Non-toxic Carb Cleaning - Honda Rebel Forum
 
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post #1 of 5 Old 05-22-2019, 01:30 PM Thread Starter
 
Join Date: Nov 2014
Location: NYC
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Non-toxic Carb Cleaning

Just a note on an experiment that seems to be OK. Feedback?

I cleaned my carb successfully recently by soaking in Washing Soda (sodium carbonate) and water, overnight. Oil and gunk was removed well. I also soaked some rusty components in phosphoric acid, now shiny.

Shook out water and blew channels out with standard carb can solvent spray, to be sure. But this is much less toxic intensive due to the prior soda soak.

The components were not negatively affected by the soda. No problem with seals. Soaking also made the overall job less messy without oil residues on the carb.

Honda Rebel 2005; Yamaha TX500 (prior)
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post #2 of 5 Old 05-22-2019, 01:38 PM
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Was the carb not performing well before the cleaning? If so, how is the bike running now?

Keepin' all the left over parts. Gonna use 'em to build another bike!

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
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post #3 of 5 Old 05-22-2019, 04:09 PM Thread Starter
 
Join Date: Nov 2014
Location: NYC
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The engine was not running smooth. I cleaned the carb and all seems fine now. There was some diesel carbon coating the inner surfaces if that might have been an issue. There was some fine corrosion on end of the long needle connected to the smaller vacuum membrane. Buffed that clean, about 3/4" of corrosion.

Honda Rebel 2005; Yamaha TX500 (prior)
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post #4 of 5 Old 05-22-2019, 04:49 PM Thread Starter
 
Join Date: Nov 2014
Location: NYC
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There is more to it though. The tank reserve valve is not working well, and that starved the carb of fuel, during reserve positions, at least, so maybe my carb cleaning efforts were pointless.

Yesterday, I blew out the tank valve, both normal and reserve positions, and will remove to inspect this in a few days. Not sure what do do with the tank, but I do have a filter inline.

Honda Rebel 2005; Yamaha TX500 (prior)
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post #5 of 5 Old 05-24-2019, 12:39 AM Thread Starter
 
Join Date: Nov 2014
Location: NYC
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And the final verdict. Tank valve reserve position doesn't work, seems broken, part lodged in tank. Reserve flow highly restricted. Had to drive at 15 mph to gas station. Non-OEM part from Amazon. Lasted 2 years.

Honda Rebel 2005; Yamaha TX500 (prior)
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