Tank Vent Tube? - Kawasaki KLR 650 Forum
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post #1 of 10 Old 04-09-2015, 02:48 PM Thread Starter
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Tank Vent Tube?

So, I've been spending the recent nice weather going over my recently acquired '08, just checking, adjusting and lubing. So far so good, but on taking the tank off I noticed that there's a nipple (can I say that?) on the lower rear (or that?) of the tank that appears to be missing its hose. Guessing its for a tank vent, or is it superfluous? Could anyone give me an idea of where such a hose might be routed? This bike has 5,500 miles on it and was always dealer serviced, so apparently it's been missing since new. Any help appreciated
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post #2 of 10 Old 04-09-2015, 03:23 PM
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Liftrat -

This is going to get awkward. How many nipples do you have?

On your tank...

There are California models with two nipples and hoses that go from them to the evap system. There are 49 state models that have only one nipple for the tank vent.

I don't know if that nipple is supposed to have a line on it or not. Gomotor will know.

Tom

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post #3 of 10 Old 04-09-2015, 03:46 PM Thread Starter
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Tom, awkward is my comfort zone. Unfortunately I appear to be non-bilaterally symmetrical as far as my nipples go, and only have the one. Tempted to put a hose on anyway, just to say I did; sort of the lowest grade of farkle.
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post #4 of 10 Old 04-09-2015, 04:33 PM
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Same story here, just got my 08 and is missing hose for the (one) nipple.
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post #5 of 10 Old 04-09-2015, 04:38 PM
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I think they figure that unless your response (at the urinal to the drunk in the next one) to "Boy, that water sure is cold!" is "Yeah, and it's deep, too!", then spilling a bit of fuel under the seat and onto the battery is no big deal.

Tom

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post #6 of 10 Old 04-09-2015, 07:25 PM
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The 49 state KLR has one hose connection at the back of the tank under the front of the seat. It for the tank vent. It comes from the factory with a ~4mm rubber tube that just drops down behind the engine to discharge and gas vapors or drops that may vent from the tank. The bike will work fine with out the rubber tube in place.

The California model has an extra tube related to the vapor recovery system.
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post #7 of 10 Old 04-10-2015, 11:11 AM Thread Starter
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Thank you for the info. I think I'll put a hose on it anyway, just in case I go belly-up on the trail, or something. Not like gasoline and batteries [U]don't[U]mix, but the combo just doesn't seem right.
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post #8 of 10 Old 04-10-2015, 03:37 PM
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Now that we are on the topic of tank nipples. I have an IMS 10.7 gallon tank on one of my KLRs. It has two connections at the rear of the tank. One for the gas cap vent and one for a vacuum line to the carburetor to power the internal fuel pump. It is a 49 states not California KLR.

I wonder it it were a California-10.7 gallon tank where would they put the third nipple?
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post #9 of 10 Old 04-10-2015, 08:55 PM
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I'll only suggest to Go Motor, that IMS doesn't give a 'hoot' about 'CARB' regulations, and only offers a 49 state version of their 10.7 gallon fuel tank!

Probably came with instructions to do 'this or that', which I know you would have done!

Tom probably had to follow those instructions, the first time! Then he did it his way!
IMS, thought it was "good enough Engineering"!

Time has proven otherwise!

pdwestman
Modify at "YOUR OWN RISK"!

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post #10 of 10 Old 04-10-2015, 09:04 PM
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Quote:
Originally Posted by pdwestman View Post
I'll only suggest to Go Motor, that IMS doesn't give a 'hoot' about 'CARB' regulations, and only offers a 49 state version of their 10.7 gallon fuel tank!

Probably came with instructions to do 'this or that', which I know you would have done!

Tom probably had to follow those instructions, the first time! Then he did it his way!
IMS, thought it was "good enough Engineering"!

Time has proven otherwise!
Agreed. I just thought Tom would enjoy thinking about a third nipple problem.
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