yea i was just wantin to kno like what the spacing is on the spark plug of a 04 yfz..i didnt kno if it is like pre spaced for u or u had to space it your slef when u buy them i hope to hear from someone soon and all thanks tho for takin the time to read it and look at this

 

Go to yamaha's website you can look at the owners manual online for free and it will tell you, what i had to do for mine

 

thanks man

 

lol i went to the website and all and it wont open it says the format is not accpeted so ya does anyone kno what it is thanks tho man unless u can email that flie or somethin i tryed 4 times and it says that...? what to do now unless someone else knos?

 

you need javascript to open it but i looked for you, For a 04 yfz450 it says 0.7-0.8mm (.028-.031in)