<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Hi,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I poked around in the archives and found a few TR6 references with Weber jetting, but for the most part the references fail to mention the choke tubes for the setups.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I've been running 28mm chokes since forever and was looking to swap in some 30mm chokes but I may have to do the swap without access to a dyno.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">So, the question is: if you change to different choke tubes, do you need to re-jet? I know the answer is yes, but I'd like to see some examples for folks that have done this (change from 28's to 30's or similar).</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">If you don't want to share setups on the list, I understand, but I figured in the interest of science, some real references would help establish a baseline. And yes, I know how small changes in the jetting can pay dividends. I've seen 7 or 8 HP gains playing with air correctors!</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Feel free to respond off list.<br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Regards,</div><div dir="ltr" data-setdir="false">Bob Lang</div><div dir="ltr" data-setdir="false">339-927-4489<br></div></div></body></html>