1990 Force hot start problem

thedirtydog

Recruit
Joined
Aug 8, 2016
Messages
1
Engine starts good and runs good for an hour or so. Seems each start gets a little harder until eventually it just wont start. I just checked the fuel pump diaphragm which looks perfect. Boat place told me to use some stabilizer. Next run It didn't happen but the day was a lot cooler and then yesterday being hot and humid it happened again. Motor was rebuilt two years ago and is really clean with new plugs as well.


​Just wont idle when its hot?

One question is how many turns out should the mixture screw be on the carb?

Thanks!!
 

Nordin

Commander
Joined
Jun 12, 2010
Messages
2,639
What Hp Force are we talking about?

The carb/carbs air/fuel mixture screw should be set 1-1 1/2 turn out from lightly seated.
Start with 1 1/4 and fine tune from there.
This should be done with warm engine and in water and in gear.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,125
Welcome !
Sounds like it might be getting hot? ​Test the overheat system,
ground out the sending unit and the buzzer should sound off?
Any work done on the fuel system?
Float adjustment?
Last time impeller was changed?
Shouldn't need stabilizer unless your gonna let the boat set.
 
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