03 400ex lexx slip on k&n drilled lid. main jet says C146 but its not a factory jet. no K star symbol, noticed on the jets r us site that a dynojet 146 =honda 160. not sure what brand jet it is. anyone have a C before there jet number. im curious cus i ordered a honda 152 and 155 today and wanna cancel my order if there gona be way small. plug seems kinda greyish-tanish but was a step colder plug the prev owner installed. who knows why.

 

Call Dynojet tech service!

 

doea a 152-155 sound right for my mods? ive seen some people with 160-170 with the same mods and it just seems like a awful lot of fuel. also slip on has quiet core spark arrestor.
thanks