Johnson carb initial settings

[zuvyte]

Most references I’ve seen suggest 1 ½ turns out from fully seated as a starting point for low speed mixture setting. I have a 130 HP 2000 Johnson Oceanrunner that is running lean “lean sneeze” then dies. I carefully counted how far out the mixture screws were set on each of the 4 plastic carbs. They were set anywhere between 4 ¼ to 4 ½ turns out from fully seated. I’m now set to around 5 to 5 ½ turns out & it seems like she doesn’t sneeze as much. Throttle response seems pretty good. Any suggestions on how these carbs should be initially set and adjusted? Thanks!

 

[rwise]

Re: Johnson carb initial settings…

welcome to Iboats
how long has it been since the carbs were removed cleaned out and rebuilt. It may be time sounds like they are a bit plugged up. most carbs set at 1.5 turns and don't take much to tune then in. also has it been rejetted maybe for another elevation?

 

[zuvyte]

Re: Johnson carb initial settings…

welcome to Iboats
how long has it been since the carbs were removed cleaned out and rebuilt. It may be time sounds like they are a bit plugged up. most carbs set at 1.5 turns and don't take much to tune then in. also has it been rejetted maybe for another elevation?

 

[dingbat]

Re: Johnson carb initial settings…

I'm sure sure about the 130 but the 200 and 225 are 5 turns out according to the OEM manual

 

[zuvyte]

Re: Johnson carb initial settings…

Thanks still getting adjusted to posting on the forum. Carbs were cleaned about a year and a half ago & drained at that time. Bought the engine new in 1999 so jets should all be stock. Engine won't even come close to running at 1 1/2 turns.

Seahunter, I do believe they use the same carbs on the 200's. So maybe 5 + turns isn't totally out of whack...