jetting for a big bore?

[warrior87sambo]

what size jets do i need to get to go to a 366 bore? thanks!

 

[beastlywarrior228]

Noting really different from standard bore

 

[warrior87sambo]

so i dont need to rejet?

 

[1998yamahawarrior]

You'll have to do some plug chops to be sure. If other work was done to increase air flow you may need to go up a bit, but you wont know unless do it. Unless of coarse you have a dyno and other equipment to monitor it while its being run.

 

[warrior87sambo]

yeah i dont have all that... yet hehe. but for now im actually doing this for a customer's motor and for all i know his air set up is stock.

 

[1998yamahawarrior]

Still probably wouldnt hurt to do the plug chops, just in case he was running a little on the lean side or like how I know my old set up was on the rich side. Though for obvious reasons on the rich side is better than lean!!! LOL

 

[warrior87sambo]

ok will do! thank you so much