Hi there I'm Anthony from TX and I just got a 1996 kawasaki Vulcan 750 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 03-04-2019, 06:14 PM Thread Starter
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Hi there I'm Anthony from TX and I just got a 1996 kawasaki Vulcan 750

I new to the bike seen and I just got a 1996 kawasaki Vulcan 750 a couple days ago and keep in mind I'm no bike mechanic but was kinda hard to pass up the deal to finally get a bike. Here's the problem I heard it running over the phone but didn't know that he was using a coke bottle full of gas and spraying it in the card. Told me all I really needed to do was change spark plugs and oil because he already replaced the battery. Long story short I did everything he said and it won't start so I need help. Grandpa said said to replace fuel lines and vacuum lines and to clean up the carbs. And my cousin told me to replace the fuel pump but I have no clue where that is because this is my first time really doing anything to a bike so any help would be greatly appreciated
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post #2 of 8 (permalink) Old 03-04-2019, 08:05 PM
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Well... first off... unless something crazy happened... you shouldn't have a fuel pump. Should be a vacuum petcock. But yeah def pull and clean the carbs... rebuild will prolly be needed, depending on how long it sat with nothing done with it
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post #3 of 8 (permalink) Old 03-04-2019, 09:19 PM Thread Starter
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Well now I'm a little confused because I watched a lot of video on guys working on bikes and they all say that you should be able to hear the fuel pump kick on are cycle on or something like that and I hear nothing when I got to start the bike. Not saying I don't trust you but I'm definitely confused now. So question I've done the oil change and changed spark plugs, right so could the peacock be clugged because like I said the guy had it running off a coke bottle full of gas
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post #4 of 8 (permalink) Old 03-05-2019, 12:55 AM
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Not all bikes have fuel pumps, this one definitely does not. Sounds like the carbs need pulled out and cleaned. We know what we're talking about here.

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post #5 of 8 (permalink) Old 03-05-2019, 03:41 AM
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The petcock "could" be clogged. But. That's easily checked, by pulling a fuel line off of it and cranking it over a little. But first you're gonna want to pull those carbs and clean the crud out. Good money is sitting on them being gummed up by old gas.
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post #6 of 8 (permalink) Old 03-05-2019, 06:18 AM
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Welcome, Anthpotter.
Just a bit more information on the fuel lines, the engine pulls a vacuum at the petcock via a vacuum line when the pistons are moving, and that vacuum pulls open a valve inside the petcock that allows gravity to pull the fuel from the tank through the petcock to the float bowls of the carbs. On the petcock, the two side hoses are the fuel lines and the bottom is the vac line. You can disconnect the fuel lines and hook something as simple as an empty medical syringe to the vac line and pull the plunger back to simulate the motor running and activate the valve. Fuel should dump out of both sides. This is not likely to be necessary, since the old fuel is much more likely to have gummed up the carb jets than blocked up the petcock or fuel lines. Flushing the system from the top while the carbs are removed is probably a good idea but there's not going to be a clog.
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post #7 of 8 (permalink) Old 03-05-2019, 08:41 AM Thread Starter
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OK I'm for glad I found this site because yall know what your talking about. And I want to say thank you for the help so far definitely going to be pulling the carbs and cleaning them and replacing the peacock and the fuel filters and line to be safe. Once again thanks you guys
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post #8 of 8 (permalink) Old 03-05-2019, 08:48 AM
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Originally Posted by Anthpotter View Post
OK I'm for glad I found this site because yall know what your talking about. And I want to say thank you for the help so far definitely going to be pulling the carbs and cleaning them and replacing the peacock and the fuel filters and line to be safe. Once again thanks you guys
Take the time to find the user manual and service manual for your bike (they're on this site somewhere). It's been helpful for me when doing things like pulling the carbs. my first go-around with the carbs had me frustrated. Then i read the manual and found out that the carb boots have alignment marks and the manual outlines a method for removing/installing the carbs. (I tried to twist, when the manual says to pull up...so much easier).

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