2003 Yamaha YZ 125 "spark" Questions

I have a 1978 yz 125 with a poor spark. It won't stay running. poor spark or poor compression, replace the spark plug cap (piece that goes on spark plug to coil wire)

weak spark on 1993 yz 125 Hi, Anonymous there is no such thing as a weak spark even though dozens of riders will swear that's what they have and are dying to show you, the bottom line is either you ...

still wont stat new piston plug storor cdi coil no luck help So you've tested a spare spark plug sitting outside grounded to cylinder and you defintely have good spark? If so....is it getting fuel? Is

Faint spark Very faint spark at the coil wire, can anyone help me with checking the electrical system? please replace the ignition coil, and spark plug, check the source stator from the engine / ...

my yz 125 will not give spark i have changed the ignition coil twice and still no spark have u changed the spark plug. it could be oiled up.

2003 yz125 wont start Not much info to go by, but i'll give some things to check. Got fuel? Got Spark? Got Compression? If you have all these things, after kicking several times, pull plug to see if ...

why does my bike shut-off after 3 laps See if you loose spark when it shuts off. If you have good compression (Do a compression test) then you need to verify which you are loosing, fuel or spark. Also

the motor sparks but its weak. hello i got a 1997 yz 80 2 stoke the motor has a new cdi and a band new piston but the motor will not spark if u kick it over slow u gotta kick it over fast to make it ...