Questions & Answers for: 2003 kx 125 spark

...KX 125 Get a new NGK spark plug one heat range hotter than stock. Be sure the fuel mix is 32/1 using two stroke engine oil ( not motor oil ). A 32/1 mixture equals 4 ounces oil to 1 gallon of gas. ...

...2003 kx 125 to run properly my kx 125 wont run properly. when i start it it idles fine but when i rev it it either starts to bog or it will rev nicely. if i run it and rev it perfectly, it will clear ...

spark I have a 1992 KX 250 that is still in showroom condition. Parked it 2 years ago due to overseas work and just went to fire it up and it has no spark. It was running when it was parked. I tried a

2003 kx 125 that will only run for 15 minutes before it fowls out the sparkplug, can anyone tell me how to fix this problem? also it stalls at initial take off which is about the first 1/8 of throttle

cant get my kx to stay running it starts by kicking but stalls start with a new spark plug,if the bike sat for along period of time ,gas can gum up the carburator

...kx 125 the top end needs to be rebuilt it has been rebuilt one time already so what parts would i need to get is it hard to do or what piston kit, wrist pin bearing, top end gasket kit and a honing ...

...kx 125,it looks like the previous owner installed a new piston and rings,the bike dosnt runn,i put new antyfreeze and new mixed gas,i got spark an a new spark plug,i cant get the bike to start,i even ...

hi i have 86 kx 125 has gas has spark backfires out the pipe wont start cleaned the carb?ps new plugin it to. need help!!!!!!!!!! sounds like the timing is off or you have cracked rings on the piston.

...KX 125 The bike has compression and spark, the carb seems to be flowing fuel but it won"t fire and seems to be emptying the cylinder we've put fuel directly into the cylinder enough to fire ...

...2003 kx 125 is sputtering in high rpms i just baught it and i dont know what is wrong it has brand new filter i cleaned the carb and it starts first kick every time no chok even with cold so it cant ...