Hi Folks, New TT member here. I recently purchased a '98 YZ400 after a 7 year bikeless hiatus. Does anyone have some leads on spark arrestors that can be riveted in place of the old end cap on the stock silencer? There's a business in Kent, WA. that is developing one but will not be available for another month or so. I would like to take the bike out on a shakedown cruise at the local ORV park. I have been reading the TT posts for the past few months and it helped me narrow down what to purchase, thanks to all for your posts. Some bikes I've owned in the past were: XR500, XR200,YZ250, CR125, and RM400. Four strokes are my favorite. I'll try to keep the greasy side down!