Main jet to start plug shop

[Marco]

I guys,

I´d like to know main jet size to start doing plug shop.

2002 blaster everything stock only with procircuit platinium pipe and procircuit rear muffler.

Autolobe on
Airbox lid on
Portugal near sea level
Summer temps near 30ºc and winter near 8ºc

In Portugal have 95 and 98ron gas.

 

[89blaster89]

im gonna say drop in a 280 and see what it does for you. then work from there. get 280-250 main jets

 

[Blaaster]

A #280 sounds good to me, then plug chop.