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Yellow pipe .....under warenty? (Read 131 times)

Ramsforever Junior Member Offline SuzukiSavage.com Rocks! Posts: 68	Yellow pipe .....under warenty? 07/29/08 at 18:21:01 Could I make them change it? Just curios. Bought it new three months ago.(no miles) 2007 S40 (7000+ miles now) Is this the lean thing that causes it?
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Bleemus Full Member Offline SuzukiSavage.com Rocks! Posts: 106 Mt Pleasant, SC Gender:	Re: Yellow pipe .....under warenty? Reply #1 - 07/29/08 at 18:27:02 Lean is blue. Yellow is rich. Doubt you could ever get anyone to replace it under warranty.
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Ramsforever Junior Member Offline SuzukiSavage.com Rocks! Posts: 68	Re: Yellow pipe .....under warenty? Reply #2 - 07/29/08 at 18:37:01 Bleemus wrote on 07/29/08 at 18:27:02: Lean is blue. Yellow is rich. Doubt you could ever get anyone to replace it under warranty. Rich? I thought the backfiring was from lean? It backfires when I turn it off, and when I deaccelerate. I am confused now.
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T Mack 1 - FSO

Serious Thumper
Alliance Member

Offline

sold 2001 LS650 for
a 1986 XLH1100

Posts: 2919
Emmaus,Pa
Gender: male

Re: Yellow pipe .....under warenty?
Reply #3 - 07/29/08 at 19:46:53

Ok.... the color change in metals, chrome included, happens in stages. Heat causes the change. (remember those days in high school shop where the teacher made you temper a piece of metal????? and you thought you would never need it...... Grin

)

On chrome it starts out as a yellow, then goes to a gold, to a brown, to blue then finally a ugly gray.

There is a color chart somewhere on the net that tells you the time /temp for each stage. I vaguely remember it also had something about temper/hardness......

Engineers design things, Technicians make them work.
---
30% of being mechanical is confidence/30% is knowing to go slow when needed/30% is looking repeatedly at what you have/10% is dumb luck Wink

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rpgpgmr

Senior Member

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Posts: 270
Huntington, WV
Gender: male

Re: Yellow pipe .....under warenty?
Reply #4 - 07/30/08 at 10:28:55

7,000 miles in three months ... wow I'm impressed! I've got almost 10,000 in 14 months and I thought I was really doing something. Grin

Mine started to yellow in a few months too and then gold to a tarnish kind of brown (just like T Mack said). Yes it is from a too-lean condition, and no it's not covered under your warranty. The EPA is the reason for your yellow pipes.

I bought a new pipe and re-jetted so I haven't had any more discoloration. That's what I'd suggest for you to do.

2005 Suzuki Boulevard S40
2007 Yamaha V-Star Classic

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T Mack 1 - FSO Serious Thumper Alliance Member Offline sold 2001 LS650 for a 1986 XLH1100 Posts: 2919 Emmaus,Pa Gender:	Re: Yellow pipe .....under warenty? Reply #5 - 07/30/08 at 12:19:15 RE-Jet now!!!! Then get some of the Bluing cleaners (Blu-Away etc etc etc). Yellow chrome cleans up real nicely..... Gold & Brown a little less and blued pipe require elbow grease........
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