43 mercruiser io

[horsin_arowand]

"motor runs good until it gets

"motor runs good until it gets warm, then it bogs down and can only get about 3000 rpms."

 

[hystat]

year? carb? injected?

year? carb? injected?

 

[wrench]

"choke staying on and restrict

"choke staying on and restricting air flow?, fuel filter clogged?"

 

[horsin_arowand]

"It is a 1986 4.3 2 brl carb.

"It is a 1986 4.3 2 brl carb. The boat runs pretty good with motor cover off, with cover on it bogs down after warming up. Changed fuel filters, did not seem to help."

 

[guyjg]

Clean flame arrestor?

Clean flame arrestor?

 

[rod_stewart]

Is it starving for air?
Have

Is it starving for air?
Have you got adequated fresh air supply to your engine compartment?

Rod

 

[horsin_arowand]

"Flame arrester is clean and t

"Flame arrester is clean and there is plenty of air, two vents in back of boat and on the sides."

 

[rod_stewart]

"Once bogged down; if you open

"Once bogged down; if you open the cover does it straighten out?
Sounds like something breaking down due to heat.
Coil maybe?
Is the choke opening fully?
If not, your choke heater may be burned out.

Rod"

 

[kghost]

Engine cover insulation gettin

Engine cover insulation getting sucked around the flame arrestor?????

 

[horsin_arowand]

"I'm waiting for parts, as

"I'm waiting for parts, as soon as I try these things I will let you know the outcome. Thanks to everyone for your help."