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General Category >> Rubber Side Down! >> Chalky exhaust valves
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Message started by Redryder652 on 07/14/16 at 17:18:35

Title: Chalky exhaust valves
Post by Redryder652 on 07/14/16 at 17:18:35

So I had to remove my exhaust the other day and I figured I take a look inside the exhaust port and noticed the valves were a tiny bit chalky, but not white. My plug looks good, and I'm at sea level with a Mac performance upswept pipe, original idle jet(47.5 I think), 152.5 main, and the white spacer mod. What could be causing this?

Title: Re: Chalky exhaust valves
Post by justin_o_guy2 on 07/14/16 at 17:33:25

Uhhhh, they gets frikkin Hawt? You are okay, snormal,, black is less common, seriously white has been seen. I'd be happy with what you are seeing. How's your header looking? What exhaust is on it? Any mods? Miles? Year model? Hat size? Do you have small hands?

Title: Re: Chalky exhaust valves
Post by Redryder652 on 07/14/16 at 17:40:48

203F393E23241525152D3F33784A0 wrote:

Bike is a 2006 s40, only mods I've done are the raptor petcock, white spacer, 152.5 jet, air fuel screw plug removed, stock intake, and a mac performance pipe, not open, but close to it. I cleaned the pipe with blue job and that was about 1000 miles ago, and the blueing hasn't come back. Also what does my hat have to do with it? And my hands? :-?

Title: Re: Chalky exhaust valves
Post by justin_o_guy2 on 07/14/16 at 18:25:48

Naah,he isn't dangerous.. a bit stalkerish sometimes,,, but don't worry. If you start thinking you're needing a restraining order, I will forward the P.M.s I have. But, really, a sweety here, a honeybunch there,, it's really pretty harmless.. I shouldn't have gotten so upset..
Sorry, Ray,
I hope you will unnertand and forgive me.

Title: Re: Chalky exhaust valves
Post by Dave on 07/14/16 at 18:27:23

White is a common color for the Savage valves. Valves used to be a nice golden brown color in the days of leaded fuel....but not anymore!

Title: Re: Chalky exhaust valves
Post by Kris01 on 07/14/16 at 19:41:33

I think the white color is because the engine runs so lean. Lean=hot. It's not dangerous and won't hurt anything. It could also be deposits from the fuel but this isn't common on the exhaust valve. You usually find fuel deposits on the intake valve because it runs cooler.

Title: Re: Chalky exhaust valves
Post by Ruttly on 07/17/16 at 09:52:46

Cool I've been Moderated!!!

Title: Re: Chalky exhaust valves
Post by Serowbot on 07/17/16 at 10:05:37

Mine has been snowy white for 25k miles...

Must be darn chilly in there... :-/