Engines GX120 Series General Purpose Straight Shaft Engine…
Starts good runs good soon as move choke to open engine stops.Have cleaned carb ,main jets clear.
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Why would the engine only run while the choke is on or with repeated manual priming? An engine that requires the choking (partial or full) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment.
The GX120 engine is suitable for a wide range of heavy duty applications such as in construction equipment, tillers, generators, welders, pumps and other industrial applications.
If your bike is only running with the choke on, it`s probably because it`s running too lean. This can be caused by a few different things: All internal combustion engines need three things to run: fuel, air, and spark. If any of these are missing or not working properly, the engine won`t run.
It will not damage the engine at all. All that will happen is that it will run richer, thus using more fuel. If you did it for thousands of miles you`d probably end up with more deposits in the engine/exhaust, but even that is easy to sort.
The Honda GS engines exemplify Honda`s fundamental design philosophies of durability, quality, reliability, ease of starting and high fuel economy. The GX Series offers reliable, easy starting and fuel efficient power for a variety of commercial applications.
Crankshaft Diameter: 5/8″ Threaded. Crankshaft Length: 2-7/16″
The fuel-efficient 118 cc (GX120) Honda engine combined with the high-output direct drive pump produces 4.6 CFM @ 90 PSI.
A snowblower that runs better on half choke likely suffers from a dirty or faulty carburetor. Cleaning or replacing the carburetor will fix the issue.
A choke valve/cable is designed to restrict the flow of air in the carburettor of an engine. This helps enrich the fuel-air mixture, improving the ability to start an engine in low temperature conditions.
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Will only start and run in choked position, when throttle applied chokes out. If started with out choke and throttle position in low speed will start and run for 10 sec then like it runs out of gas.
I have your solution guaranteed, I fixed mine yesturday remove H L screw plastic caps and on high 11 threads exposed and on the low side 8 threads exposed. removing the plastic caps allows u further adjusting these wear out or move soo just take them things off and you will be rolling
Blower only runs with full choke. When I switch to half choke, it dies and won’t start.
It may simply need the high speed jet opening up a bit (2 screws near eachother on the carb and the high speed is furthest from the engine)failing that it needs a carb kit…. this is a serviceable item changed regularly.
Seems to start easily run for a few minutes and then slow and stop–bulb remains full –gas is good–have tried half choke in case too lean–did not solve–also seems possibly related to the angle I hold it at–seems to cut out quicker if blower tube angled more downward.
Your filter may be hanging up in the tank. you also my be losing compression
Have to run on half choke,just stops if i turn it off.fuel is 25 to 1. thanks alan.
More than likely a small passage way in the carb is clogged. You can try some carb cleaner, but you may need to disassemble the carb and clean it out. Be advised that these passageways are sometimes as fine as a human hair, and almost impossible to clear sometimes. A new carb may be required if it is worth it to you. Sorry.
My mantis will not stay running unless the choke is full on
Sounds like the fuel pump diaphram in the carb. you need to either be familar with it or take it to thae shop to replace
Starts right up on choke. then run inrun position for a minute and have to go back to choke to keep it running ,then it runs fine for a couple of minutes and have to go back to choke and start all over again.
This happens with the cover off, so not the filter.
I have a home lite chainsaw and it will run for a few secongds with full choke but it acts like its not getting fuel after you turn the choke of
Here is a link to a couple of my Tips. They should solve your problem if you follow the steps.www.fixya.com/support/r6081405-cleaning_small_engie_carburetorGood Luck!Jim
Can get it to start, but runs about three seconds and stops. the choke is pushed in. But seems to want to run longer with the choke out. 4 seconds…
Its the old problem,,,,,,,short of fule, or no fule getting to the carb,,,,, clean out the tank filters and then clean out the carb and all the jets in it as well put in fresh fule and then it will run all day and with out the choke being on,,, thats a lot longer than 4 seconds!