sorry common question..

I've looked all over and it seem there are many different varieties... I have 1980 kz100 z1 classic with normal carb that were put on by previous owner removing stock setup.. I have put a kerker 4 into 1 without baffle and emgos (now i know to go with K&n's) My question is what carbs are on the current set-up. Their Mikuni kogyo and have one fuel line entering between #2-3 carbs.. what size are they 24 or 26 ??????or something else...

I guess my big question is what ball park jets should be in it, for maximum life and performance... i will be taking off the carbs in the morn and will rejet if ne be.....

oh, i've done the coil power bypass thing (rewire) stock coils, #8 plug

thanks

Hello, Old School Kid, and Welcome to the site. We're glad you're here.


My Mikuni 29 smoothbores have the single line fuel feed as you described. But am uncertain about which other Mikuni models have it.

They are probably 26's. I forgot what jets I had in mine but WG will be able to fill you in when he gets a look at this post.

One fuel line? Can't we get just a bit more info? ID in mm on the engine side? ID mark on flange where carb inserts into bracket? I can't even begin to guess.

Thanks I was planning on pulling off this morn, but the weather in Georgia is good for a ride....

When i get back and check a few other things I will give them a pull.. I really want to ID these, I like to know what I have and how it all works.. Thanks..

Also noticed #3 carb boot to the motor has a small crack , going to try the wd-40 trick...(z1 enterprises, not listed for 1980 z1, guess i have us a different year, THATS WHY IM TRYING TO ID< SIZE?) might explain the ocational slow drop in rpms?

Thanks again to all.... so i gotta pull them out of the brackets??? thanks:)

Usually one good photograph from each side could be enough to identify the units.

I'll try Pictures , Thanks for the Idea... I would hate to make the boot worse while i'm waiting for a new set I need to ride... got the bug bad

Post edited by: Old School Kid, at: 2007/12/31 10:53

Old School Kid wrote:

... Also noticed #3 carb boot to the motor has a small crack , going to try the wd-40 trick...(z1 enterprises, not listed for 1980 z1, guess i have us a different year, THATS WHY IM TRYING TO ID< SIZE?)....

...z1 enterprises, not listed for 1980 z1, guess i have us a different year, THATS WHY IM TRYING TO ID< SIZE

Am guessing the LTD Classic fuel injected model did not use carb holders, beng reason Z1E doesn't list carb holders for the LTD Classic.

And also guessing the standard model 1980 KZ1000 carb holders would fit, and are likely those currently fitted.

Z1E shows the 1980 KZ1000 standard model carb holders as being temporarily out of stock.

Z1E carb holders

Concur with your wanting to verify carb size and type to assure proper fitment of new carb holders. And when determined, believe the good folks at Z1E will know this immediately for your particular application.

Am hoping the carbs are Mikuni 29 smoothbores -- you know, the revered ones often worshipped in hushed tones. :lol:

Post edited by: Patton, at: 2007/12/31 11:54

Here are the pix, thanks for the help.... hope i get the pix on here...

Post edited by: Old School Kid, at: 2007/12/31 16:47

2nd pic... thanks again

Post edited by: Old School Kid, at: 2007/12/31 16:49

did they change the head or did they block off the injection port some how?

School Teacher wrote:

did they change the head or did they block off the injection port some how?

Am out of my league here, but will suggest that the Z1 Classic fuel injection cylinder head incorporates ports for the injectors to fit (ports not found on a standard head), which ports are located above the larger openings for the "carb holders" (which are called "throttle holders" on the oem Z1 Classic fuel injection.

Can't tell from the pics, but perhaps any manner of block-off should be evident. Seems logical, but I don't know whether the original Z1 Classic head may be readily fitted with carbs by instaling standard carb holders and blocking the injector ports. Other members here will know for sure.

Here for reference is a diagram of the injector head.