lilevl wrote:yamaha_george wrote:OK pods do not require re-tuning that is urban myth if you read the WIKI , you will know why.
I already read this but honestly have no idea what the F*&K he's talking about. I'd need pics. I'm more of a visual learner.
thanks YG
Sorry but the bike I did this with is 4080 miles from me at the moment so no pictures.
Basically the engines state of tune depends on the intake tract ie airbox length tho the carbs and the length of the exhaust pipe for any given engine
When you remove the air box and put pods DIRECTLY on to the carbs you shorten the intake air duct drastically & screw up the mid range tuning.
The idea is to replicate the original intake length using a piece of PVC pipe that is the same length & preferably the same inner diameter as the rubbers that go between the carb & the standard air box.
This plastic tube must actually be longer because you need one end to be heated and stretched over the bell mouth of the carb so the tube can be clamped in place and the other end must be longer so as the filter can be clamped to it.
The tuned length is the bit between the pod's rubber flange and the end of the carb bell mouth that has to be the accurate measurement.
I hope that helped.