anyone have the procedure for single screw adjustment for the dual carb setup. There is no hi lo rpm adjustment for this dual carb setup.

Thanks!

 

[Daviet]

Re: 1992 Johnson 48 SPL Carburetor Adjustment

Not quite sure what you are asking, but each carb has its own mixture control screw for the low speed circut. There is a idle speed screw that controls the setting of the engine RPM for proper idle speed.

 

[agaurolex]

Re: 1992 Johnson 48 SPL Carburetor Adjustment

I didn't word it correctly. What is the procedure for setting the mixture for each carburetor. I saw Joe Reeve's procedure but I am not sure if it applies to this type of carb. I believe this carb is 2 1/2 turns out for the initial setting. But not sure what the next step is for settting the mixture. Thanks!

 

[Daviet]

Re: 1992 Johnson 48 SPL Carburetor Adjustment

I beleave you are correct on the static setting. You have to set one carb at a time, about 1/8 turn at a time, to get the best idle. It can be a job to set duel carbs, takes patience.
It's best to do this in the water with the boat in the water in gear.