Power more 173 cc will not start unless I poor a little gas in carb, runs for a few seconds. cleaned carb full of fuel, bowl fills up. manuel choke works, no gas shut off valve, two butterfly valves.

Drain carburetor bowl and try again. The engine will not run if the bowl is full of water. If it works try and figure out where the water came from (check fuel containers).

Check the anti-afterfire solenoid is functioning. This is the solenoid at the bottom (or side) of the fuel bowl.

It is safe to use starting fluid sparingly. A simple short <1 second burst into the carburetor throat is all that is needed. Where people get into trouble is they spray a few seconds and saturate intake with fluid and it pools inside a cylinder.

Pull gas line from carb, fuel or not. Come back if have fuel

fuel ran out of float bowl no gas coming into float bowl needs and seat installed in carb tap carb with screw driver to try to get bowl to fill and start it with a little with a squirt of starting fluid in carb if runs rebuild carb it will run

hello sir, mower will not start or run,runs only when primming, does it have good spark,good compression,or only runs on full choke, are you getting fuel to the engine if not try this,your fuel pump or your carb. is clogged up here is what you can do for a simple repair for the carb,you can remove the air filter and assy, empty fuel tank and clean out tank and line,remove the bowl nut and bowl careful of the gaskets,now spray carb cleaner in the small port holes in the carb steam in the middle of the carb until clean,now spray the bowl nut holes until clean there are three,after cleaning put bowl on the same way you removed it with dip towards front of float,put bow, and fresh gas,you should be good to go,hope this helps.,thank you.~~

is the needle opeoning on the float in the carb? The fuel bowl should be about half full all the time. As fuel pressure flows into the needle & seat, it fills the fuel bowl until the float pushes the needle into the eat. Sometimes the rubber tipped needle can stick in the seat.

Holley carb? Autolite carb? Holley 4160?

There are 2 different enigines on these depending upong your actual unit model number.
One had a Subaru 175 cc engine and the other was a Honda engine. For carb specifics I need the ENGINE model number. Either way... here is what you need to do:
1. Fuel selector off.
2. Remove main fuel line from the carb.
3. Use a spray can lid and check FLOW. It should fill the lid in under 8 seconds. (Feul selector OFF now) If you do not have good fuel flow here you need to inspect the tank exit port, in line fuel filter if used and the sediment bulb under the fuel selector for debris
(GOOD FUEL FLOW NOW)
4. Remove the float bowl by unscrewing the bowl nut from the bottom of the carb. NOTE positon of gaskets as you remove float bowl. Use carb cleaner and direct a spray hopefully with mini extension tube of the carb nozzle into the center of the threaded area of the bowl nut. (This cleans main fuel jet orifice / pin hole) Then spray carb cleaner using mini nozzle extension up the flat side of the float needle until carb cleaner exits the main fuel line connection. Last spray from the main fuel line connection to the float needle (reversed spray)

This usually removes any debris from the float bowl. main fuel jet and main fuel manifold Reinstall the main fuel line.
- Turn on the fuel selector and use the spray paint can lid under the float to catch fuel. It should fill in 8 to 10 seconds to the point your worried about over-flow.
- GENTLY lift the float needle to the level position. FUEL MUST STOP.
- Lower Float to resting position. FUEL MUST FLOW so that it would fill the spray paint can lid in 8 to 10 seconds. (FUEL SLECTOR OFF)

Clean the bowl nut and reinstall the float bowl. Turn on the fuel.. wait 30 seconds for the float bowl to fill completely and start unit. If it runs GREAT... If it only runs with the choke on you still have a fuel supply problem...i.e most likely the main fuel just in the threaded area of the bowl nut is still clogged. .

This should get you going. Thanks for choosing FixYa,
Kelly

HI,
Turn off the gas and take the bowl off the carburetor.Look for water bubbles in the gas that spills away. Water will float like little balls on gas. If so drain gas tank put in new gas with some HEET added. While you have the bowl off spray up and around the bottom of the now exposed carburetor.
Pay attention to spray up the small copper tube in the center of the carb.
Clean out bowl and put it back on. Turn on your gas. Look for leaks around the replaced bowl. Good luck.

ALWAYS have a fire extinguisher on hand when working on carburetors.
Open the petcock, (gas valve), and drain 1/2 cup of gas from the tank. Did the fuel flow freely? Is there any water or trash in the cup?

Drain the carburetor. There should be a screw on the lower right side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Check the float height. The fuel level in the bowl may be low. Bend the tang (in the center of the float) downward to raise the fuel level. EASY, a little bend goes along way. Put the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine.

Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

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