Question about Mantis 2-Cycle Tiller

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Appears a problem with the gas flowing properly as I can't start the engine othen then when spraying starter fluid into the carburetor, and then it only starts for few seconds and dies out. Is it possible the filter in the gas tank is restricting flow of gas, as I only get a little bit dribbling out when I disconnect the line from the carburetor.

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You're on the right track. Problem could also be inside carburetor if the unit sat during the winter with fuel in it. Fuel tarnishes when left for long periods of time and these engines use a diaphragm in the carburetor to pull the fuel through very small holes.

Posted on May 18, 2009

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Posted on Jan 02, 2017

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Cub Cadet has gas, has spark, has air -still won't start/run


Are you pulling the plug to check for wetness after cranking it a few times, WITHOUT using the starting fluid? Also, I would recommend using carb cleaner in place of the starting fluid. Starting fluid runs the engine VERY hot for a brief time and can possibly damage rings, valves, and aluminum parts.

Jun 09, 2013 | Garden

1 Answer

Will not start when hot


Hi William
When your engine quits after it gets hot,
You either have a problem with gas flow being restricted into the engine or with the spark.
This is a common occurrence on older-model engines.
By replacing your spark plugs and keeping your gas lines clear you can reduce the chances of this problem recurring.
Possible Vapor Lock:
Vapor lock happens when excessive heat and vapors build up in the gas tank and aren't vented properly.
Check for this problem the next time your engine dies when it's hot.
Unscrew the gas cap, vent the gasses and try to restart your engine.
If it starts you have vapor lock, and will need to carefully inspect the fuel tank's vent hole to see if it is plugged or damaged.
Clean this hole with a brush and rag.

Possible Ignition Problems:
Acommon problem is an old or dirty spark plug. When the plug gets covered in black carbon the spark will have difficulty firing, especially when hot.
You may also have a problem in the ignition module or the coil in the module.
Again, run the engine until it quits and then squirt a little starter fluid into the open choke valve, underneath the air filter.
If it starts up you likely have a fuel system problem, but if it doesn't start, your ignition module or coil is likely almost finished.
Fuel Supply:
At certain times when the engine gets hot, the flow of fuel to the carburetor can get restricted.
This can occur with a dirty fuel filter.
The hose itself, when hot, can also lose its proper seal to the carburetor, restricting the flow.
Replace your fuel filter and hoses on a regular basis, usually once a season.
Try adjusting your carburetor's screws to see if you can richen the fuel mixture in the carburetor.
Other Problems:
A dirty or worn-out carburetor can also cause similar problems when hot.
You should get your carburetor cleaned and serviced.
Try installing a carb kit to older carburetors to help with the flow of fuel.
A fuel pump inside the carburetor can also start failing and any warping in the diaphragms will also cause similar problems.
You can check for a dirty carburetor by squirting a shot of carb cleaner into the open choke hole just after starting the engine.
If you see a lot of thick, dark smoke pouring out the muffler, your carburetor is dirty.
Please take time to rate me
Bud

Apr 20, 2013 | Husqvarna Garden

1 Answer

Honda 8hp motor only starts with quick-start fluid


if you have gas to carb rebuild carb or relace

Jul 07, 2012 | Honda 8 HP Engine

1 Answer

I have a Ryobi 1079r that will not stay running. I found several cracked plastic gas line so I replaced all of them. I used a spray carburator cleaner as well. The unit will start if I spray a starter...


The carburetor may have inhaled some trash, debris or parts of fuel line. Remove the cover on it that does not have the vent-hole in it. Inside on the carb body you will see a very small fine-mesh filter screen. Make sure it is not covered with debris. If so, clean it up and replace cover. This commonly gets dirty and needs to be cleaned after lines deteriorate.

Dec 04, 2010 | Ryobi Garden

1 Answer

ENGINE WILL NOT START


My power-washer suffers from same problem after sitting idle.

After paying for a new carburetor, I discovered how important it is to drain the gas if washer is going to sit idle.

Another time, we had a problem with the screen covering exhaust outlet. Deposits from the engine + dirt clogged the screen. Although it's not the solution for everybody, we broke the screen open with a screwdriver and the machine ran fine after that.

Small gas engines require 3 things. Compression, spark, and fuel. Take out spark plug. Put finger over spark plug hole and pull cord or push starter. Do you feel suction? If yes, then you have compression.

If machine will not turn over at all, then your motor might have run out of oil. Power washer needs oil in 2 places. It needs oil for the engine just like a lawn mower. Oil plugs are located low on each side of engine. It doesn't hurt to change oil, but do NOT NOT turn small engine upside down or oil will get into carburetor which requires removal and cleaning. I learned that the hard way.

The power washer also needs oil for the pump head. This is the box attached to front of engine. Usually 10W20 non-detergent is a good choice. Oil is usually about half way up inside pump head.

Now hook spark-wire back to spark plug. Hold spark plug in hand. Touch threads of spark plug to metal spark plug opening. Now pull cord or push starter. Do you see sparking in the spark plug gap? If yes, then you have spark. Put new spark plug in anyway. If no, then you need parts from small engine repair service.

Spark plug is in. Take off air filter so you have access to carburetor air intake. Put fresh gas in tank. Use starter spray or WD-40 as a starting accelerant. Set your choke to start engine. Spray starter fluid into carburetor opening and pull cord or push starter. The engine should fire up on the starter fluid. If engine doesn't fire, then try setting choke in different positions. If engine doesn't fire up then carburetor is suspect.

If engine fires but dies, keep spraying starter fluid into carburetor to see if you can keep it going that way ... and then move choke in different positions ... you might need extra hands for that maneuver.

If machine turns on, but dies when filter is put back, then filter might be clogged. Time for a new filter anyway.

Finally check the fuel filter and fuel line below the gas tank. It usually has a hex head bolt. Loosen bolt and see if fuel is able to fall out of tank. Loosen rubber fuel line at both ends and see if fuel is flowing. This will tell you if fuel can get to carburetor.

Usually these measures get the thing going or tell you if professional service is needed.

Sep 29, 2010 | Briggs Stratton 020273 Elite Series...

1 Answer

I replaced the carburetor, spark plug, and put in new gasolone on a Toro Recycler (5 yrs. old) and it still won't start. The ignition is only one year old. Seems like I'm not getting any spark and the fuel...


Hi. Replace the air filter. Then use some starter fluid and an assistant. Spray some starter fluid into the air intake as you start it up and keep spraying so that it runs on the starter fluid for a few seconds until it really takes off. J.

If this does not do it then you will have to have the carburetor rebuilt as it has hardened gunk in it.

Aug 01, 2010 | Garden

1 Answer

Eager ****** wont start, sprayed engine starter fluid, but shuts off from lack of fuel?


first of all using starter fluid damages the cylinder head gasket. Take cap off of gas tank look for small clear line with filter on end - Is the filter submurged in fuel , or is it dirty and need replacement? make sure the filter in in the bottom of the tank. After all that, if it still does not work check all mounting fasteners and everything is tight and appears to have no leaks I would say its the carburetor diaphragm, less than 10 bucks and easily replaced.

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2 Answers

My Coleman OHV 3000 will not start


dont use starter fluid ,will ruin engine.Sounds like the float in the carb is stuck.and keep lookin for a filter.

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