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Post by Alleyoop on Feb 25, 2016 21:13:37 GMT -6
Well right now you can use the electric start to start the motor, then the next test is can you kill the motor once it starts with the key off OR hitting the killswitch  |
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Post by Alleyoop on Feb 25, 2016 20:54:47 GMT -6
The green and yellow should have voltage if you notice that is the same wire that activates your stop light when you squeeze the brakes.
If you can find the bad connection on the other GROUND wire that would be good because it may be where something else needs that ground as well.
Now once the motor starts grounding out the CDI is what kills the motor. Turning the KEY OFF grounds the CDI also flicking the killswitch grounds the CDI to kill the motor.
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Post by Alleyoop on Feb 25, 2016 20:43:51 GMT -6
In the event that I wire a new ground to it, I can just ground to frame at a good spot, yes? You got it simple dimple if you don't want to tackle finding the problem with the other wires ground. |
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Post by Alleyoop on Feb 25, 2016 20:33:57 GMT -6
ARE WE BAD OR ARE WE BAD   |
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Post by Alleyoop on Feb 25, 2016 20:32:26 GMT -6
FANTASTIC!! Trace the other wire and find the break and or bad connection. If need be you can just rewire the other therminal to ground yourselve but we GOTS it |
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Post by Alleyoop on Feb 25, 2016 20:20:38 GMT -6
YES, get some wire, I beleive the bad wire is the OTHER WIRE GOING TO THE START BUTTIN the RED/YELLOW is good. Try a quick test hook the RED/YELLOW to the toggle switch and THEN TOUCH the TERMINAL with the wire to the frame turn jey on squeeZe the brake and it should spin the starter .
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Post by Alleyoop on Feb 25, 2016 20:17:53 GMT -6
Ok you know what I think I think the other wire going to the START BUTTON IS NOT GROUNDED I assumed that it was but it makes no since that your TOGGLE and the SWITCH did not work.
SO trace the other wire going to the PUSH BUTTON and I bet it is broke or disconnected or grounded to some rusted part . Because if you just connect the RED/YELLOW wire to the toggle switch AND TOUCH BOTH it to the frame it will spin the starter.
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Post by Alleyoop on Feb 25, 2016 19:37:04 GMT -6
THIS IS FOR THE LINHAI 257cc MOTOR:  THIS IS FOR THE HELIX 244cc MOTOR:   |
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Faster!
by: Alleyoop - Feb 24, 2016 23:27:37 GMT -6
Post by Alleyoop on Feb 24, 2016 23:27:37 GMT -6
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Faster!
by: Alleyoop - Feb 24, 2016 21:11:00 GMT -6
Post by Alleyoop on Feb 24, 2016 21:11:00 GMT -6
Do you have a performance variator bigger in diameter than the oem? For the bucks taller tranny gears will get you 3-6 more top end mph.
Alleyoop
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Post by Alleyoop on Feb 24, 2016 20:00:21 GMT -6
To verify that there is a problem with the GROUND wire from the SWITCH TO THE SOLENOID: Do the following 1. Key On 2. Tape the break on stop light should light 3. The Green/Yellow wire going into the SOLENOID should have voltage. 4. Probe the RED/YELLOW ground wire right at the SOLENOID and MANUALLY GROUND it. 5. Starter should spin. If above works THEN the RED/YELLOW(PUSH BUTTON GROUND WIRE) is good and YOU KNOW WHAT IT IS THE OTHER WIRE GOING TO THE PUSH BUTTON THAT IS NOT GROUNDED becaue you checked continuity on the RED/YELLOW wire going to the solenoid and it was good. So I bet the switch will work if you trace the other wire and make sure it is grounded or yo can just leave that alone and get your own wire and hook it up and ground it yourself. I assumed the other wire is grounded but I bet it is not. CLICK TO SEE WHAT I WROTE:  |
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Post by Alleyoop on Feb 24, 2016 19:04:50 GMT -6
Since your a certified mechanic you know in colder weather motors need more fuel and in hot weather less fuel. But your complaining about starting and stalling. The starting problem you need to richen up the fuel ratio mixture on the carb, turn it counter clockwise to richen it.
The stalling IF this happens coming to stops after riding around a little that is a classic case of the valves being tight and the motor is loosing compression and will not hold low idle.
If the stalling is when it finally starts then richen it up will fix that porblem as well.
As far as the MAIN JET it is not set in stone which size will work, all motors are different some have more compression than others and produce more power and some have less and produce less power. But for a 70-72cc BBK most will take a #85-#90, your 80cc+ bbks will take #92-#98.
A tach on it will help determine if it needs more or less fuel by what RPMS it runs at WIDE OPEN THROTLLE.
Alleyoop
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Post by Alleyoop on Feb 24, 2016 15:07:21 GMT -6
Normally You can have the KILLSWITCH on the NO RUN position (GROUNDING THE CDI) and you are able to crank the motor over but it will not start because the PLUG is NOT FIRING. But you already proved that the SOLENOID is getting voltage with the brakes squeezed and you grounded the RED/YELLOW wire)GROUND WIRE FROM THE PUSH BUTTON and it SPUN the starter. So that is why we are checking the push button and the TWO WIRES to make sure there is no CONNECTION breaks from the switch to the SOLENOID. HERE IS THE KILLSWITCH TUTORIAL: www.chinesescooterreference.com/jr/KillSwitch.pdf |
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Post by Alleyoop on Feb 24, 2016 14:52:09 GMT -6
One thing that does keep entering my mind as I try to comprehend this circuit is, that green/white wire coming from the kill switch. I know I got a continuity reading from it but , isn't it the voltage to the start switch ? I don't get voltage from it, in either of its positions  The start push button switch IS JUST A GROUND OFF AND ON no switch voltage at the START BUTTON. What sends voltage to the SOLENOID is the BRAKE SWITCH it also splits and sends voltage to the stop lights, that is why we always ask if when you squeeze the brakes(either one) your stop lights come on. Now the Killswitch IF you have a AC CDI all that does is JUST LIKE the PUSH BUTTON it makes ground and grounds the CDI to kill the motor same thing happens with the KEY OFF it grounds out the CDI to kill the motor. Now if the CDI is DC(meaning it is powered by the battery) then when you turn the KEY ON the bottom PLUG on the TWO PLUG on the CDI if tested should read 12volts with the KEY ON.  |
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Post by Alleyoop on Feb 24, 2016 14:13:15 GMT -6
Easy enough to find out if the switch is bad JUST MANUALLY touch both wires it should activate the SOLENOID.
Alleyoop
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..BAD TO THE BONE..
