50cc 2 stroke wont start
- Thread starter Eric492
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Russ2251
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Basics first.
Got spark?
Got spark?
robbie
New member
If you primed it and choked it and it still won't start, it's probably flooded. I've noticed that this type of engine floods easily.
robbie
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One sure clue about flooding is if you see fuel dripping from the air cleaner when you're trying to start, and you notice a strong odor. When it floods you should open the throttle all the way, with the choke off, and pull the rope. That could get it to start firing. If it starts sputtering at that point, keep going until it starts.
If it's flooded really badly remove the spark plug, open the throttle and pull the rope to spin the engine quickly until you clear out all the extra gasoline. You should be able to smell it if there's a lot of extra gasoline fumes coming out. When you think it's all cleared out put it back together and crank it again and see if it starts.
My 49cc engine floods from time to time, so my policy is that if the engine is not running the fuel valve is OFF! I open it only when it's time to run the engine.
If it's flooded really badly remove the spark plug, open the throttle and pull the rope to spin the engine quickly until you clear out all the extra gasoline. You should be able to smell it if there's a lot of extra gasoline fumes coming out. When you think it's all cleared out put it back together and crank it again and see if it starts.
My 49cc engine floods from time to time, so my policy is that if the engine is not running the fuel valve is OFF! I open it only when it's time to run the engine.
fowler
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to un flood it take out the spark plug put a match in the spark plug hole and jump back
(its better than waiting)
(its better than waiting)
devino246
Official DIYGK Chem Nerd
sounds fun
fowler
New member
yer do it on our lawn mower a bit as the choke wont open
ok ill try that in the morning
KieranM
Doin It!!
also if its harder to pull than first attempt, thats a dead give-away that its flooded.
Doc Sprocket
*********
Good policy. I do that with my kart when I'm done playing with it for the day. I shut the fuel cock off, and let it idle 'till the carb's dry.
Dunno 'bout the match in the hole... Better to take the plug out, and give the engine a few spins. Be sure to keep your face away from the plug hole while doing...
fowler
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yes it works but the engine size is the size of the explosion
then yes it was flooded
That's not flooded, that's called a stuck metering lever.
robbie
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I figured these el-cheapo Chinese engines and carburetors have such poor quality control that they just don't always work properly. They're so simple it seems like it would be hard to adjust anything.
I bought this carb brand new on ebay last month ($12). The float seemed too high and it was flooding a lot, so I bent the levers down about 1/16". Sometimes it runs perfectly, and sometimes it acts like it's stuck in the up position (too lean). In your experience, are these carbs just inconsistent, or have you figured out a way to make them run correctly all the time?
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