Question about Cobra Panther 50 Motorcycles

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Cobra 50 fourwheeler wont start cleaned carb and new plug

Posted by Anonymous on


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  • Cobra Master
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Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check 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.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
Kasea 50cc won start engin turns but no firing at all Off Road Forums...
ATV Connection
Aeon Scooter Parts Racing Planet USA
Tips and Tricks for Motorcyclists

Btw, I’m available to help over the phone in case u need at

Posted on Jan 31, 2016


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Posted on Jan 02, 2017



  • 292 Answers

SOURCE: I have a LT 50 2002 wont start have spark, 120psi

have spark and compression but do you gave good supply of fresh gas?

Posted on Apr 01, 2009


  • 195 Answers

SOURCE: wont start

If it starts with ether then you have spark, compression, and air. All you need is fuel. Make sure that you have fuel at the carbs and that the fuel is flowing to the cylinders. Check that the petcock is open and free of debris. Hope that helps;
RPM Northwest

Posted on May 19, 2009


Vince Albi

  • 217 Answers

SOURCE: i have a gilera runner 50 sp and it wont start

Has it been laid up for months? Did you leave any gas in it untreated? You may need to boil out the gas tank . Try a carb cleaner first that you add to the gas.Check the plugs.Are they black/oily (too rich / worn ring), Tan ( correct ).they tell a lot about the condition of the engine. Good Luck

Posted on Sep 15, 2009

ollie reece

ollie reece-jones

  • 1167 Answers

SOURCE: it started bogging down when riding and now it

hi buddy are you mixing it correctly with a mixing bottle with 40:1 ratio also on the carb will be a screw mixture screw turn this all the way in and unscrew it 1 1/2 turns out and try this also is there compression get back to me cf6410f.jpg

Posted on Sep 19, 2009


  • 2 Answers

SOURCE: starts hard and wont idle, no low end power, has

The starting hard and Idling problem sounds like carb needs cleaning. If this bike has moved from a different area it might need different jets in the carb. I might have jumped the gun the gas/oil mix ratio is very important check that first. your spark plug should be a golden brown when mixture and right jets are in. This might resolve the low end power if the oil mix is to rich or you might need piston rings. GOOD LUCK

Posted on Aug 18, 2010

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2 Answers

What to do when fourwheeler wonts start

  1. check the battery
  2. Make sure kill switch is not engaged
  3. Check gas level
  4. Does the ATV have a safety tether? If so reseat it.
  5. Make sure gas is on, some atvs have switch.
  6. Also check to make sure you are not running on reserve tank.
These are some basics, others are spark plug, starter and carb.

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