My MC-13-250 has problems

[JR]

Long story short someone has messed with this scooter. First of all the Bali 250 like a lot of scooters does not come with a electric fuel pump, they come with a vacuum pulse type pump. Some people do replace them with electric ones, myself I don't.

Second picture is the radiator and the brass colored switch is what is called the radiator thermo switch or sensor switch. When the radiator comes up to temp at around 167F this switch closes and turns the cooling fan on. It's apparent it's been unhooked and you mentioned the fan ran so it's been fixed to run all the time, not good as this will keep the battery down in most cases. In cold weather the fan won't even come on and in lots of cases isn't needed.

Last picture is the CDI part of the ignition system.

Smoke, temp pegged out all bad indicators of possible engine problems. This is the vertical 244cc cloned engine.

JR

[ykdavid]

can anyone tell me what this is

and why it's making a "clicking noise" when i try to start my scoot?

[WarrenS]

Starter solenoid.

[ykdavid]

why it's making a "clicking noise" when I try to start my scoot?

[imnts2]

JR is right in everything he told you.Have you checked oil?
The deal now is to give you a transfusion of mechanics blood. But that probable won't work. So the job is to either help you find a good scoot mechanic that will help you with a bit of cheep labor or___ convince you to use your brain and think befor you ride any more. You may be lucky and done little or no damage to the motor. But you got be patient and methodlogical.

Have you a VOM? any idea what that is?
Cheapest place to get a decent one is Harbor freight. Under 10 bucks.
Then you gotta learn to use it. Cheepest place to do that is a public or school library. When you have figured out how to measure the voltage of an ordinary flashlight battery (1.5Volts), check the voltage of your battery. Anything under 12.5 volts is a hint why the solenoid clicks and the starter does not turn. So, while you are a harbor freieght get a battery charger too. Again JR wa right - that fan by pass emptied your battery.
If charging your battery fixes the flat battery, perhaps it will start. Or at least spin.DON'T BE STUPID. CHECK OIL LEVEL AND DO NOT RUN IT HOT ANY MORE.

You got to get a new relay and wire it in. You should check compression and then see if is burns oil.

That's a good start.

I think you did good. For someone who does not know much about engines and such, you at least stopped and tried. So keep it up. Remember any idiot or dumb sh!t can crank the throttle open. It takes a bit of brains to stop and wait and let it cool down ad be patient.

I'll check this every day for awile.

Good luck

lefty2

[ykdavid]

I checked the voltage the other day it was like 11.3 but I still need a battery charger. But with 11 volts would still crank right?

I plan to have new oil's in it before I ride again.

I also found a wire with to white and green ends connected to each other dangling near the radiator. I plugged them into the "radiator thermo switch" they fit but not sure whats + or - . now when I turn the key all I hear is the fuel pump. (no fan) maybe that's fixed?

I also cleaned the starter last night. [THE SPRINGS WHERE A B!TCH TO PUT BACK IN!!!]

My biggest problem right now is getting it fired up again. I turn the key to the on position, the fuel pump comes on then when I hold down the break and push the start button.. CLIIIIIIIIIIICK.

My worst fear is that the motor is locked but it seems unlikely and I'm not sure how to check that on a motor such is this. I'm still trying to figure out, what was all that smoke on the restart in my trip?

[JR]

11 volts on the battery won't cut it. Charge the battery slowly no more than 1 to 2 amp charger. Charge it for 5 to 6 hours, take if off charger and let it sit for 1 hour then test.

If it isn't at 12.5 Vdc or better than add a battery to the list. That's why the click in the starter relay, low battery voltage and no 11 volts will not start it.

JR

[edfr]

That solenoid picture you put up Get a screwdriver and TOUCH BOTH TERMINALS and see if it spins your STARTER. Solenoids will usually click if they are bad or you have a weak battery. So bypass the starter button and touch both terminals that is what happens inside the SOLENIOD a contact makes contact with both posts and passes the Battery voltage to the starter.
Lefty

[scootnwinn]

Everything above is good info the only I would add is try jumping it with a car when the engine is OFF. If it cranks you know the battery is the issue. I don't think 11 volts will get the starter spinning either though... Hope it works out for you

[ykdavid]

I'll keep you guys in the loop

Thanks for the help.

[ykdavid]

Since my last post I've got a battery charger and the scooter will start now. I've changed motor oil & gear oil and it runs smoother now. My scoot still overheats but since draining the radiator and refilling it takes longer. If you read my earlier posts I told you guys that I found the a wire not connecting the radiator that looked like it should so I connected it. now the fan never turns on so iv put the wire back now the fan starts running when I turn the key again. <-- I thought that would keep the temps down but not enough.

When draining/refilling the radiator I feel I did every thing right, I drained from the bottom. I made sure to get all the air out of the system when I refilled and for the most part the scoots temps run lower now but when I get around 45-50 the temps just climb the never come down. So on my test runs the scoot runs fine and does not overheat unless I get over 45.

Right now I feel if I stayed under 45 it would never overheat. <-- but that's not practical.

Anyone know whats wrong?

[JR]

It's air and nothing else. I wouldn't take much stock in what some told you here.

www.scootdawg.net/showthread.php?t=52747

Not the thermostat, not a bad radiator, no leaking head gasket. There is one more possibility and that's a faulty water pump but you need to bed sure the air is out first.

JR