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Old 09-11-2019, 09:16 AM   #12
Mr Gazza
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Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,806
This is odd.
The exhausts on my 900 can be quite smelly/fumey. Mrs Gazza complains of this if she is about when I come home after a run.
The exhausts blacken very quickly at the tail pipe, but not with a soft deposit, more a hard stain.
Strangely the plugs are clean and have virtually no deposits to speak of. I get near as dammit 70mpg, so not running rich, she has never used a drop of oil on any length of run in any weather. So I wouldn't read too much into the smelly exhausts.
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