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Join Date: Jun 2007
Posts: 1,762
KS
09-28-16, 04:29 PM
#1
Plastic float leaks, Tech Talk
First for me...in my nearly 20 years and countless thousands of carburetors with plastic floats to see one full of fuel 
A Ruixing carb on a Briggs 16.5HP Intek. It is on a brand new DR Brush Cutter and will be covered under warranty.
No doubt this has got to be from a manufacturing flaw and not age, fuel, contaminants etc. Still I was pretty amazed when I noticed it.
This engine uses two carbs, the other is a Nikki. I dug through boxes of old carbs we have and found 20 or so of the Nikki, but not one Ruixing, and of course the floats are not interchangeable.
A Ruixing carb on a Briggs 16.5HP Intek. It is on a brand new DR Brush Cutter and will be covered under warranty.
No doubt this has got to be from a manufacturing flaw and not age, fuel, contaminants etc. Still I was pretty amazed when I noticed it.
This engine uses two carbs, the other is a Nikki. I dug through boxes of old carbs we have and found 20 or so of the Nikki, but not one Ruixing, and of course the floats are not interchangeable.
Just needs a bigger hammer
Peace
Last edited by BFHFixit; 09-28-16 at 05:26 PM.
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Forum Topic Moderator
Join Date: Jul 2001
Posts: 16,570
GA
09-28-16, 05:13 PM
#2
I've seen it only on Chinese carburetors that I can recall. The MTD powermore engines mostly. Ruixing carbs come from there AFAIK.
This junk is getting cheaper and cheaper by the day. I've been seeing chinese starters breaking a lot recently too... the entire case, the machined gears, etc...
This junk is getting cheaper and cheaper by the day. I've been seeing chinese starters breaking a lot recently too... the entire case, the machined gears, etc...
"Who is John Galt?" - Ayn Rand (Atlas Shrugged)
God bless!
Forum Topic Moderator
Join Date: Jun 2007
Posts: 1,762
KS
09-28-16, 05:22 PM
#3
Yep I have seen alot of the Powermore engines also with the full on plastic carb, and not only on MTD. To remove the jet/emulsion tube on one of these requires a new one be installed 
I am not liking the Nikki versions though either, the brass jets are held into the plastic only by orings that will barely fit over a toothpick. Once the o-rings go, the fuel is no longer metered and the engine will flood out.
One good thing about the Ruixing is it seems to be a knock off of the Walbro/Briggs which is still much better than the Nikki Idea IMO.
I am not liking the Nikki versions though either, the brass jets are held into the plastic only by orings that will barely fit over a toothpick. Once the o-rings go, the fuel is no longer metered and the engine will flood out.
One good thing about the Ruixing is it seems to be a knock off of the Walbro/Briggs which is still much better than the Nikki Idea IMO.
Just needs a bigger hammer
Peace
