2003 YZ250 mods questions

[Macs69]

Been away from dirt bikes for a little while, but just got another. Bike is a completely stock 2003 YZ250 2-stroke.

Would like to put another pipe/silencer combo on it. What would you recommend as far as brand and model?

Also, would like to put a case-saver type thing on, in the event that the chain comes off. What brand, and where can I get one?

Also, would it be a good idea to replace the stock air cleaner?

Thanks in advance!

 

[robwbright]

As to the pipe, it depends on the type of power you're looking for. Each design has its own characteristics.

You could probably have a port/polish job and head work for less $$ than the pipe and silencer, and I'm pretty sure you'd see more power gain with the porting.

Try this link for info:

http://www.ericgorr.com

Of course, porting doesn't look cool . . . ;)

 

[adrenaline420]

The bikes stock exhaust system is really good, and you will not notice really anything with an aftermarket pipe, but if you choose a pipe, id go with the PC platinum/R304 silencer, you will notice more over rev but not enough to excite you. I deffinatly recommend a new air filter, I went with Twin Air. I put on frame guards to protect the frame from wearing, and a skid plate to protect the crankcase from harsh stones. If you want to go fast on it, get your suspension revalved, best performance increase I think.