Hello !
Engine spark plug in what status is it ??? , it is easily screwed into your engine's throttle as it can get rid of compression if the engine bonnet thread is broken.
After the missed start attempts, the spark plug is always dampened with gasoline, the spark is no longer present because it is short-circuited by the existing moisture between the spark plug electrodes, it is very important that the spark plug must be clean, not wet.
Always after failing engine fails, put the spark plug out, blow the engine through a few short maneuvers, without the spark plug, then with another spark plug, carefully mount it not to cover the thread, and then mount the power cord plug to the spark plug, and try a start, if you have a shock of air, it is on the middle action.
Spark plug It is good to replace it with another one to be sure to start.
Always observe the distance of the external electrode from the center of the spark plug, this distance is very important, if it is too big it does not start, or it starts hard, goes off, etc., at a too small distance it does not turn and gets wet quickly, and the engine it worked badly.
The usual values for the distance between electrodes are around 0.7 ... 1.2 mm ... 1mm is a good distance.
The wet spark plug can be rebuilt by holding it with the electrode in the flame of a gas cooker.
Keep it in the oven flame until the outer electrode is bleached, then let it cool down normally, then clean it with a wire brush.
Follow the air route to the carburetor, do not be clogged with rags, if you have the air filter ok, etc.
As you described the symptoms, with a good spark plug, it should start.
Good luck!
SOURCE: honda pal 2 stroke scooter
Are you adding oil to the gas? (32/1 = 4 ounces per gallon)
Do you still have spark? Install a new stock spark plug.
Clean the carb, but follow these steps >
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 two screws 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. Let the bike warm up then set the idle speed. This process should get you back on the road.
SOURCE: I have compression, spark, and gas/oil mix. engine not starting.
When cleaning the carb., use a De tek Brush,(used for cleaning between teeth), to clean the small portals. The smallest particles can keep it from running. More than likely though, It will be the small screen in carb. It can become clogged up to the point where you can't even see daylight through it; not good!
Jim
SOURCE: cant get my 50cc scooter to fire up-no spark. any
SOURCE: My 50cc 2 stroke engine won't start, it has fuel
Hi and welcome to FixYa,
A couple of ideas:
For a no start 2 stroke engine with your described condition, a possibility to consider is too much / unburned 2T oil in the lower combustion chamber; remove sparkplug, air dry (or use compressed air).
Good luck and thank you for asking FixYa.
SOURCE: WON'T START .IS 70# COMPRESSION ENOUGH. SPARK AND
70psi compression indicates it's rebuild time; the compression should be double that. You can confirm what the compression should be with good rings by putting a few drops of oil in the spark plug hole and testing compression "wet". That figure will be what a new saw would have.
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