I bought a jetmoto 110cc for my kids off of craigslist... long story short, I can't get it to run. They said it was used only once or twice, but then it had sat for about a year (it was the lady's brothers and then he got divorced and moved so it sat and now they were selling as it just took up space - it does appear to be brand new, no scratches etc, tires are brand new, has certificate of origin from Dec 09)

I checked the spark plug by holding it against the block and I get spark - but I am going to try a new spark plug today.

I took off the plastic to get to the carb and cleaned it out, took out the 2 jets, the float and cleaned it all out, but it didn't look gummed up or anything.

I did drain the fuel that was in it, but I heard I should try an ethanol free gas (which I can only find at one store in town now) so I will also try that.

But basically, I get good crank from the starter and maybe 2 or 3 times I have gotten it to "put, put, put" for a second but that's it after a whole weekend of working on it.

I called some places in town and they said they won't work on them as they can't get parts, so I am still searching for what to do to get this baby to run.

Any help is appreciated! THANKS

 

when you cranked it/turned it over, was the spark plug wet with gasoline? when you cleaned the jets, could you see daylight through the little orifices in the jets? if the fuel tank has a pet **** valve, can you get gasoline to flow to the carb in the "on" position and the "Res" position? in other words, pull the fuel line off of the carb and watch it flow a little bit. OR, you can open the screw plug on the float bowl drain and see if you have gasoline there.

 

The spark plug was wet, when I cleaned the jets I could see through them and then the long skinny one had wholes that I could see thorugh as well. It was my first carb cleaning experience so I could have missed something in there, but basically I just took off the float bowl, the jets, the float and cleaned them all out really good, and then shot cleaner through the rest of the carb as well. No petcock valve, there is nothing to switch it from on to reserve - the fuel line goes like this: Gas tank -- fuel filter -- carb. So nothing inbetween. And the fuel filter shot gas all over my garage when I picked up the tank so it's getting through... Also the screw plug on the bottom of the carb - when I open it, the fuel does come out, so I know it's getting down there.

Thanks

 

on the jets, when you looked down the throat of them, axially, could you see daylight through them? not just through the holes, but down them longways? i know you said you had spark, so i presume you're trying this with the left hand brake engaged so as to satisfy a safety interlock(i think your quad has a brake safety interlock on it.)

 

Yes I could see through them long ways (like looking though a coffee stirring straw) and through the wholes as well. I did try the other trick you emailed on and that's when I was getting it to 'put put' (for lack of a better term) but it also gave me a small back fire once.

And yes, when I am starting it I have to be holding the front brake on the left side or the starter won't go.

Also, another question, when I got it I picked up a new battery and charged it over night, and then the first time I tried to start it I only cranked for a total of 20-30 seconds (combined not all at once) and it drained my battery. After taking off the plastic I saw one of the screws on the solenoid (not sure if spelled right sil-in-oid if you sound it out) was reallly loose and when starting was shooting sparks/shorting - would that have been the cause of my quickly drained battery?

 

i'm not an electrical expert, but i really don't know if the solenoid, yes that's correct, would drain it or not. new batteries are to be charged slowly, like a 2 amp rate for maybe 4 hrs. just refer to the directions that came with the battery from the manufacturer. it's not good that the solenoid sparked. but i don't really know if it would drain it or not. it sounds like there's a hard draw on the battery. how fast is the starter turning over? have you put a meter on it to see what volts it is pulling? heck, i've cranked on an engine quite a while without draining the battery. i'm presuming all acid/water levels are adequate.

 

maybe mywifesquad, outofline, or another expert will chime in. i'm just about out of ideas on this one. i'm anxious to know what's going on with this quad.

 

I tightened up the screw on the solenoid and it quit sparking, but I haven't gone back to the same battery, I have had it connected to another battery. It cranks pretty fast, as fast as I would expect it too or as fast as any other four wheeler I have heard.

Anyways, on getting it started, what should I do next?

I am going to try to pull the carb off again and look at it, this time with someone who has done it before and see if I am doing it right... also going to try a new spark plug (not sure if that's the prob but I hear a lot that the spark plugs that they come with aren't very good).

Any other thoughts - thanks a lot for your help so far, I am leaning more towards a fuel issue than spark.

 

i don't know what size spark plug it takes, but NGK is a very reliable plug. that's all i use on my quads. i agree, i believe it is a fuel issue. i couldn't imagine the valves having a problem or that it may be low on compression.

 

have you tried it without the air filter on? just curious....
mice don't have a nest in the exhaust pipe do they?