Hello right hopefully getting an ethos full system with race headers, not a clue what the jetting and needle height is going to need to be anyone else running this system and can make any suggestions ?

Need more details/specs of your bike that you want to use a full ethos system on to understand.

smithwoodwest wrote:Hello right hopefully getting an ethos full system with race headers, not a clue what the jetting and needle height is going to need to be anyone else running this system and can make any suggestions ?

generally Japanese systems are designed to run ok with stock jetting.

If its an 89 bike you can put at least 115 / 118s in it as 110s are quite lean anyway.

118 / 120 is a choice used too, depends on altitude but ive found this to be rich sometimes.

Effectively standard well it's standard bar a scorpion end can and ignitech tcpip4

Have you opened the carbs before and look inside what is fitted right now?

Nope I haven't to be honest,

Well, thats the first step, and I'd also pull the plugs and have a look at those.