Hi, I’m Steve Matthes with this week’s Transworld Motocross how to presented by Bike Bandit. And this week, I’m gonna show you how to change your exhaust system. The first step in putting a new exhaust system on is, A, removing your old one. So that’s what I’m gonna do right now. What we gonna do is throw on a Yoshimura complete system, same one that Ryan Dungey is using right now, or close to it anyways, to win some AMA supercross. So you always want to start off with the back section first. Loosen the middle mount and then pull it off like so.
Now I’m gonna move to the header pipe. A good idea when you’re changing your exhaust system is to get a new OEM copper gasket for the junction in between the head and the pipe. If you’re experiencing some fire problems or some backfire issues when you’re riding, change that exhaust gasket. It’ll help out. Since this bike’s pretty new, this seal’s in pretty good shape but definitely on older bikes, you wanna take a look and you can see it’s actually will be crushed and there will be an indent in there. So just order a new one up.
So with the header already installed loosely, put the rear can and what you wanna do is just install the bolts. Just get the bolts started, don’t tighten anything yet. Make sure your alignment is all right. The yosh [SP] comes pretty handy to give you new bolts with the kit as well as spacers and everything you need. Okay, so the system’s mounted, everything’s loose. Now you can start tightening it up and you wanna start at the front, at the head pipe. Those are the first two bolts you wanna tighten.
When you tighten the front, you wanna put an equal amount of pressure on each nut. Don’t tighten one all the way and then go with the other. Sort of slowly clinch them down, making contact with that gasket and getting a good seal. For now with the front type, the mid pipe bolt type, the last bolt is at the back at the very end. Tighten that down and there you go, your system is ready to go.
The cool thing about the yosh, they include a spark arrestor that you can change by just using an Allen key in the end cap here, and they also include a wash plug for when you’re washing it. Always use a wash plug as water can damage the interior of the silencer. And that’s it for this week’s Bike Bandit how to.
You know what’s funny is all the guys have worked with me in the past, mechanics, team managers are really going to get good laughs out of this stuff. Hi, I’m Steve Matthes. You might remember me as [inaudible 00:03:33] mechanic, winning summer crosses and placing a lot [inaudible 00:03:38]. You might remember me as [inaudible 00:03:40] mechanic from factory Yamaha. Well, now I’m doing the Transworld tech tip. Anybody by, by round five, I should get it.