What do I have to do with installing aft. head and exhaust?

[Mile]

I bought a riva red exhaust and westcoast head for my 650 SJ. Tell me, now that I have installed it, do I need to do any carb setting?
What about the electricital settings (cdi box), is it ok if I just leave my stock one as it is?

 

[Mark44]

Yes you will have to tune the carbs, look in the tech section for the tune thread. You will also need to check your squish for the head install.

Mark44

 

[DC SUPERJET]

You should be fine leaving your electrics as is.

You will have to tune your carb, mainly for the pipe. It seems like a lot of people do not have to change carb settings after increasing compression.