Vapor Lock or Choke Sticking??? 4.3 Merc

[klaus96]

89 Baja 190 Islander 4.3LX Alpha one....I have been trying to solve my "vapor lock" problem for a little bit and noticed something last weekend. I had been parked after running for a while so I had propped open the motor housing cover 6 inches or so while sitting. I went to leave and sure enough, crank crank crank...no start. Got nervous I would flood and be stranded so I removed the flame arrestor to look at carb. The choke butterfly was completely closed. I opened it and the motor started right up. Any thoughts?

 

[Fun Times]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

Inspect your Choke Rod Linkage.

http://www.boatfix.com/merc/Bullet/89/89_27.pdf

 

[mkast]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

Do you know the operation of an engine utilizing a choke?

 

[dubs283]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

The choke butterfly was completely closed. I opened it and the motor started right up. Any thoughts?

yep

figure out why the choke isn't opening

is it electric or mechanical??

 

[Bondo]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

89 Baja 190 Islander 4.3LX Alpha one....I have been trying to solve my "vapor lock" problem for a little bit and noticed something last weekend. I had been parked after running for a while so I had propped open the motor housing cover 6 inches or so while sitting. I went to leave and sure enough, crank crank crank...no start. Got nervous I would flood and be stranded so I removed the flame arrestor to look at carb. The choke butterfly was completely closed. I opened it and the motor started right up. Any thoughts?

Ayuh,... Which carb is on it,..??

 

[klaus96]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

Still in shop. Shift bellows tore last week. I'll post back when I get it home and get the specs. I'll look at linkages also.

 

[90stingray]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

I just wired mine open to avoid any issues. I never need the choke since its always 70 degrees plus when I go boating. Goodluck!

 

[klaus96]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

Someone else told me to do that. Maybe I'll give it a shot. I only go when its warm too.

 

[mtbr00x]

Re: Vapor Lock or Choke Sticking??? 4.3 Merc

I have the same problem, Mine starts up great every time I go out but if I stop and go for a swim or go to the gas dock I have a helluva time getting it started again. This only happens when the engine is warm. I have a electric choke. Someone told me my fuel is leaking down. What I have is a ford 460 with 2 holley 600's. Do ya'll think the bowls are leaking fuel or could this be a choke issue. Only one of the carbs has a choke and it does need the choke to start cold.