I have a yz 250 and i changed spark plug bike ran for half an hour then it died out again... i took spark plug out cleaned it put it back and bike still will not start what could this be and how can i fix it(also, before the bike died it was bogging down.
Couple things- 1. If the plug was dirty after 1/2 hour you have either the wrong heat range plug(too cold) or 2. a fuel/carb issue. Buy a hotter NGK plug, ask for help the numbers don't always make sense. Use only full synthetic 2 stroke (I always liked bel-ray) and fresh 93 octane fuel. When you find a plug that works good buy a case of them, 2 stokes will foul plugs period. And some advice with your solution, never head into the woods without a spare plug, they will foul at the absolute worst time.
Don't forget to rate please!
303 views
Usually answered in minutes!
Maybe it is a bad plug? Does it still have spark at the plug? Spark for the plug wire to the side of the cylinder? Spark should jump a 1/4 inch gap.Use a phyllips screwdriver to see.
×