Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: cnrcpla on February 12, 2012, 12:30:05 PM

Title: Clutch plates
Post by: cnrcpla on February 12, 2012, 12:30:05 PM
Does anyone know what the acceptable width of the clutch plates should be on a yz250? More specifically '94. I can't find them in my manual, maybe I am looking in the wrong place  :-X
Title: Clutch plates
Post by: cnrcpla on February 13, 2012, 02:25:51 AM
Well how about this much easier and less specific question; I want to make my header pipe shine again, so should I take a few minuets with a wire brush mounted on a grinding wheel, or sand blast it? I think the sand blasting would take the shine WAY down, but I'm not sure. It's stainless steal if I am not mistaken, it is a dyno racing ports pipe if that helps. Any tips or advise would be great. I have already tried some Scotch Bright, and emery paper but it didn't really help much.
Title: Clutch plates
Post by: TMKIWI on February 13, 2012, 07:34:48 AM
Are you sure it is stainless not nickle plated.
If it is proper stainless a magnet wont stick.
Don't use a wire brush any way.
There are plenty of polishing pads you can get for stainless.

About the clutch plates, You should be able to find the specs on the web.
Title: Clutch plates
Post by: cnrcpla on February 13, 2012, 12:16:54 PM
I tried the web, I'm not sure if all the years are the same or different. And I tried a polishing pad meant for refridgerators and stuff. It didn't work much, any recomendations?
Title: Clutch plates
Post by: eprovenzano on February 14, 2012, 01:18:09 PM
I used a good old fashion SOS pad on my pipe.  It removed the stubborn spots and helped polish it a bit.  Its not perfect, but neither am I  :D
Title: Clutch plates
Post by: cnrcpla on February 14, 2012, 01:39:53 PM
I will have to pick up one of those. I mean, my pipe isn't one of those shiny mirror-like FMF ones, I just want a little shine to mine, not to see myself in it  :P
Title: Clutch plates
Post by: cnrcpla on February 15, 2012, 01:02:18 PM
While have you attention... What is the best way to clean powervalves? I have mine out and they have been a little neglected  :-X They have some build up on them, and I got a good part of it off, but what can I do to get the hard to reach crevasses and the stubborn stuff off?
Title: Clutch plates
Post by: Toadmeister00 on February 16, 2012, 04:03:58 AM
Quote from: cnrcpla on February 15, 2012, 09:02:18 PM
While have you attention... What is the best way to clean powervalves? I have mine out and they have been a little neglected  :-X They have some build up on them, and I got a good part of it off, but what can I do to get the hard to reach crevasses and the stubborn stuff off?

Spray-on oven cleaner works great on power valves. It will break up the carbon deposits.
Title: Clutch plates
Post by: cnrcpla on February 16, 2012, 12:13:32 PM
I used carb cleaner on it. And I took a tooth brushed sized wire brush to it as well. Came out nice. Also, a magnet stuck to my pipe, so it isn't stainless steel... Here a picture maybe you can tell me what it is?