Carb spitting out fuel
#1
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Carb spitting out fuel
I've had a heck of a time getting my 3W50cc to run....well some 'magic' and it now runs, but spits out a lot of fuel thru the carb when running at full throttle....any recommendations on what I have to do to keep the fuel going in the right direction? Thanks,
jf
jf
#5
RE: Carb spitting out fuel
The reed valve blockshould be located under the carb in where that black spacer is located between the engine and the carburetor. Of course it could have a rear rotary valve, but I see no reference to it anywhere so I assume it is a reed valve. I do remember seeing pics of it having a intake stack on the engines before too. The intake stack would reduce the carb spitting a lot by helping to keep the fuel inside more.
#12
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RE: Carb spitting out fuel
the reed should lay flat on the reed block.you could try to flip it over,look for anything on the reed and block that could keep it from laying flat.that is the reason it is hard starting and spitting fuel.
#15
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RE: Carb spitting out fuel
ORIGINAL: huck1199
Is the condition such that a reed that is not seated will allow fuel to reguritate?
Is the condition such that a reed that is not seated will allow fuel to reguritate?
jf
#18
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RE: Carb spitting out fuel
I flipped the reed over and it fit perfectly in the carrier, but when mounted, I got that 1/16" gap between the carrier and the reed
This is getting frustrating to say the least....I hate to, but might have to send the engine back to 3W grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
Thanks to all of you for your input and if anyone has another suggestion, feel free to contribute as the engine isn't boxed up just yet
jf
This is getting frustrating to say the least....I hate to, but might have to send the engine back to 3W grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
Thanks to all of you for your input and if anyone has another suggestion, feel free to contribute as the engine isn't boxed up just yet
jf
#19
RE: Carb spitting out fuel
Ok the white color thingies are the reeds. The black carrier is used to prevent the reeds from moving up too high. The reeds should lay flat against the reed block that they screw onto. So you need to look closely at the block to see if the reeds are laying flat against it or not.
#22
RE: Carb spitting out fuel
Did you already try an intake funnel?
This usually reduces / eliminates fuel spray comming out of the carb.
For example this one: [link]http://www.3w-modellmotoren.com/katalog/zubehoer-motoren-allgemein-39/ansaugtrichter-mittel.html[/link]
This usually reduces / eliminates fuel spray comming out of the carb.
For example this one: [link]http://www.3w-modellmotoren.com/katalog/zubehoer-motoren-allgemein-39/ansaugtrichter-mittel.html[/link]
#23
RE: Carb spitting out fuel
This might help, they had a article about making the reed valve's reeds lay flat here in this thread for as DLE 20 engine. But the same techniques would apply to your engine too.
It might give you some ideas.
http://www.rcuniverse.com/forum/m_11...m.htm#11396471
It might give you some ideas.
http://www.rcuniverse.com/forum/m_11...m.htm#11396471
#24
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RE: Carb spitting out fuel
years ago we would have problems with the reeds in our old johnson outboard motors reeds and just removed them and very carefully bent them until they layed flat on the block. the motors ran fine ,,,later the reed broke and it had to be replaced but it worked for a whole summer.
#25
Senior Member
RE: Carb spitting out fuel
You don't need to send the engine back, just buy the reed cage and reeds and fit them yourself.
If you don't have the velocity stack order that at the came time.
If you don't have the velocity stack order that at the came time.