Do I have to recalibrate my carbs?

[papajorgio01]

I have a 1999 Johnson 50 hp, and this model has dual carbs. I recently converted my fuel pump from the VRO to a regular block pump. When I ran my boat the other day it sounded as if the carbs weren't getting enough gas or maybe to much gas. Do I have to recalibrate my carbs after doing this conversion? If so how many turns should it take?

 

[Daviet]

Re: Do I have to recalibrate my carbs?

You should not need to readjust your carbs. The only adjustment you have is low speed.

 

[papajorgio01]

Re: Do I have to recalibrate my carbs?

ok because I read on another forum that on the pre VRO engines the dial needed to be turned 1 1/2 and with the VRO it needed to be turned 3 1/2 times, any idea on what could be causing my engine not to perform the way it should?

 

[Daviet]

Re: Do I have to recalibrate my carbs?

Exactly what is your engine doing? Getting to much gas, maybe not enough gas does not explain your problem very well.

 

[papajorgio01]

Re: Do I have to recalibrate my carbs?

The engine runs fine in idle, and low rpm's. When I am at full throtle, it begins to bog out.