Cleaning Radiator - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 8 (permalink) Old 08-08-2019, 07:22 AM Thread Starter
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Cleaning Radiator

Took a spin to Alaska last month and returned with my bike covered in tar from the many construction zones. After much elbow grease most of the bike is clean, but I do notice my fan kicking on sooner than normal. What can I use to clean tar from the radiator fins?
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post #2 of 8 (permalink) Old 08-08-2019, 07:41 AM
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I'm sure there will be many answers that are all the right answers. If it were me I would use mineral spirits.
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post #3 of 8 (permalink) Old 08-08-2019, 08:26 AM
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Tar is a kerosene based material, get a normal paint brush and cut it down to about 1/3 of its original length, the bristles, I mean, take the radiator out of the bike , stand it in a tray and start brushing, the Kero won't hurt the radiator, then when clean wash with detergent and water, have fun.
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post #4 of 8 (permalink) Old 08-08-2019, 09:19 AM
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Mineral spirits, kerosene, naptha... all slow-acting solvents that won't hurt the rad. Soak a rag and leave it laying on the fins for a while. That tar is stubborn, may even have to pick some of it out with a dental pick?
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post #5 of 8 (permalink) Old 08-08-2019, 03:54 PM
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Soy Response from ZEP. We use it on our pavers and tac trucks. Let is soak then wash off.
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post #6 of 8 (permalink) Old 08-08-2019, 04:45 PM Thread Starter
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Quote:
Originally Posted by RaYzerman View Post
Mineral spirits, kerosene, naptha... all slow-acting solvents that won't hurt the rad. Soak a rag and leave it laying on the fins for a while. That tar is stubborn, may even have to pick some of it out with a dental pick?


I did pick a bunch of chunks off by hand.
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post #7 of 8 (permalink) Old 08-08-2019, 04:46 PM Thread Starter
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Soy Response from ZEP. We use it on our pavers and tac trucks. Let is soak then wash off.


Where can I buy that?
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post #8 of 8 (permalink) Old 08-08-2019, 08:01 PM
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I have a wand that I purchased at Harbor Freight Tools that hooks to shop air and venturi lifts a solvent like mineral spirits, tolulene, or naptha.

You connect it to a compressor, drop the pick up hose into a container of solvent and blast away.

I am sure you could google ZEP
https://www.zep.com/productsearch/tar
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If its got teats or tires, your bound to have trouble with it...
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