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Vented externally but what about carbon deposits now?

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  #21  
Old 04-27-2024, 10:59 AM
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As some have mentioned using water ( carefully .. be patient ) we used to do this ( never boiled the water though ) when doing an upper end on vehicles ... It worked quite well and made tear down clean up much easier ... Don't stall the engine !1
 
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Old 04-27-2024, 11:26 AM
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Originally Posted by Foothills Jim
I've done something similar many times with good result. Once the bike is warmed to operating temperature remove the air cleaner and while the bike is at a fast idle use a spray bottle to spray a mist into the carb (haven't done on a injected bike). When the motor starts to bog down either back off on your spraying or increase the engine speed. Looking into the plug hole before and after it's obvious the steam does clean some. Not sure if it is better or worse than chemical cleaners.
Mist of what product?
 
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Old 04-27-2024, 11:36 AM
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Originally Posted by Burbur2
Mist of what product?
Water ... Plain old water from the tap
 
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Old 04-27-2024, 10:11 PM
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Old 04-27-2024, 11:05 PM
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Originally Posted by Burbur2
Mist of what product?
Water
 
  #26  
Old 04-28-2024, 08:26 AM
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Originally Posted by GBHH
As a teenage lad, I had a buddy whose brother was very capable mechanic.
He had an engine analyzer (SUN?) and would get people's cars running at their peak.
I would sometimes see him get a V8 on the boil, then dribble water right down its throat.
Anybody remember this method of steam de-carbonizing?
We used to use transmission fluid, the red stuff for cars/trucks. Smoked like a sumbitch, but worked better than water for some reason.
 
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Old 04-28-2024, 09:07 AM
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In the early 70's we were using trans fluid or water to help de carbonize pistons.
It seemed to help with dieseling or run on (automotive) after cutting the engine off.

The hotspots from carbon seemed to cause the motor to try and keep running and many times knocking.
We got to where we were doing this with a tune up for a couple of years are so just cause.

Never saw this on bike tho.

WP
 
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