See full version: 87 Mercury Classic 50 SETTING CARBS
American outboard idle is set via timing. The throttle butterflies have holes in them to set a fixed idle air flow. One of the many strange quirks about outboard motors that you will see nowhere else. Make sure both carbs are fully closing at idle. Classic Fifty had Hp measured at the propshaft, the older cousins were measured at the crankshaft. A bit of Hp is lost in the gearcase. That's where the difference comes in. more
I thouroughly cleaned the carbs and she idles high.
Seems that way to me.
1987 classic 50 4 cylinder dual carb
In Mercury book as 45hp cylinder because of serial number 0B160042.
I want to try and get this thing right and I am really in an area of no knowledge.
Re: Fuel additive carb cleaner for outboards more
See your dealer . there's all kinds of stuff out there.
Re: Fuel additive carb cleaner for outboards
Re: Fuel additive carb cleaner for outboards
When cleaning with the engine running spray on both ends of choke valve shaft while working the choke with hand. Spray around the throat of the carburetor to eliminate the deposits from throttle plate area. Make sure that you don’t spray below the throttle plate. There are some components that must be avoided while cleaning with the spray. These components include the D-ring, diaphragm on the accelerator pump as well as air cut-off valve. Spraying on these components can potentially cause damage to them. [links]
When cleaning with the engine off, you must remove the air cleaner and clean carburetor from the outside as well as the entire linkage. Another area to spray is the exposed ends of the cool heat riser shaft. Allow it to penetrate well before cleaning. Also, you should be moving counterweight up-down until it is completely free. [links]
There are various resources and chemicals that are used in the manufacture of Carb cleaner products. Before you start spraying that spray for your engine it is important to understand the contents of the carb cleaner. Some of the contents or ingredients used in the carburetor cleaner are Acetone, Xylene, Toluene, Methyl Ethyl Ketone (MEK), Ethyl benzene, 2-Butoxyethanol, and propane. more
You have to be very careful when you are spraying the carb cleaner. The contents of the carburetor cleaner are toxic and therefore can be hazardous for your health. Proper care and handling are required for spraying the cleaner. With the passage of time, the carburetors become clogged with varnish, dirt, and gum. The various carb cleaner products available in the market does the job of cleaning the carburetors effectively. However, there are some precautions that you must take. First and foremost you need to keep the carburetor cleaner away from electrical connections and the battery terminals. Spraying should be done in an upright position. You should also insert the plastic tube into the valve button. here
These are some of the instructions that you must give attention to while spraying carb cleaner outboard. [links]
In such scenarios, you need to clean the carburetors and surrounding parts for the engine to start working smoothly again. There are various carburetor cleaner products around the market and you must choose one depending on what you like the best.
Re: Fair Cost for Carb Cleaning? here
Re: Fair Cost for Carb Cleaning?
Re: Fair Cost for Carb Cleaning?
Re: Fair Cost for Carb Cleaning? [links]
I dont blame you, I understand your point.<br />& it's done right, I understand theres a remote possibility that a jet may get clogged doing it the seafoam way, not a good thing.. more