Question about scootercatalog Hoca Main Jet CVK Carburetor Motorcycle 114-35

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How to assemble 50cc carburetor

I took apart and don't know where to put little brass piece that is non-screwable, part of needle assembly maybe?

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It sounds like you are describing the needle valve....does it have a float?

Posted on May 14, 2014

Testimonial: "Yes, and this piece is a "free floating" copper piece with hole; smaller at one end than other. Thank you!"

  • Julie Nass
    Julie Nass May 15, 2014

    Yes I have a float.

  • Antone Pires May 15, 2014

    I don't know exactly what kind of carburator you have, is there a parts diagram or manual that you are working off of that I can look at?



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Motor in pressure washer not working. plug and cable okay.

Is it a Briggs engine? Is it a professional engine by Briggs? If so these engines have an auto choke system that is run off the thermostat off the exhaust that controls a tang that opens and closes the choke.

If its not working it may need adjusting. But more than likely you have either bad fuel or a restricted fuel jet. The jet is on the bottom of the carburetor bowl. Use a 1/2 inch socket or an off set wrench to remove the nut, it is brass so don;t go crazy, Also it has a felt bad washer called a sealing washer. If there is old gas in the fuel tank, go ahead and remove the fuel hose attached to the carburetor and drain it too. I have seen gas so old it looks like Vaseline! Wash out the carburetor bowl with a paper towel and check the small holes in the brass bowl nut because that is your jet. Clean it with carburetor cleaner, acetone, or a fine wire make sure it is clean..

reassemble the carburetor bowl and hand tighten the brass jet, again it is brass threading into aluminum so don;t go crazy. Also if you took the fuel line off go and put it back on, Try non ethanol gas and give it a try, Make sure you don;t disturb the carburetor bowl gasket .. Here is a pic to help ya
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Let me know if ya need anything else.

Aug 27, 2014 | Garden

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Little brass piece with the hole in it and the o ring fell out when I took the bowl off my 17.5briggs. I must have put it back in the wrong place when it back together. Does anyone know where it goes?

Is it a Nikki carb? The little brass piece is the main jet and goes in the long tube in the center of the plastic piece that holds the float and float needle. It is inserted from bottom side and seats in the top of the tube.

Jul 24, 2014 | Motorcycles

1 Answer

I took apart the carburetor on a Tecumseh LEV100 motor and the little "spring" that is part of the float assembly fell out. I'm not sure exactly how to put it back in and I feel like this...

Hi v0lten...
Yes the problem with the mower not running is the little spring you talked about is missing from under the float arm of the carburetor. It is necessary for the mower to run right.
The little spring inside of the carburetor goes under the float arm.
That is where your fuel inlet needle/float valve is located...on the arm at the end.
Normally there is a small indetion in the carburetor base and a small protrusion on the underneath of the float arm where the spring will be in the right postion for installation.
The spring will set in the indention and you will install the float arm with the needle/float valve and float rod into position over top of the spring,you will push down until it is in position and then you can tighten the screw that holds the float arm assembly in position.
Your carburetor should be working properly to run now as long as you do not have other problems in the fuel system or electrical problems.
Free answer...Please rate me

Jun 26, 2011 | Toro Garden

2 Answers

Bike starts and runs ok but wont rev out .Thanks in advance

check the air filter is not obstructed or dirty. if thats ok then it is more than likely the carbs that need attention/resetting/cleaning out

Mar 15, 2011 | 1989 Yamaha Xv 250 Virago S

1 Answer


not sure but sounds like you are talking about the clip that holds the needle in place.
you need to know which slot the clip was in and put it back on the same one.
get online and type in the make of the carb.
lots of info out there and good parts breakdown pictures that can help.
good luck

Apr 22, 2010 | 2005 Honda CRF 100 F

1 Answer

Chinese import 50cc pit bike carburetor problem

sounds like your needle valve is sticking need to take carb apat and clean the needle and seat

Mar 18, 2010 | TVS Star Motorcycles

1 Answer

Getting fuel to the carb but not in the carb what should i do to fix this?

if fuel is not getting into the venturi of the carberettor, the top needs to be removed and look at the needle and seat assembly to determine whether or not the valve itself is sticking or there is something caught in the way. the needle and seat assembly will be a little brass piece right near the fuel inlet and will have a little rocket looking device which closes and opens the inlet as neccessary. happy holidays

Dec 28, 2009 | 1982 Ford F 250

1 Answer

Whirlpool Clutch Problem

H i sounds as if your incorrectly assembling the clutch ....there is a diagram with the new its part of the assembly

regards Sir Galahad

Aug 20, 2009 | Whirlpool Ultimate Care II LSQ9564J Top...

1 Answer

Need the carburetor assembly manual

It is either a Walbro or a Zama carb. I think both mfrgs have a website w/ parts breakdowns. But both carbs are the same as to the placement of diaphragms + gaskets. On the side with the inlet needle the gasket goes on first and then the metering diaphragm. On the fuel pump side the diaphragm goes against the carb body and then the gasket before the cover.

Aug 10, 2009 | Troy Garden

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