sizeddenim
10.05.2021 8:38:30
I've never rebuilt an engine yet, so my guess is it won't hurt anything.
See full version: OK to use carb cleaner on a running 2 stroke
I've never rebuilt an engine yet, so my guess is it won't hurt anything.
Spraying carb cleaner into a carb throat doesn't do anything to clean the carb. It will certainly dilute the lubricating oil. I am therefore not sure why you would want to do this.
Carb cleaners suggest spraying in to the carb throat while the (vehicle) motor is running--but it seems to me that would not be a good idea for a two stroke? Or is it OK since you do one carb at a time?
I understand that Seafoam "doesn't clean carbs" and all that. However, I was having an intermittent hiccup at speed issue last season and I did a decarb out on the lake by spraying aerosol SeaFoam into my motor for a bit until it stalled, let it sit for a bit, then fired it up and sprayed most of the rest of the can in little by little, then did a WOT run around the lake on a gallon or two of fuel with a can of SeaFoam in it. My hiccup problem went away. I know this is anecdotal but I'm basically just sayin' HC, that it couldn't hurt to try. This is assuming you don't have an electrical issue. [links]
An excellent way to clean an outboard carburetor without removing would be by using the Berryman B12 Carb Cleaner.
Your boat’s outboard carburetor is a very vital part. Its work is to regulate the mix of fuel and air to create combustion and enable the boat to run. Thus, to keep the boat, and more specifically the engine running smoothly, you got to clean the outboard carburetor on a regular basis.
The best way to clean the carb is to disassemble it and clean it piece by piece but the task might take all day, and you may not have all that time. In that case, the next best option is to clean the outboard carburetor without disassembling it. Let’s see how you can do that.
Caution: rubber and plastic parts of the carb shouldn’t come into contact with the carb cleaner, as they might get destroyed. Cleaners that contain isopropyl alcohol are a safe option for the carb’s delicate parts. [links]
Running a dose of Yamaha's RingFREE at 2-3x's the recommended amount should help, as long as some fuel can flow. [links]
I don't know why Yamaha would have another slow speed jet (must be a reason), I would simply make sure all are clean.
Having said that I know a racing person who insists jets wear out, through the abrasion of the flow of lots of fuel. Maybe microscopic I say.
+1 ^^^ re flooding. Clogged jets won't make it flood. A leaky needle / seat will.
It would not be flooding (as you suspect) if the jets are gumming up. The needle and seat maybe, the muck preventing complete close off.
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