Hey all I have a newbie question If I install a Vance & Hines SS2-R slip on system do I need to re-jet my carbs? What will happen if I don't... or do re-jet? Thanx in advance

 

I need details, what bike? there are certain bikes, specifically the EX500 that you dont rejet, ever. but specifics like the model and year would help.

 

more details are needed really as said. But in most cases a rejet wont be required. You will have to retune/adjust the carbs tho.

 

I tend to disagree. I say re-jet especially if you did a high-flow air filter too. All in all, you might not see a difference, but you might start to get some fuel starvation in the upper rev range.
By adding a high-flow filter and aftermarket exhaust, you're changing the amount of air (i.e. more air to the engine) and exhaust (i.e. better exhaust flow), but if you don't rejet, the motor is still only getting the same amount of fuel as before.

 

Thanx for the input...sorry I forgot to state that I own a 93 CBR 600 F2