1991 vulcan 750 just got i have carb questions - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
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post #1 of 7 (permalink) Old 04-13-2010, 05:08 PM Thread Starter
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1991 vulcan 750 just got i have carb questions

i know the bike has been off the road since 2007 start's and idle's great even rev's good but you ride it and i think its starving for fuel won't let me go over 75 m.p.h letting seafoam sit overnight has stopped most backfireing any suggestions would be great thank's
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post #2 of 7 (permalink) Old 04-13-2010, 09:08 PM
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You probably need to give it some time with the seafoam in it, for starters. It may need the carbs pulled and cleaned in the long run, but give it some time with the seafoam and see what gives. On a bike that sat since 07 there is varnish built up in the carbs and maybe the diaphrams are sticking and such. Give it time, my friend. Read the seafoam article by clicking on the link in my sig about the mods. It might give you some hope!

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post #3 of 7 (permalink) Old 04-14-2010, 02:21 AM
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Seafoam rocks. I bought my 05 with 5000 miles on it...it just sat in the guy's garage....been feeding it seafoam by the bottle and riding it like its going out of style...it runs better the more I ride. Yours will too.

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post #4 of 7 (permalink) Old 04-16-2010, 10:39 AM
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Excercise. Put a few hundred miles on it. Use top grade gas fora few tanks and add a little seafoam as well. My 99 I just got a few weeks ago had sat in a carport for 4 years with only ~800 miles in that time. Seafoam and ride. works good, and it's a good excuse to be out on the road!

"hey hun, I gotta ride the bike for a bit, needs excercise." haha of course now that mines running good the wife comes along on cruises.

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post #5 of 7 (permalink) Old 04-19-2010, 02:55 PM Thread Starter
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the sea foam is working your right the more i ride and the more sea foam i use the better its getting i think i,m going to enjoy the wind and sun today and go for a ride
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post #6 of 7 (permalink) Old 04-19-2010, 05:59 PM
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Quote:
Originally Posted by nathan View Post
Excercise. Put a few hundred miles on it. Use top grade gas fora few tanks and add a little seafoam as well. My 99 I just got a few weeks ago had sat in a carport for 4 years with only ~800 miles in that time. Seafoam and ride. works good, and it's a good excuse to be out on the road!

"hey hun, I gotta ride the bike for a bit, needs excercise." haha of course now that mines running good the wife comes along on cruises.
nathan, if by top grade gas you mean an octane rating higher than 87, it is not needed. 87 octane fuel is what is recommended for the vn750 by the manufacturer. Some members here have reported poorer performance and fuel economy using the higher octane fuel. A tank full of fresh 87 octane gas and a few ounces of Seafoam in each tankful, for a few hundred or sometimes even a couple of thousand miles, may clean all the varnish and crud out. If you live somewhere you cannot obtain Seafoam, a local mechanic who owns and rides several bikes, suggests using some fuel injector cleaner in the tank for cleaning the carbs out instead of other fuel additives.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

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Last edited by OlHossCanada; 04-19-2010 at 06:02 PM.
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post #7 of 7 (permalink) Old 04-25-2010, 12:53 AM Thread Starter
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this is how i got my carbs finally cleaned out with out taking off or apart bio-diesel fuel the stuff that is home maid she chocked smoked then cleaned out and is running like new i used 6oz in a tank
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