FMF Exhaust Discolourd

[88blasterman]

My FMF Fatty expansion chamber exhaust has turned to a blue/purple color, any way to get it back to the shiny chrome look? B)

 

[Quadrider10]

polish and a lot of elbo greese? maybe?

 

[88blasterman]

Im pretty sure its from the heat, there is no rust just discolourd

 

[slickerthanyou]

I was told that is due to the additives in the gas. Some say if you use super 93+ octane it doesn't do that as bad. 93 is all i use and my power pros chrome is not discolored at all.

 

[brandoz28]

not a whole lot you can do about it!


personally i think it looks cool to have some heat discoloration.



make sure that the carb has been rejetted for the pipe! yo're going to be looking for between a 260-290 main jet in the carb

 

[88blasterman]

intresting... Well it is to late now

 

[piezzi]

Once it turns bluish, you have to re-chrome (or ceramic coat) to get rid of it.

 

[piezzi]

Just thinking more about this: boat headers won't turn blue if you run water through them, but will turn blue when run dry.....so it must be the heat turning them blue.

 

[piezzi]

intresting... Well it is to late now

Exactly.......my blue-ish header goes well with my blue plastics

 

[brandoz28]

it is the heat turning it blue, similar to how steel will turn blue when you weld on it.

 

[jaddict]

You can use this stuff called Blue Job. Thats what I use on my Harley, comes right out. Heres the link, I 'm sure u can get it cheeper on ebay or another sight just by searching around. Blue-Job Chrome Polish, No-Scratch, Removes blueing and rust

 

[jaddict]

Here is a viseo if u don't think it works. The stuff is like magic.

 

[Larry's Shee]

If it's turning blue it means it's getting hot, which means you are running lean. What does your plug look like? Consider doing a plug chop or bumping one jet size