02-09-2014, 03:25 AM
(02-09-2014, 03:09 AM)road dog_imp Wrote:(02-09-2014, 01:24 AM)Headbanger02_imp Wrote: How many miles did it take to get those pipes that color, curious....have they been cleaned at all......coming from somebody who only has about 20 miles on his own bike so far.....come on spring, please....
To attempt an answer to your question... the discoloration is just a normal characteristic of single wall exhaust pipes on an air-cooled, internal combustion engine. It really only means exhaust temps have reached "Holy $#%* that's hot!" at least a time or two. Guys that like to go to the garage and start their bike every morning then go back inside to get geared up and whatnot, usually end up a good bit of discoloration. I've also noticed that dealer demo bikes can tend to have a lot. Just let your motor sit idle for 20 or 30 mins on a hot summer day if you'd like to get a good jump on the whole process... but please don't.
I rode BMW's for eons. Except for a few (bad) late model bikes, they were all from the 60's and 70's. I NEVER let it sit still and run for long. BMW's run cooler than most air-cooled bikes and the pipes always turned blue. We never worried about it.