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Carb promlem
Posted: Wed Jul 15, 2009 6:16 pm
Author: Mark Mitchell
Hi All, hoping someone might be able to help. Problem is number 3 carb on my Z1000A1 leaks a small amount of fuel when left standing overnight. i have had the carbs off cleaned and replaced seats and valves with new. Also adjusted float hieghts but no luck! The bike is left on the side stand and the fuel tap is off, although i have noticed that the tap weeps slightly in the off position. (Got new tap on order from Zpower) Bike seems to run well other than that. Had lots of advice and had a go at all thats been suggested. Don't know what else i can do. Is it just a case of getting the correct float hieght right ??
Would very much appriciate some help from anyone out there.
PS. Bike is fitted with standard Mikuni carbs.
Mark Bristol.
Posted: Wed Jul 15, 2009 6:23 pm
Author: tlc
Are the bowl gaskets and screws okay ?
Posted: Wed Jul 15, 2009 6:31 pm
Author: Mark Mitchell
bowl gaskets and screw all renewed. The fuel is coming out of the overflow pipe.
Cheers
Posted: Wed Jul 15, 2009 6:34 pm
Author: Redbeard
I had same prob, rebuilt fuel tap with kit from zpower and no more leaks from overflow pipes.
Posted: Wed Jul 15, 2009 6:55 pm
Author: MaineKZ
might be an idea to fit a couple of inline fuel filters in case muck is coming through from the tank.
The tiniest piece of crud will hold a float valve open.
Posted: Wed Jul 15, 2009 7:08 pm
Author: Pigford
When on the side stand, the fuel can flow from the other carbs... # 2, 3 & 4 and overflow #1
So best put summink under the s/stand to make bike 'nearly' level....
Posted: Wed Jul 15, 2009 7:09 pm
Author: tlc
Or use the centre stand Pig
Posted: Wed Jul 15, 2009 7:12 pm
Author: Pigford
tailiftchris wrote:Or use the centre stand Pig
...........
......
centre stand... errrrm...
NO, sorry, run that one past me again
Posted: Wed Jul 15, 2009 7:15 pm
Author: zeroed
my first z (a1) was always leaking fuel from no.1 carb(only had side stand), stripped them down but no difference. On one bike stopped problem fitting a bulky fuel filter, not ideal but worked.
Carb problem
Posted: Wed Jul 15, 2009 7:22 pm
Author: Mark Mitchell
Thanks all for your help,
I have fitted in-line filters and got block under the side stand.Got a new fuel tap on order i will try this and see what happens.
Mark
Posted: Wed Jul 15, 2009 8:39 pm
Author: prowlerz1
take off offending carb bowl and hold fill with fuel to top and see if it still leaks if it does then the overflow pipe will have a small crack in it
Posted: Wed Jul 15, 2009 9:03 pm
Author: paulmceleney
i had this problem on my z900 fixed it last night fuel tap was faulty
Carb problem
Posted: Thu Jul 16, 2009 5:08 pm
Author: Mark Mitchell
Thanks again for all the advise, I've just recived my new fuel tap & in -line filters which i'll fit tomorrow. Feeling confident that this will work after talking to you guys.
Regards to you all.