Carb promlem

Mark Mitchell · #1 PostAuthor: **Mark Mitchell** » Wed Jul 15, 2009 6:16 pm

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.

tlc · #2 PostAuthor: **tlc** » Wed Jul 15, 2009 6:23 pm

Are the bowl gaskets and screws okay ?

Mark Mitchell · #3 PostAuthor: **Mark Mitchell** » Wed Jul 15, 2009 6:31 pm

bowl gaskets and screw all renewed. The fuel is coming out of the overflow pipe.

Cheers

Redbeard · #4 PostAuthor: **Redbeard** » Wed Jul 15, 2009 6:34 pm

I had same prob, rebuilt fuel tap with kit from zpower and no more leaks from overflow pipes.

MaineKZ · #5 PostAuthor: **MaineKZ** » Wed Jul 15, 2009 6:55 pm

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.

Pigford · #6 PostAuthor: **Pigford** » Wed Jul 15, 2009 7:08 pm

When on the side stand, the fuel can flow from the other carbs... # 2, 3 & 4 and overflow #1 :shock:

So best put summink under the s/stand to make bike 'nearly' level.... :wink:

tlc · #7 PostAuthor: **tlc** » Wed Jul 15, 2009 7:09 pm

Or use the centre stand Pig :roll:

Pigford · #8 PostAuthor: **Pigford** » Wed Jul 15, 2009 7:12 pm

tailiftchris wrote:Or use the centre stand Pig

........... :?:

...... centre stand... errrrm... :??

NO, sorry, run that one past me again :wink:

zeroed · #9 PostAuthor: **zeroed** » Wed Jul 15, 2009 7:15 pm

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.

Mark Mitchell · #10 PostAuthor: **Mark Mitchell** » Wed Jul 15, 2009 7:22 pm

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

prowlerz1 · #11 PostAuthor: **prowlerz1** » Wed Jul 15, 2009 8:39 pm

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

paulmceleney · #12 PostAuthor: **paulmceleney** » Wed Jul 15, 2009 9:03 pm

i had this problem on my z900 fixed it last night fuel tap was faulty

Mark Mitchell · #13 PostAuthor: **Mark Mitchell** » Thu Jul 16, 2009 5:08 pm

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.

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