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Kymco mongoose 250 won't start

My wife was riding our 2006 kymco mongoose 250 for a couple of hours, we pulled over to rest, she turned the ignition off. After that it would not start, no power on ignition, no lights no nothing, battery is fully charged, I have no idea what could make it die just by turning it off.

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  • Motorcycles Master
  • 47,558 Answers

Remove battery terminals and clean both posts and terminals
with sandpaper until you see shiny metal. The black coating is lead sulphate which has a high resistance to current flow both into and out of the battery. Have a load test done on the battery also as a cell may have dies while you were riding and the bike was running on the alternator.

Posted on Jul 21, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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Benimur
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SOURCE: Daytona 675 won't start

Hi,

Two possibilities:

  • starting relay. This could actually be bypassed/jumped to determine if the starter motor will turn:
  • starter motor. most likely carbon brush.
Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 22, 2008

  • 7 Answers

SOURCE: battery keeps loosing charge- kymco cruiser 125, 2005

I had this exact same problem on a hipster 125, it was a faulty regulator module ( mounted under the seat) I also found a short circuit (somewhere) in the wiring loom between the regulator output and the chassis (probably what killed the regulator in the first place!) I cut and replaced the entire wire to save removing most of the loom and after testing reg to ensure it was dead i fitted a new one (about £60) bike charges and runs like a dream now even with fully lights approx 80% of the time. good luck

Posted on Jul 23, 2009

wd4ity
  • 4565 Answers

SOURCE: Harley won't start ... starter not working

That clicking sound you are hearing may be a circuit breaker tripping indicating a short circuit somewhere. I think the starter circuit is powered by the ignition circuit. If you have a short circuit in your ignition system the breaker will trip killing power to your ignition, thus the engine dying, and preventing power for the starter circuit preventing the bike from being restarted.

On your bike, I believe there is a chrome coil cover over the coil on the left side of the bike. Check and see if this cover has come loose. I've seen them come loose and fall down on the coil connector on top of the coil shorting it out. If that ain't it, just keep looking, there's a short somewhere. Good Luck

Posted on Mar 30, 2010

  • 4 Answers

SOURCE: Kymco Vitality 2t 50 won't turn over. When I

Take your spark plug out of the cylinder, reconnect it to the ht lead and place it on to your frame if you see a spark then your coil is fine, try a new spark plug, if there is no spark get a new coil and plug.

Remember there is a 2t and a 4t version of the kymco vitality and the spark plugs are different.

Posted on Jun 12, 2011

baxtom
  • 74 Answers

SOURCE: I have a kymco agility 50 and it won't start. It has no power what so ever, the starter won't turn over and the break light won't light when I pull the break. I checked the kill switch.

Check with a multi tester for voltage coming through the ignition switch lead wires + to switch wire - to ground you shoul get 12volt or higher, with the switch off you should have one live (feed from battery ), on you should have 2 or 3 in and out feed (possibly 2 out one for ignition one for light curuit), or disconnect the switch and check for continuity (12v battery wire and a bulb if you dont have a multi tester between each pin on the switch plug when turned on you should get a curcuit when on.

Posted on Jan 27, 2012

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1 Answer

2005 kymco moongoose 250 won't start, replaced battery and starter solinoid i have lights but won't turn over.it will turn over if its jumped> ideas??


Hi, Jenni and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a load test if necessary.
4. Check the battery terminals for damage or corrosion check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
5. Tip over sensor needs a reset.
6. Faulty ignition switch.
7. Faulty starter button.
8. Faulty kickstand or clutch pull in switch/sensor.
9. Starter control circuit, relay, or solenoid faulty.
10. Main fuse or circuit breaker may be blown or faulty.
11. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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KYMCO Mongoose KXR 250 Service Manual
http://www.motopartsmax.com/index.php/main_page/vehicle/tID/1/bID/25
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How to hot wire a mongoose 90


join the wires on the back of the ignition switch. Power wire to one of the others until the ignition light comes on. Better to buy a new key though.



KYMCO Mongoose 90 Specifications KYMCO USA

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1 Answer

What are some likely scenarios for a 2005 Mongoose 250 not starting


Bad pulsar unit
Bad CDI unit
Bad gearbox electrical unit
Bad coil
Bad HT lead or caps
Bad spark plug
Bad earth wires
Bad ignition key switch
Contaminated fuel
Dirty carburetor

May 25, 2015 | Kymco 2005 Mongoose 250

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Kymco 250 mongoose clicks, wont start battery solenoid are new


clicks, wont crank ??? check ground first, then suspect a bad starter as long as the solenoid and battery are good... a 12v test light will help here

Aug 28, 2014 | Kymco 2005 Mongoose 250

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Hi Matt only help I can give is look along top & bottom of chain for a tensioner it will be a round rubber wheel. If you cant find a tensioner it will more than likely you need to cut the chain down. If your not sure how to let me know & i'll let you know how. Also DO NOT USE IT while chain is loose as if you do & chain comes off you can crack engine case which then means a new engine

Apr 09, 2013 | Kymco 2008 Mongoose 250

1 Answer

I have a kymco agility 50 and it won't start. It has no power what so ever, the starter won't turn over and the break light won't light when I pull the break. I checked the kill switch.


Check with a multi tester for voltage coming through the ignition switch lead wires + to switch wire - to ground you shoul get 12volt or higher, with the switch off you should have one live (feed from battery ), on you should have 2 or 3 in and out feed (possibly 2 out one for ignition one for light curuit), or disconnect the switch and check for continuity (12v battery wire and a bulb if you dont have a multi tester between each pin on the switch plug when turned on you should get a curcuit when on.

Jan 27, 2012 | 2006 Kymco Agility 50

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