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Post by dragnmastralex on Jul 6, 2015 19:15:02 GMT -5
I have a 50cc chinese scooter I bought it new.
the spark plug is good and gets a nice spark, there is fuel in the scooter, and the battery is fully charged.
at the 3rd week it started stalling when it idled so I had to give it a little throttle to keep it started.
by the 5th week I had electrical issues that made it not start at all with the headlight and running lights not working.
by the 7th week I had a mechanic look at it and he said it was a loose wire (it stalled out pulling out of his garage and didn't work anymore) I wasn't going to leave it with that crook he would have nickel and dime me to death.
I had a neighbor mechanic look at it. I was able to start it 3 days ago and drive it around no problem. 1 day later it wouldn't start and the headlight and running lights don't work again.
started it this morning and ran it shutting it off and starting it no problem. waited for 40 minutes later and tried to start it again now it won't start anymore.
I charged the battery to full several times and tested the grounding, the carb, the starter, the CDI, and the alternator... all work fine.
checked the air filter and the fuel pump... both are clean and working.
the kickstart doesn't even turn it over...
any ideas?
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Post by tvnacman on Jul 7, 2015 6:23:20 GMT -5
adjust the valves
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Post by dragnmastralex on Jul 7, 2015 21:59:17 GMT -5
if its my valves that are the problem why doesn't my headlight and front running lights come on until the scooter is started? they are suppose to come on when I turn on the key... they always have until recently. I checked all the wiring everything is connected securely and the lights do come on when its running. is there a reason why they stopped working on the key turn?
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Post by dragnmastralex on Jul 9, 2015 18:21:34 GMT -5
wasn't the valves... adjusted them. I have a friend that's a mechanic he looked at it and even he is stumped. he thinks somehow too much gas is getting into it... we give it full throttle to start it an it will start then die out as we hold the throttle. he played with the screws to adjust it but it wouldn't stay started. we tried it with starter fluid in the intake and it still wouldn't start. he mentioned the fuel regulator because he thought too much gas was pouring into the carb and he tried to suck on the other hose from it and it wouldn't give any gas.
so any opinions?
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Post by scooter on Jul 9, 2015 18:56:48 GMT -5
wasn't the valves... adjusted them. I have a friend that's a mechanic he looked at it and even he is stumped. he thinks somehow too much gas is getting into it... we give it full throttle to start it an it will start then die out as we hold the throttle. he played with the screws to adjust it but it wouldn't stay started. we tried it with starter fluid in the intake and it still wouldn't start. he mentioned the fuel regulator because he thought too much gas was pouring into the carb and he tried to suck on the other hose from it and it wouldn't give any gas. so any opinions? It sounds like an overly rich mixture, assuming it's not a bad ignition, bad gas, loose wire, or other type of problem. I'd clean the carb and jets if you have not already done so. A good running scooter will usually start without opening the throttle. Usually the bowl valve is enough to control fuel flow into the carb. |
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Post by dragnmastralex on Jul 9, 2015 19:09:32 GMT -5
its not the carb... I know this because it did it with 2 different carbs and the one in it now is brand new completely clean... a 20mm carb too so it breaths better... so new carb still same problem, not the carb. Also its clean premium gasoline less than a week old premium unleaded.
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Post by JerryScript on Jul 9, 2015 19:53:57 GMT -5
What did you set the valves to? If you pull the plug, then put your finger over the hole and try to crank it, does it blow your finger off the hole? How did you check for spark? If you pull the plug after trying to start it, is it dry or wet?
If it wont fire with starter fluid, it's most likely either compression (valves or rings), or spark (no/weak spark or timing off).
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Post by dragnmastralex on Jul 9, 2015 22:00:51 GMT -5
there is compression, covering the intake there was suction, covering the exhaust there was pressure from it trying to blow... there is a strong spark tested the plug while it was in the cord against the frame and saw a spark when I used the starter.... your not listening it does start if you catch the throttle just right, stays on but then slowly dies out... the mechanic friend says there is a LOT of gas coming into the carb when he puts his fingers in the back of the carb and tries to start it... more than normal he thinks.... and he says that he thinks the reason its stalling is because too much gas is flooding it, also the scooter won't start because its flooding unless you open the throttle which burns the gas up instantly while trying to turn over the engine. we just don't know where the issue is because we don't know where the extra fuel is coming from. the fuel lines look good, the filter is great, it's one of those issues we don't know how to look for.
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Post by cyborg on Jul 9, 2015 22:36:42 GMT -5
Change the vacuum line from the intake manifold to the fuel tap,,,to clear line to see if there is a leak in the diaphragm ( crack or hole) and introducing extra fuel into the intake manifold ,,,I always change all my fuel and vac lines to clear so I can see problems at a glance,,,bet you a 10 spot on that one
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Post by pauldog on Jul 11, 2015 20:28:31 GMT -5
You have gotten some good advice. Please re-check your valve adjustment. make sure it is top dead center. Doesn't take long to do. You have Spark. You have gas it narrows it down to air. Adjust the carb to 2 1/2 turns out. Righty tighty lefty lucy. Tighten the two nuts on top of the intake manifold. That's the tube the carb goes into. Hook up the air box, Open the throttle and spray in starter fluid. Close the throttle and roll it over. Open throttle while turning over. Should you get it to run spray some starter fluid around the intake manifold. If you get increased ideal you have a leak. The lights are a different issue. Check the fuse near the battery. Make sure it has a solid connection. Also check to see if it has blown. One other thing to check is your oil. If it is over filled it can lower your compression. Good luck.
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Post by geh3333 on Jul 13, 2015 17:10:04 GMT -5
What you want to do is disconnect the fueline from the carb, then see if it wants to start with starting fluid. Your needle valve may be stuck open letting in too much fuel. You can usually smell the gas if the scoot is flooding . I just had an 80cc Honda elite that was not starting . actually it would start and idle for a few seconds , then it would shut down and not start for about 40 mins or so. The valves were tight and the carb needed adjusted. I did the valve adjust first but the scoot still would not start . after I did a good carb adjustment , the scoot fired up and ran great.
When it comes to your lights , that has to be an electrical issue.
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Post by dragnmastralex on Jul 20, 2015 18:38:42 GMT -5
I'm ready to give up... not even full blown mechanics know what is wrong with it... scooters are just junk, completely unreliable you have to rebuild them every few months and it cost more to own one than buying a whole fleet of cars. No one here in the entire state of Ohio even knows how to work on one and it shows. I've replaced 4 major components and still have the same issue as I have had since it started to mess up 3 weeks after I bought it NEW. Nothing can fix this scooter without replacing every single part constantly and paying someone a fortune to do it. A waste of time and money.
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Post by geh3333 on Jul 20, 2015 21:24:55 GMT -5
I'm ready to give up... not even full blown mechanics know what is wrong with it... scooters are just junk, completely unreliable you have to rebuild them every few months and it cost more to own one than buying a whole fleet of cars. No one here in the entire state of Ohio even knows how to work on one and it shows. I've replaced 4 major components and still have the same issue as I have had since it started to mess up 3 weeks after I bought it NEW. Nothing can fix this scooter without replacing every single part constantly and paying someone a fortune to do it. A waste of time and money. Where are u at in Ohio ? I'm in western pa. If not too far maybe I can help. And I'll do it for free . |
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Post by JoeyBee on Jul 20, 2015 21:29:08 GMT -5
I'm ready to give up... not even full blown mechanics know what is wrong with it... scooters are just junk, completely unreliable you have to rebuild them every few months and it cost more to own one than buying a whole fleet of cars. No one here in the entire state of Ohio even knows how to work on one and it shows. I've replaced 4 major components and still have the same issue as I have had since it started to mess up 3 weeks after I bought it NEW. Nothing can fix this scooter without replacing every single part constantly and paying someone a fortune to do it. A waste of time and money. Where are u at in Ohio ? I'm in western pa. If not too far maybe I can help. And I'll do it for free . +1 bone. |
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Post by geh3333 on Jul 20, 2015 21:35:18 GMT -5
Where are u at in Ohio ? I'm in western pa. If not too far maybe I can help. And I'll do it for free . +1 bone. Thanks buddy ! My brother lives about an hour or so into Ohio from Greene County pa. If I had to , I'd stay at his place for a couple days and see if I can help our new member get his scoot up and running. |
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