VULCAN COOLANT LEAK KNOWLEDGE BASE - Kawasaki Motorcycle Forums
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post #1 of 50 (permalink) Old 02-16-2011, 11:21 AM Thread Starter
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Exclamation VULCAN COOLANT LEAK KNOWLEDGE BASE

This thread was created to consolidate and share information on this seemingly common issue. Please feel free to add any pertinant information, or pictures and schematics that may help other Vulcan riders find and repair these coolant leaks.

It seems apparant that many Vulcan cruisers have issues with small coolant leaks. Both of my previous Vulcans (Mean Streak 1600 and vulcan 2000) had this problem.

In my case, and as it seems in the majority of other cases noted here, the coolant leak is coming from loose coolant hose clamps. Again, from my experiance and the information gathered from others, the loose hose clamps are the smaller ones (around 3/4" diameter or slighlty larger) and are attached to coolant hoses that lead to or from the cylinders.

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post #2 of 50 (permalink) Old 02-16-2011, 11:24 AM Thread Starter
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

The areas circled in red note the location of the loose hose clamps on my old Vulcan 2000, as well as my old Mean Streak 1600. I had to physically remove the tank and upper frame section on the V2K to access the clamps. I had to remove the rear tank bolt and prop it up to access the clamps on the Mean Streak.
I tightened the clamps and all signs of drips and/or leaks went away.







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post #3 of 50 (permalink) Old 02-17-2011, 10:13 PM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

Are these the ones on the 1500? Are you talking about the clamps on the cylinders themselves or other clamps leading to the cylinder.

Here's how they look on my 1500.



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post #4 of 50 (permalink) Old 02-18-2011, 09:20 AM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

Yeah, those are the ones. Trike mentions specifically his Mean Streak and V2K but I had the same weepers on an '04 1500 Classic.

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post #5 of 50 (permalink) Old 02-18-2011, 09:57 AM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

So- just making sure before I put the tank back on-

If I tighten those two hose clamps and the problem persists, I have bigger problems.
I was hoping to see a lot more weeping from it- but it just seems dry.

Before I put the tank on are there any other hose clamps for the coolant I should tighten, or is that it?

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post #6 of 50 (permalink) Old 02-18-2011, 10:29 AM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

Ooh, it's been a while. Lessee, clamps between the cylinders, front of the rear and rear of the front were the weepers. Couldn't really see a leak just smell it. Took some talcum powder to find the traces of coolant. Clamps on the carb (n/a if you're FI I think). And just look around down in there, if there's a hose clamp then tighten it up.

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post #7 of 50 (permalink) Old 02-18-2011, 10:49 AM Thread Starter
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

I systematically went around and checked all the coolant hose clamps on the bike(s). The majority of the smaller diameter ones seemed loose and I tightened them. The larger diameter clamps (to/from radiator) seemed ok, though I checked them anyways.

So you want to buy a sportbike as your first bike and have questions?
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post #8 of 50 (permalink) Old 02-28-2011, 09:52 AM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

I had a problem with the pressure cap. Got it in cocked once and had to replace it. It would not re-seat after that.

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post #9 of 50 (permalink) Old 03-09-2011, 08:44 AM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

Had the same trouble with my '05 Nomad. I used a blacklight/coolant dye and most of the clamp areas lit up. I tightened the clamps on my V2K at 5000 miles and all is ok. Seems like a factory defect situation.

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post #10 of 50 (permalink) Old 03-27-2011, 12:08 PM
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Re: VULCAN COOLANT LEAK KNOWLEDGE BASE

This is something I just have to do. I've been smelling rad fluid for a couple of years now, yet I see no evidence of any leaks anywhere. I've never removed the gas tank before, which is why I haven't tightened all the hose clamps underneath the tank.....yah, I know, I'm a big chicken. However, if someone could send me a link, with visual step by step explanation on how to remove the gas tank I just might give it a try once it warms up here. I'm tired of getting that smell, and something must be done. I keep checking my rad overflow bottle, which at times is a tad low, but hardly worth mentioning.
Great thread, and I look forward to reading more about this Kaw problem. BTW way, I ride a 2003 Vuclan 1500 Carbed.

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