Coolant hose opinions - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 14 (permalink) Old 02-12-2020, 01:10 PM Thread Starter
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Coolant hose opinions

The 05 I bought a few months back has turned out to be a really great bike. No hidden issues so far after about 1000 miles. Ive changed fork oil, motor oil, rear diff, clutch, and brake fluid. and am now wondering should I change the coolant hoses just to be safe from issues in the future. No leaking or coolant loss just wondering how long can i expect the stockers to last. Bike has 33k miles and was stored in a warehouse unridden for years by original owner. Anyone installed silicon hoses?
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post #2 of 14 (permalink) Old 02-12-2020, 01:30 PM
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15 year old hoses are suspect. However I have never seen a single mention of a hose blowing.

I dont think I would bother with the expense of silicone hoses. The OEs are fine.

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post #3 of 14 (permalink) Old 02-12-2020, 02:02 PM
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At 33K you should be ok... and the OEM hoses are very sturdy. I've not found any Silicon replacement hoses for the FJR.

However, I also have an '05 with 77K miles and I DID replace all my OEM hoses last summer. And why?

I was in there for a valve check anyway and I really just wanted to replace them all just because of age/miles, and I plan on keeping bike for a while etc...

All the original hoses still looked good and could've lasted many more miles so it was really just for peace of mind I guess.

One thing to note is that I spent between $150-$200 for all of the hoses and some were on backlog and took a few mos to arrive (partzilla.com).
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post #4 of 14 (permalink) Old 02-12-2020, 05:19 PM
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My '07 is only slightly younger but more experienced with 128,xxx miles. I inspect every year and every year I tell myself maybe next year. All the hoses on my bike are still original, still in very good shape.

If it makes you stress less, replace them.
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post #5 of 14 (permalink) Old 02-12-2020, 05:27 PM
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I would just check the hoses for cracks and make sure they are still soft and pliable. If all looks OK just change the coolant and leave hoses alone.
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post #6 of 14 (permalink) Old 02-12-2020, 05:34 PM
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Check them over just in case, but ride more......

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post #7 of 14 (permalink) Old 02-12-2020, 05:52 PM
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I have an 05 with just over 35k miles - just check them at service, bet they will be fine for years to come.

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post #8 of 14 (permalink) Old Yesterday, 01:02 PM Thread Starter
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Thanks guys, it was just a piece of mind deal for me. They look fine so Ill leave them alone.
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post #9 of 14 (permalink) Old Yesterday, 01:16 PM
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Hoses rot on the inside of the tube and they de-laminate. There is no inspection for that.

Once you get to a place where you question the integrity of the hoses, replace them. Because they hold up to 20psi, when they fail it is explosive. Not a small leak. Its usually a split that will dump large amounts of boiling coolant on your legs and feet, on the road and on your rear tire.

You do not want to be riding when a coolant hose goes.

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post #10 of 14 (permalink) Old Yesterday, 06:56 PM
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Quote:
Originally Posted by mobilemike View Post
Hoses rot on the inside of the tube and they de-laminate. There is no inspection for that.

Once you get to a place where you question the integrity of the hoses, replace them. Because they hold up to 20psi, when they fail it is explosive. Not a small leak. Its usually a split that will dump large amounts of boiling coolant on your legs and feet, on the road and on your rear tire.

You do not want to be riding when a coolant hose goes.
Pray tell the:

- how often do you replace yours?

- how do you decide when you've gotten "to a place"?

I give mine a little kneading to fell for anything abnormal. This has worked well for me for many yrs.

Russ
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