air cooled twin question

15cherries · Mar 28, 2020

I am looking at purchasing a newer fuel injected t100 bonneville. I have looked at 5 or 6 so far all with similar mileage, approx. 5 to 10 thousand miles, some have lots of blueing on the head pipes, some have a little and 1 has no blueing at all? why the big difference, the one with no blueing at all has me puzzled.

Ratranger · Mar 28, 2020

Doing a quick search removing the airbox and getting tune can reduce or stop bluing of the pipes.

Or its possible they spent time polishing the blue off.

But the general consesus is that since it has single wall pipes the blue is normal.

fredintoon · Mar 28, 2020

15cherries said:
I am looking at purchasing a newer fuel injected t100 bonneville. I have looked at 5 or 6 so far all with similar mileage, approx. 5 to 10 thousand miles, some have lots of blueing on the head pipes, some have a little and 1 has no blueing at all? why the big difference, the one with no blueing at all has me puzzled.

Hi 15cherries,
I'm with Ratranger, the amount of blueing depends on how little BluBgone the dreaded POs' applied.
The zero blue bike is either a low mileage, lotsa polish combo, a very recent replacement or an aftermarket Stainless Steel exhaust system. Note that Stainless exhausts discolour brown, not blue

air cooled twin question

15cherries

XS650 Member

Ratranger

XS650 Junkie

fredintoon

Fred Hill, S'toon.

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