Carb hose problem - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 5 (permalink) Old 03-26-2014, 07:50 PM Thread Starter
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Carb hose problem

I was looking over the bike today and found that one of the hoses on the carb had a hole in it. It had been resting against the engine and melted a small hole. I have had problems with the bike running smoothly and this may be one of the issues. I have two questions. Is the hose in the correct spot? To me it does not seem correct. What type of hose should I use to replace it? The hole is where the electrical tape is in the attached pictures.



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post #2 of 5 (permalink) Old 03-26-2014, 08:15 PM
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Originally Posted by HowardLangston View Post
I was looking over the bike today and found that one of the hoses on the carb had a hole in it. It had been resting against the engine and melted a small hole. I have had problems with the bike running smoothly and this may be one of the issues. I have two questions. Is the hose in the correct spot? To me it does not seem correct. What type of hose should I use to replace it? The hole is where the electrical tape is in the attached pictures.



That appears to be your Vacuum Line for your Emissions on the right carb vacuum port.
Yeah, a vacuum leak will cause issues running well/smoothly.

Replace with Vacuum Line or remove Emissions junk and cap/block the carb vacuum port off.

hth


'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
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...have a vulcan good day!
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post #3 of 5 (permalink) Old 03-26-2014, 08:25 PM
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Also....your carb should have a 90 deg bend off of it...you come straight off...thats what is putting you fuel line too close to heat....I suggest you get a brass 90 deg CVK Hi-Flow fitting for both carbs....your bike will love you, and you will again love your bike....

http://www.johnscycleparts.com/store...&product_id=55

You can get em for less at any custom Harley shop....



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post #4 of 5 (permalink) Old 03-26-2014, 08:57 PM Thread Starter
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Thanks for the help guys. I am doing the ear shave next week when all the parts get in. Is there a certain brand/type of hose I should use to replace that one?
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post #5 of 5 (permalink) Old 03-26-2014, 09:07 PM
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Just regular vacuum hose, need it long enough to reach the valve in front of the battery. But since you're shaving, it's a perfect time to lose all those emissions hoses too, just need coasters or cap off the reed boxes.

That vacuum port gets capped off if you coaster/cap.

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