Would it be okay to run a open header on my 04 scrambler? Is it alright because there would be no back pressure?

 

I am sure someone has done it.

It wouldn't be wise because it is not spark arrested and would be VERY very loud.

Also with no restriction the bike might not run right, especially low end power.

I would think you would run the risk of leaning out and burning up the motor

 

What if i re jetted it and I wont it realy loud.

 

Then you will be one of THOSE PEOPLE responsible for public riding areas getting shut down.

That will gain you No Respect.

Please ride responsibility so the sport will continue to grow.

 

You know I was thinking you should be fine

Jet down 2 or 3 sizes (There will be less air for combustion due to the lack of back pressure holding it in)

Take the exhaust off and ride it like you stole it.[img]i/expressions/face-icon-small-wink.gif[/img]

 

Just for kicks when I put on my HPD exhaust on, I started it up without the muffler. It was VERY loud. Obnoixiously loud. And it wasnt evena good sounding loud. It had more of a pinging sound. Not only that, but throttle response SUCKED and the low end was GONE! I put the HPD muffler back on and was a happy man then[img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img] If you ere to run it without the muffler, you would run into a few problems
1. the jetting would be way off and lean out the motor
2. You could burn the exhaust valve
3. The pipe would no longer be supported by the muffler and could break off at the head
4. No spark arrestor
5. TOO FRICKEN LOUD!!!
6. Not protection that the muffler provided to keep water and other junk from going down the pipe and into your motor

 

There isn't any ridding areas neer me i have to go like 2 hours to ride some place. No places in northeast ohio!

 

You will have no hope of getting any because the citizens in your area would never vote it in, because of you and your loud bike.

 

Take a friend with you. When you burn your exhaust valve (and you will) at least you'll have someone to tow you back.

 

NOT A GOOD IDEA. You will burn up your valves and it will run like SH%$. If you want a good reasonably priced muffler get a White Bros from Rocky Mountain ATV $179 and it sounds great and gives more bottom end.