Honda Activa(2013) - engine stops at idle after engine warms up after running for about 10 minutes; in cold engine no problem with idle speed. When cold engine the engine starts in one kick-start(with choke) and idle speed is good. After about 5~10 minutes the idle speed starts dropping and finally the engine stops at idle. To prevent engine stopping have to hold the throttle higher than idle- also at this stage, the engine refuses to start on kick-start and can start only on self with the throttle held high.
SOURCE: 1998 honda shadow will not start
Hi and welcome to FixYa,
Initially, a few possibilities you may want to check/explore:
Basically, a general cleanup of the fuel lines, tank and the carbs. Sitting for some time tends to leave varnish like coating on most parts.
Good luck and Thank you for using FixYa. Happy Holidays.
SOURCE: J.D snowmobile 340 73 carb wont idle appears internally clean.
my guess is that its not the carb at all but it might be the gas line in side the tank is cloged to the point whare you need to have it on choke in order to pull enough gas to the carb which would be the reason for it not wanting to come back down to idle quickly or it could be the fuel pump is cloged and if you tried that already than the fuel adjustment is way off and will need to be adjusted while a friend or family is keepin it running
and if that is not the problem than email me.
good luck:)
SOURCE: My XV125 will only run on tick-over until warm....
ALWAYS have a fire extinguisher on hand when working on carburetors.
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.
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Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Before putting the slide back in the throat of the carb, move the clip on the jet needle one notch lower. 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.
Please rate this solution. Thanks!
SOURCE: 04 crf450.hard start when cold(25deg).kick for 10min.once it
1. First thing is when was the last time you had your valves adjusted
2. On cold start up twist about 15 times on your throttle, as you do that the accelerator pump in carb will shot gas in cylinder, I have a 2003 yx426 & 2005 yz450 have to do to both of them when cold out to get started
SOURCE: I've got a 1985 honda
More than likely, the idle (pilot) jet is partially clogged. This is common when it will idle fine with the choke on, but won't idle without it. Sometimes a fuel treatment will clean the carburator, but not usually successful in cleaning the idle jet. Usually it requires removing the carburator bowl and and cleaning with the use of a gauge wire. The idle jet is usually recessed (next to the main jet).
A good video to show a generic carburator rebuild can be found at this link: http://www.youtube.com/watch?v=exa467_eoXw The guy goes through a pretty detailed description while going throught the process. The carburator will not look exactly like yours, but it will be similar internally.
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