What is the PURPOSE of Outboard Cylinder Drain Reed Plate (see pic)

[frankygandolfo]

Outboard Cylinder Drain Reed Plate 1989 Force 85 hp
what is the purpose of this and how would it affect engine performance

 

[topgun3690]

It's a cover for the recirculation system, referred to as the "dog bone". The recirc system takes unburned/excess fuel from each cylinder and routes it up to the intake where it is run through again. Can cause issues if it becomes plugged up....poor idle, sluggishness, etc.

 

[frankygandolfo]

Ahhhhhh yes thank you I am having those issue even after carbs were rebuilt too. so this dog bone thing is the next step !!!

 

[topgun3690]

Mine has little metal screens behind each of the reeds.....make sure they are clean......and the hose running to the intake, check to see if it plugged up. Not much to it really.....

 

[frankygandolfo]

copy that, thanks brotha !

 

[topgun3690]

No problem.....if you still have issues after this there are some hard hitters on here that can help you out for sure.

 

[jerryjerry05]

First you should tell us what the problem is your having?
Never really run across a problem with the dog bone.
They can get clogged with carbon pieces.
But since the advent of TCW-3 oils the carbon problems is not much of a problem.

 

[The Force power]

copy that, thanks brotha !

Inspected the check-valves also, (if equipped with) fittings are the check-valves

 

[frankygandolfo]

Inspected the check-valves also, (if equipped with) fittings are the check-valves

check valves are located where on the engine, do you have a pic of the location. sry very very new to outboard engines but am pretty decent with car mechanics.

 

[frankygandolfo]

First you should tell us what the problem is your having?
Never really run across a problem with the dog bone.
They can get clogged with carbon pieces.
But since the advent of TCW-3 oils the carbon problems is not much of a problem.

poor idle sluggishness, cleaned out the small screens and seems to be running steady.

 

[frankygandolfo]

No problem.....if you still have issues after this there are some hard hitters on here that can help you out for sure.

thanks buddy, appreciate the help, it seems to be running steady now

 

[topgun3690]

check valves are located where on the engine, do you have a pic of the location. sry very very new to outboard engines but am pretty decent with car mechanics.

The check valve is built into the fitting the hose pushes onto on the dog bone.....might spray some carb cleaner in there to clean it.....take the boat out and see how it does on the water, under load. Sometimes it runs great in the driveway, and different on the water.