what can cause over blueing?

[banshee#44]

i have pro circuit pipes and K&N pods with 27.5 pilots and 290 mains needle is in stock position. i went on about a 2 hr ride we ride preatty hard but i have never seen pipes get this blue it almost like a super deep purple in some spots, but my bike was running great. is it just pro circuit pipes or what cause my fmf's never did it this bad. i'll have to get you guys some pictures

[GNR101]

to lean or to hot maybe?

but its prob fine

do a plug chop to be safe?

 

my fmfs blued up real bad for about a foot and jetting was fine

 

then 1day my main got blocked and now my whole left pipe is blueish gold :/

but now im just drippling storys

[locogato11283]

ive never had a set of chrome pipes blue. ive has t5's, rockets and now shearers and none of them ever did it.

 

id say your jetting is probably ok or you would have blown it up already.

 

what is your fuel/oil ratio and what kind of oil?

[GrMeyer]

Its from heat. I had the same thing happen to my FMF pipes after riding in the heat of the day. Mine happened when I was up at the cinders in arizona on a hill climb. I am was running 32:1 oil mix. So now i ride only when its under 90deg time out side. and when there are long straight aways to keep air moving.

[alf44]

ive always understood its heat and running a little lean. My t5s are the same. Its common.

[jlevasseur]

They all blue after time, especially on the lower end of the header going into the cyclinder. Blueing can be caused by a lean motor but usually is just the metal reaction's to heat. Factory production chrome is cheap and does not hold up to heat at all. I believe the FMF's and the Pro circuits are gold nickle plated right, giving it a shiny chrome look but its not chrome. The best way to prevent blueing in my experience is having the pipes custom show chromed. That will hold up to the excessive exhaust gas temp (EGT's) being produced by any motor a lot better then production chrome. Banshee's run warm period. Your tunning is probably fine unless your plugs are white and your bike ran like crap and wat poping and cutting out. Its just the nature of the beast. I finally show chromed mine and havn't had any problems yet. Good luck man.

[stringbeanbowler]

i have pro circuit pipes and K&N pods with 27.5 pilots and 290 mains needle is in stock position. i went on about a 2 hr ride we ride preatty hard but i have never seen pipes get this blue it almost like a super deep purple in some spots, but my bike was running great. is it just pro circuit pipes or what cause my fmf's never did it this bad. i'll have to get you guys some pictures

 

I heard it's from excessive heat which is most likely from a lean setting or fuel ratio, or low on engine coolant. Definitely check your plugs and google the result to see pics of lean plugs and compare yours. Go full throttle on a warm engine in 3rd gear and hit the kill switch, come to a stop, and then check the plugs. That is the proper way to check if the main (important) jet is the correct size.

 

What oil to fuel ratio are you running? A lot of people think it's ok to run a higher fuel ratio and it creates a lean setting and causes more heat which will damage your motor. Stick to 24:1 and you will not starve your engine of much needed oil.

 

Water has better cooling properties than antifreeze. Antifreeze is designed not to let it freeze in cold weather. If you don't store it in below freezing temps, does any one know if you can just run water in the radiator? I live in Illinois, so I run antifreeze, but am very curious!

[alf44]

I heard it's from excessive heat which is most likely from a lean setting or fuel ratio, or low on engine coolant. Definitely check your plugs and google the result to see pics of lean plugs and compare yours. Go full throttle on a warm engine in 3rd gear and hit the kill switch, come to a stop, and then check the plugs. That is the proper way to check if the main (important) jet is the correct size.

 

What oil to fuel ratio are you running? A lot of people think it's ok to run a higher fuel ratio and it creates a lean setting and causes more heat which will damage your motor. Stick to 24:1 and you will not starve your engine of much needed oil.

 

Water has better cooling properties than antifreeze. Antifreeze is designed not to let it freeze in cold weather. If you don't store it in below freezing temps, does any one know if you can just run water in the radiator? I live in Illinois, so I run antifreeze, but am very curious!

24:1 WHAT! That's nuts. Way too rich. Yamaha recommends 32:1 for break in. 40:1 is more than enough and what almost guarantee 90percent of us run. I've ran 40:1 on every two stroke I have

Ever owned with no problems.and get yourself some engine ice for your radiator. Great stuff.

[stringbeanbowler]

24:1 WHAT! That's nuts. Way too rich. Yamaha recommends 32:1 for break in. 40:1 is more than enough and what almost guarantee 90percent of us run. I've ran 40:1 on every two stroke I have

Ever owned with no problems.and get yourself some engine ice for your radiator. Great stuff.

 

THE GUY I BOUGHT IT FROM (MY BUDDY) SAID THE YAMAHA MANUAL SAYS 24:1 AND HE RUNS IT 32:1. I PUT 24:1 WITH AMSOIL INTERCEPTOR AND IT RUNS GREAT. I THINK IT IS MOSTLY OPINION WHEN IT COMES TO THE RATIO, BUT HAS A LOT TO DO WITH THE JETTING, SETTINGS, ALTITUDE, AIR TEMPERATURE, AND MODIFICATIONS. THAT'S WHY THERE ARE SO MANY DIFFERENT ANSWERS TO THE QUESTION OF WHAT RATIO TO RUN. IF IT RUNS AWESOME AT 24:1, WHY WOULD I RUN IT AT 32:1 AND STARVE THE ENGINE OF OIL?

[SubarusAreMyThing]

THE GUY I BOUGHT IT FROM (MY BUDDY) SAID THE YAMAHA MANUAL SAYS 24:1 AND HE RUNS IT 32:1. I PUT 24:1 WITH AMSOIL INTERCEPTOR AND IT RUNS GREAT. I THINK IT IS MOSTLY OPINION WHEN IT COMES TO THE RATIO, BUT HAS A LOT TO DO WITH THE JETTING, SETTINGS, ALTITUDE, AIR TEMPERATURE, AND MODIFICATIONS. THAT'S WHY THERE ARE SO MANY DIFFERENT ANSWERS TO THE QUESTION OF WHAT RATIO TO RUN. IF IT RUNS AWESOME AT 24:1, WHY WOULD I RUN IT AT 32:1 AND STARVE THE ENGINE OF OIL?

 

 

yamaha recommends 32:1.

 

and 40:1 is a long ways of starving it from oil..

 

and seriously loose the caps.

[alf44]

Yoyr friend is wrong. If u think it runs great at 24:1 32:1 will run awesome and 40:1 will run freakin crazy. There's people that run there stuff at 50:1 even 60:1 all day long bud. Trust us on this one.