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Z1000A1 - What inlet rubbers for VM29mm Smoothbores?

Posted: Wed Apr 11, 2012 6:24 pm
Author: JohnC
Do I need the standard Z1000A1 rubbers like these:

http://www.ebay.co.uk/itm/kawasaki-z1-z ... 2ebcc7b8c7

Or something else :)

Posted: Wed Apr 11, 2012 6:38 pm
Author: KWACKERZ1
Nope you need z1000j rubbers as they are larger to take your carbs.

Posted: Wed Apr 11, 2012 7:08 pm
Author: JohnC
OK, excuse my stupidity, but how do you balance the Smoothbores (I haven't recieved them yet) as the Z1000J rubbers dont have any take-off like the A1 rubbers? The GSXR carbs I'm using have the take-off on the carbs.

Posted: Wed Apr 11, 2012 8:09 pm
Author: chrisNI
If the Mikunis are anything like the Keihins they don't respond well to gauge setting anyway even if you have take offs, from what I've found and subsequently been told. You balance them up on the bench using the wire adjustment method which I think is in the manual anyway.

Posted: Wed Apr 11, 2012 8:16 pm
Author: Taffus
You can also use This
I have used one of these on a kettle to balance the carbs, very accurate

Mikuni smoothbores

Posted: Wed Apr 11, 2012 8:20 pm
Author: FOZ1A
John, I run these on my bike and use the standard inlet rubbers. They are a perfect fit and balanced them using the vacum take offs. I have been using the for 3 yeas and never had a problem!

foz

Posted: Wed Apr 11, 2012 8:21 pm
Author: JohnC
chrisNI wrote:If the Mikunis are anything like the Keihins they don't respond well to gauge setting anyway even if you have take offs, from what I've found and subsequently been told. You balance them up on the bench using the wire adjustment method which I think is in the manual anyway.


Hi Chris, can you expand on this method or point me in the right direction?

John

Re: Mikuni smoothbores

Posted: Wed Apr 11, 2012 8:23 pm
Author: JohnC
FOZ1A wrote:John, I run these on my bike and use the standard inlet rubbers. They are a perfect fit and balanced them using the vacum take offs. I have been using the for 3 yeas and never had a problem!

foz


Ah! At last! Thanks FOZ, so I do need a set of the standard inlet rubbers!

Cheers :)

John

Posted: Wed Apr 11, 2012 8:24 pm
Author: JohnC
Taffus wrote:You can also use This
I have used one of these on a kettle to balance the carbs, very accurate


Looks interesting Taffus :)

Posted: Wed Apr 11, 2012 8:37 pm
Author: chrisNI
I got a set of Keihin CRs they fit the standard rubbers, but when i set them up the usual way on the guages it made the bike run like shit. I spoke to a club member who knows a lot about CRs he told me it was a waste of time on gauges, and using the method which I think is described in the factory Z manual for setting the slides using a fine wire to measure the slide heights all equally would work better. on the CRs it certainly did. Maybe the Mikunis will balance ok on the gauges if people have found them ok.

Posted: Wed Apr 11, 2012 8:44 pm
Author: z1bman
standard z1 carb rubbers should be perfectly ok as the carbs you are fitting are only 1mm oversize from the standard 28mm

Posted: Wed Apr 11, 2012 9:08 pm
Author: JohnC
Thanks for the help everyone, new standard A1 rubbers just bought on ebay for £40 :wink:

Posted: Wed Apr 11, 2012 9:09 pm
Author: JohnC
chrisNI wrote:I got a set of Keihin CRs they fit the standard rubbers, but when i set them up the usual way on the guages it made the bike run like shit. I spoke to a club member who knows a lot about CRs he told me it was a waste of time on gauges, and using the method which I think is described in the factory Z manual for setting the slides using a fine wire to measure the slide heights all equally would work better. on the CRs it certainly did. Maybe the Mikunis will balance ok on the gauges if people have found them ok.


Thanks Chris, this method will be my first port of call :)

Re: Mikuni smoothbores

Posted: Thu Apr 12, 2012 6:57 am
Author: Big Fluff
FOZ1A wrote:John, I run these on my bike and use the standard inlet rubbers. They are a perfect fit and balanced them using the vacum take offs. I have been using the for 3 yeas and never had a problem!

foz

Same here, I ran 29mm SM's with std inlet rubbers and no problems.

Posted: Thu Apr 12, 2012 8:12 am
Author: KWACKERZ1
:oops: :oops: I thought the 29's had the same body as the 33's which you use the 1000j rubbers for!

I suppose it makes sense they are smaller as they used them on the smaller bikes for racing !

John Apologizes for the confusion,

You learn something new everyday!!! Going back in my box now :(