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Author Topic: Engine exhaust colour question...  (Read 2729 times)

Offline excopper

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Engine exhaust colour question...
« on: June 15, 2012, 01:26:48 AM »
hey guys, use to be that if exhaust was white inside engine running great, if black running rich, that still apply with unleaded fuel, inside my exhaust very black :wht11
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Offline Brock

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Re: Engine exhaust colour question...
« Reply #1 on: June 15, 2012, 08:22:38 AM »
These days with unleaded fuel, (and all the crap additives that are needed now) all exhausts are black. The white residue was lead oxide I believe.
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Brock
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Offline Aj1300

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Re: Engine exhaust colour question...
« Reply #2 on: June 15, 2012, 06:11:38 PM »
Have to agree with you Brock, with the additives they put in the fuel you can't read the colour of your exhausts like you use too. :thumb :blk13
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saaz

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Re: Engine exhaust colour question...
« Reply #3 on: June 15, 2012, 08:38:58 PM »
Yes, the lead in the fuel gave the white colour.  Its a pity 2 strokes have died a bit, as they would have loved unleded fuel.
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