I put cobra strights on my bike and now its poping through the pipes

I have a 2007 Honda Shadow Sabre VT1100 and I also put after market pipes on it from Vance and Hines. I also have to keep it choked when first starting and sometimes even hold the throttle a bit while it warms up. The bike has two carburetors and the best solution I have found by lots of asking around of mechanics and bike folk is to get it rejetted through Dyno Jet. It is meant for bikes with after market exhausts and much less back pressure from the lack of those stiffling baffles in the stock pipes. I have also noticed the power loss in the middle torque range and backfiring because of the bike running in a lean condition. The Dyno Jet website is a good place to find the correct set and corresponding part number, but then I suggest finding a cheap place online so you avoid retail price :) Hope this helps. Oh, and don't forget to buy two kits...we have two carburators in our bikes.

No..won;t hurt the bike .. but not the best way to go..listen to sound bites on utube get used on ebay or cl..

I have same bike with long shot vance and hines pipes. My bike is 2 years older and has carburetor. I get 35 mpg city and about 40mpg hwy.

Previous owner probably had the bike rejetted for the pipes and is over rich. Is your friend's bike stock?

Your bike is running lean (too much air and not enough fuel). What, if any, modifications have you done to the bike? If you changed the exhaust out for louder pipes, you need to adjust the f/a (fuel/air) mixture in the carburetor to compensate for more air going through the bike. Let me know here if you have made any type of mods to the bike.

make sure bike has high performance air filter to coincide with the jetting,very important

HI if this is a bike with carbs then I would highly suggest rejetting them with the after market pipes, if it has injectors then I would recomend checking to see if a power commander is availible for the bike so that you can tune the fuel curve, it will help with the performance as well as your fuel problem

I replied...Then he went on to tell me I have to get the bike rejetted...On cars you only rejet carberators...How do I rejet/configure my bike if I decide to get exhaust and intake? on a fuel injected bike you get a fuel mapper (kinda like putting a chip in a car) cobra makes a decent one that's reasonably priced. it changes the parameters in your ecu to accomodate the pipes and intake,

just make sure you rejet the carb all bikes come from the factory on the lean side to meet epa standards etc. if you dont rejet you'll actually lose some power and have nasty backfires as well take the time to put a jet kit in i personally recommend dynojet easy to install and comes with suggestions for your application