when to change a spark plug?

[rey d samonte]

Questions to those persons with a lot of experience out there, just want to ask when to change a spark plug? I've change mine with a denso iridium correct me if wrong with denso.. bought it around 4 to 500 pesos at triumph........

 

[traxxas-modifier]

if your bike wont start, then that means its time to change sparkplug

 

[DreaderX]

What about VERY hard start during cold engine??

 

[sacker42]

What about VERY hard start during cold engine??

use the carb choke and if it didnt work thats the time you need to check your spark plug

 

[undeadx]

the manual stated that you should change your spark plug every 12000km. personally, i check the gap and clean the spark plug every 1 or 2 month so it last longer and perform optimally until i reach the next 12000km..