'98; WAS a good scoot; need advice - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
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post #1 of 3 (permalink) Old 04-05-2010, 12:22 AM Thread Starter
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Thumbs down '98; WAS a good scoot; need advice

Las Vegas; late Oct., knocked unconscious; no remembrance; woke up in hospital; scoot towed; WAS laid down; hasn't run since; WON'T EVEN COUGH.

Ignition sparks at plugs/compression/ignition lights/starter/battery: A.O.K.O.K. / spark plugs dry, even after cranking.

Guess fuel blockage; from being laid down.

Could BOTH in-line fuel filters I installed ~2 years ago when removed carbs, be plugged?

Don't think so. But dunno what else could cause absolutely no engine firing response.

Ideas please.

Last edited by xbert; 04-05-2010 at 12:37 AM. Reason: make it more clear
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post #2 of 3 (permalink) Old 04-05-2010, 12:42 AM
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Quote:
Originally Posted by xbert View Post
Las Vegas; late Oct., knocked unconscious; no remembrance; woke up in hospital; scoot towed; WAS laid down; hasn't run since; WON'T EVEN COUGH.

Ignition sparks at plugs/compression/ignition lights/starter/battery: A.O.K.O.K. / spark plugs dry, even after cranking.

Guess fuel blockage; from being laid down.

Could BOTH in-line fuel filters I installed ~2 years ago when removed carbs, be plugged?

Don't think so. But dunno what else could cause absolutely no engine firing response.

Ideas please.
Did you hookup the vacuum line from the petcock to the left carb that you said was not connected? If not you will not get any fuel to the carbs, if you did remove the carb vent tube from behind the right air filter, open carb drains and blow through the vent hose to clear.


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Last edited by lance328; 04-05-2010 at 12:59 AM.
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post #3 of 3 (permalink) Old 04-05-2010, 12:49 AM
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Ideas? Ideas about what? Sorry dude, but I didn't understand a word you said. But I'll take a guess. You crashed your bike? Sometime later, bike won't start, but has spark and compression? Plugs are dry, after trying to start?

If that is it, here is what to do. Put the bike on the centerstand. Put gas in the tank. disconnect fuel lines on carb side of filters. Make sure vacuum line to petcock is connected to fitting on front carb left side. Turn bike over with starter. If gas comes out of fuel lines, petcock and filters are ok. That means gas is getting to the carbs. Put the fuel lines back Check the carb vent hose, and make sure that is not obstructed or kinked. Now loosen the drain screws on the bottom of the carbs. If gas comes out, there is gas IN the carb float bowls. If no gas comes out, the float bowls are empty. Either way the problem is inside the carbs. If the float bowls are empty, the floats could be stuck. With the drain screws still open, bang on the float bowls with a screwdriver handle, and try the starter again. If gas now comes out through the carb drains, close them, and try to start it. If still nothing comes out, you will have to remove and disassemble the carbs to find out what the problem is. Jerry.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
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