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Old 09-21-2017, 12:47 AM   #1
wtfisafleek
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Join Date: Sep 2017
Location: Mesquite, TX
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WTH is this crap in my FITV?

I've been troubleshooting a hunting idle on my '91 and I just removed the FITV this evening. I set about disassembling it and it was horrific. Not only was the bowl at the bottom corroded like an old dirtbike's carb, the top was filled with what I can only guess is dirt and wax.

I'm wondering where all this crap came from. It makes me think I need to flsh my coolant system 4 or 5 times immediately.




Pretty much all of the gook is scraped away here. I wasn't kidding about the dirtbike thing. If you've worked on old carb'ed bikes at all, you may have seen a carb or two eaten away like this. I don't know if Honda's grade of aluminum for things like this is pretty poor, or it speaks more to how easily aluminum oxidizes. I wouldn't be surprised if the real culprit was the PO not using distilled water in the coolant and not flushing very often.
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Old 09-21-2017, 01:28 AM   #2
Darkcloud
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Calcium build up from water like a water faucet. Use car, with water run it a few days and drain.
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Old 09-21-2017, 10:22 AM   #3
wtfisafleek
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Lesson learned. I should've flushed it first and not judged the condition of the system by the quality of the coolant that came out.
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Old 09-21-2017, 05:45 PM   #4
fleetw00d
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Looks like someone used a can of stop leak and then fresh coolant if the stuff you drained looked good.
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