1975 KZ 900 , ZRX Swingarm, 89 GSXR front end

woot woot :evil: !

leon

Glad to hear you kept the KZ! Any thoughts on a direction with the carbs?

Cory

I like the flat sides there is a link on one of the previous comments.

However after nearly 10 years, I want to ride this mule for a year or so before I tinker with it again.
redlinecycle.com/VM34-36%20Conversion.html

These are what I want. I can afford them it could be easy to do. Going through a second iteration of re-jetting is making me wince. What would be ideal is to find another KZ owner with same engine mods, and copy that jetting to start with.

Mukuni VM 34

There is another rider who is on the ZRXOA forum named El'zRex and he has the same setup I believe. His name is Chris. I don't know if he is on this forum though. He is very knowledgable on the KZ platforms and has drag raced them for many years.

Cory

The Gixxer has a strange carb issue that I am working through.

I finished another project.. brakes and stuff.... on Yamaha SRX 600 for a buddy in Washington State.

My neighbor (he owns the Gixxer) has offered to help paint some striping on the KZ, we will be putting a "shelby stripe" across the top of the tank and tail section. Lokks much like the ducati Monster paint

The Bike is still sitting in the shop, and now that I am getting some graphics put on it, I will be picking up the bike, Dyno run or not.

Spring is in the air. This will be the 6th or 7th time I have said "I think it will be running this summer".

Well you know I approve of the Shelby stripe.

I sure hope you get your bike on the road this year.

YAAAAYYY !

Friday morning I go pick up the bike.

It's been a long time in the shop, kind of a restraining order situation as I was really going to burn it, shoot it, or drag it down the street. The court of opinion has granted me the patience to start again.

Steve has had it in his shop, (for a year) and never seems to mind it sitting there. He is a saint, or at a minimum the bikes guardian angel. If it was in the (my) garage, I would have taken my buddies Barrett 50 cal. to it by now.

The bike is a converstaion starter in Steves shop, so he does not mind.

I am ready to get going on it again, and the painter will be here Friday to pick up the bodywork and add stripes. Many thanks to my neighbor who we refer to as "S-2"... he likes to remain unknown. All the work I have been doing on his bike (the gixxer) has him feeling like he should help me out, so he had his painter call me and inform me that "S-2" is funding the graphic work on the KZ. Good friends are hard to come by.

I don't think it will be dyno'd... so I seriously need some suggestions at jetting size.

Main_____

Pilot_____

It is in running order now, just rich. I have a track day scheduled for the end of April. I hope to get it out there for the shakedown. Will post photo's of that.

Jetting !! I have not jetted a KZ since 1989. seems like it was a 122 main, but that is all I remember.

Stock cams, Kerker, 998 bore. Should be a black and white recipe out ther amongst all of you?



PLEASE PLEASE ??

MAIN__________

PILOT_________

just want to get in the ballpark. I will tune it on the track.

tk11b40 wrote: YAAAAYYY !

Friday morning I go pick up the bike.

It's been a long time in the shop, kind of a restraining order situation as I was really going to burn it, shoot it, or drag it down the street. The court of opinion has granted me the patience to start again.

Steve has had it in his shop, (for a year) and never seems to mind it sitting there. He is a saint, or at a minimum the bikes guardian angel. If it was in the (my) garage, I would have taken my buddies Barrett 50 cal. to it by now.

The bike is a converstaion starter in Steves shop, so he does not mind.

I am ready to get going on it again, and the painter will be here Friday to pick up the bodywork and add stripes. Many thanks to my neighbor who we refer to as "S-2"... he likes to remain unknown. All the work I have been doing on his bike (the gixxer) has him feeling like he should help me out, so he had his painter call me and inform me that "S-2" is funding the graphic work on the KZ. Good friends are hard to come by.

I don't think it will be dyno'd... so I seriously need some suggestions at jetting size.

Main_____

Pilot_____

It is in running order now, just rich. I have a track day scheduled for the end of April. I hope to get it out there for the shakedown. Will post photo's of that.

Jetting !! I have not jetted a KZ since 1989. seems like it was a 122 main, but that is all I remember.

Stock cams, Kerker, 998 bore. Should be a black and white recipe out ther amongst all of you?



PLEASE PLEASE ??

MAIN__________

PILOT_________

just want to get in the ballpark. I will tune it on the track.

one piece of the equation is missing,what carbs did you settle on?

leon

Leon...

They are the VM 29 Mikuni, with the 3 screw top. www.jetsrus.com/carburetor/carb_mikuni_V...oded_view_parts.html

Holding off on the new set until I get the bike on the road. Enough with overengineering this thing !! I want to RIDE !

Assuming all goes well and I am riding it this summer, I will buy the flatslides this winter...whats another few hundred dollars anyway LOL.

Stock jetting is:
Main: 120
Pilot: 17.5

I live at 4400 Ft. elevation. I am thinking 122 Main, pilot I am unsure of.

I got the bike back from Steve today. Steve took good care of it, I think he was kinda sad it was leaving. I assured him I had been rehabilitated and was ready for parental responsibiity again.

I wanted to ride it down the street before the painter got here to take the bodywork away for stripes.

Battery dead... The KZ has cheated me again!! Bike has been sitting with a dry tank for about a year now, so it had some storage "blues".

Then Gary the painter arrived, so there was no time to charge the battery, we started laying tape across the bike to get a visual idea of what sort of stripe to put on and what color. It will be a shelby stripe, same color as the swingarm, running just off cenerline from fender, across the tank and onto the tail section.

I keep a binder full of all the reference stuff, the binder was at the shop with the bike; kind of a history book in case Steve had trouble figuring out something. It's like looking at baby photos... ahhh so cute . So tonight I am looking at the baby album...


Those of you who may be starting a project...keeep a binder with everything in it. The information comes in so handy EIGHT years into the build... wait it's 2013, so its now more like 9 or ten.. man time flies when you move 800 miles, or go to beautiful Baghdad for a while.

There are photos in the binder of the bike the day before I tore it down, you know the film kind..HA HAAA 2003 I did not have a digital camera, but a real nice 35mm. Ran across this photo which I think will give you an idea of how much the bike has changed.

I took a photo of the photo with my Phone camrea.

i always start fat then lean up from there.

so i wold prolly start out with 20 pilots

and the 120 mains and see how it acted and start going from there.

sorry to be of no more help than that.

leon

Good Advice Leon,

I recall my last KZ (Eddie Lawson replica) I am thinking it was 125 mains and 20 pilots. Problem is that bike had smoothbores 33mm, these are 29's, anyway I will start from there, and pull the carbs off about a dozen times before it is right on.

Hate jetting !!