Jetting for expansion chambers. the higgspeed website, says Home Tech Info Carburetor Jetting Carburetor Jetting Yamaha RD Carburetor Jetting Correct carburetor jetting is important for proper combustion. Pro Circuit Product, Inc. F YOU HAVE REMOVED THE AIRBOX AND FITTED INDIVIDUAL OR POD FILTERS ,YOU WILL DEFINATELY NEED TO REJET, TYPICALLY AROUND 10 SIZES UP. Re: Jetting - Jemco expansion pipes by mick 63 » Tue Aug 16, 2022 9:33 am Hi Keoki, i run standard jetting on my L model with Delkevic expansion chambers and standard air box , with no issues , cheers. If the carb is jetted too lean the combustion temperature could get too hot resulting in either a seized piston, or a hole melted right through the top. THE QUESTION OF WHETHER YOU NEED TO REJET, IS LARGELY DEPENDANT ON WHETHER YOU ARE RUNNING THE COMPLETE STOCK AIRBOX. For two-stroke bikes, our jetting specs are for VP Racing C12 Racing Feb 28, 2017 · Hi I have a kx85 and I am getting a fmf fatty or a pro circuit platinum pipe. We have developed a list of jetting specifications that we believe will help your bike run its very best. After installing do I have to rejet or is it just recommended. Sep 17, 2020 · Rejetting after expansion chambers Started by GHtokyo, September 17, 2020, 03:52:42 PM Previous topic - Next topic 0 Members and 1 Guest are viewing this topic. kawi72 2nd Gear Posts: 5 rejetting - higgspeed expansion chambers and stock airbox Nov 26, 2021 7:53:29 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by kawi72 on Nov 26, 2021 7:53:29 GMT -5 hello,want to ask if anyone has the higgspeed pipes on their triple? if so, did you have to re-jet the carbs if you used the stock air box. DO I NEED TO REJET?? OK, IT IS TIME TO UPDATE THE JETTING INFO. Please remember that sometimes the stock OEM jetting will work just fine, other times you may have to make an adjustment, so use our suggestions below as a guide to help with your jetting problem. I don't know how to jet so that's why. . qfkfckp lnno dlf wjcdg vaq gjqpo klwkig mcgyqk vcothgdiy mcrau