ineedacottage
Seaman
- Joined
- Jul 12, 2006
- Messages
- 69
I was reading the Decarb FAQ and I was wondering what the purpose of a separate gas tank was? Could I not just add the seafoam to my existing gas tank?
The reason I wanted to do a decarb is the idle is a little rough on my 1990 90hp Johnson. She has a tendancy to stall...if the motor is trimmed up when I start it, it will hold the idle better and if I trim it down while idling (in or out of gear) it will often sputter and stall. I have no problem starting it again especially if I raise the fast idle lever a bit and run it at fast idle for 3 - 5 seconds. She will not usually stall then after that. I was hoping a decarb might take care of this...
My other question is (now that I have a working tach) do I need to adjust something to get to the correct WOT range? It currently tops out at ~4900 - 5000 rpm trimmed all the way down; when I trim it up I can get ~5300 - 5400 rpm with just me and gear(wake board, skis, knee boards, life jackets) and full tank of gas. The boat is a 16' Stuery X150. I read that I should be getting closer to 5800 rpm. What would I need to adjust to achieve that?
I forgot to add that most of my boating is tubing, skiing, wake boarding etc in the 3000 - 4000 rpm range...
Thanks a lot for your help!
The reason I wanted to do a decarb is the idle is a little rough on my 1990 90hp Johnson. She has a tendancy to stall...if the motor is trimmed up when I start it, it will hold the idle better and if I trim it down while idling (in or out of gear) it will often sputter and stall. I have no problem starting it again especially if I raise the fast idle lever a bit and run it at fast idle for 3 - 5 seconds. She will not usually stall then after that. I was hoping a decarb might take care of this...
My other question is (now that I have a working tach) do I need to adjust something to get to the correct WOT range? It currently tops out at ~4900 - 5000 rpm trimmed all the way down; when I trim it up I can get ~5300 - 5400 rpm with just me and gear(wake board, skis, knee boards, life jackets) and full tank of gas. The boat is a 16' Stuery X150. I read that I should be getting closer to 5800 rpm. What would I need to adjust to achieve that?
I forgot to add that most of my boating is tubing, skiing, wake boarding etc in the 3000 - 4000 rpm range...
Thanks a lot for your help!