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General Category >> Rubber Side Down! >> Black crud on carbeurator plug
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Message started by Black Thumper on 09/26/08 at 20:41:23

Title: Black crud on carbeurator plug
Post by Black Thumper on 09/26/08 at 20:41:23

Hi I'm a new rider, just bought a '95 ls650 with 4200 miles on it last week and am learning to ride. I was having lots of afterburn, was running hot, and it was really sluggish at the low end of second gear. From reading the forums I figured this was from the fuel mixture. Someone had thoughtfully already pulled the plug over that screw so I was able to open it up a bit so it'll idle smoothing with the choke closed all the was and can rev it up without it backfiring at all. I'll take it out for a ride tomorrow to see if it's still sluggish and trying to over heat.

But anyway, while I was adjusting the fuel mixture I noticed the plug just below that screw is encrusted with some kind of black crud; is this a sign of anything I should be worried about?
Everything else looked clean aside from some tarnish and bluing on the bend in the exhaust pipe which I assume is from the previous owner running it hot for the few thousand miles he put on it.

Title: Re: Black crud on carbeurator plug
Post by verslagen1 on 09/26/08 at 21:25:36

I beleave that's the butterfly valve pivot point.

I'd clean it up only cause crud in there may affect the operation of the valve.

Title: Re: Black crud on carbeurator plug
Post by Black Thumper on 09/26/08 at 21:42:50

Sounds good, I'll break out the toothbrush.

Title: Re: Black crud on carbeurator plug
Post by EssForty on 09/27/08 at 02:15:12

I think it shows great respect for the bike when you brush your teeth before working on it. Sometimes you have to get close to the breather tubes and believe me the bike appreciates the difference. ;D

Title: Re: Black crud on carbeurator plug
Post by Tincanman on 09/27/08 at 02:41:16

I use Berrymans B12 this will knock the crap outa any thing in there.

http://www.berrymanproducts.com/

Title: Re: Black crud on carbeurator plug
Post by Moofed on 09/27/08 at 06:19:44

Indeed, and likes to eat rubber and plastic parts in the process. So be careful. ;)

Title: Re: Black crud on carbeurator plug
Post by Savage_Amusement on 10/03/08 at 06:54:48

That would be because it has M.E.K in it. That is some nasty stuff. But it does work really well and it is tons cheaper than Seafoam.