Looking for a worn out Z1 aluminum R. sprocket

Hello, I need a bad aluminum rear drum brake sprocket. I cut diameter down just to make a 3/8" spacer on the rear hub for the one I'm using. Just makes it easier. Running a 3/8 offset up front. Thanks
Marty in Buffalo

I can offer you a 3/8 silver anodized alumium spacer for you rear sprocket hub. It´s a left over part of my 3,50/5,75 x18 Akront wire spoke wheel kit. If you want i can upload pics tomorrow, it´s to late (22:30) to dig in my parts man cave.

What are the hole and center diameters? I have a junk one from a box of stuff that came with my dad's Z1. It's aluminum and it looks like the stud diameter is 130mm? It's yours if you want it. I also measured the thickness, and it's 0.359" as opposed to 0.375".

Hello D'. Yes, the Z1-KZ900 rear measures: 130mm from bolt center to center
And the I.D. opening is: 3.862" / 98mm.
This is how I used this one, I also had to countersink the reg. sprocket. Tap the hub and used 7/16" flat heads. For clearance. A little crude. But I did this 15 yrs. ago. Let me know

We have a nylon 530(?) rear Z1 rear sprocket we'll never use. Mates to a Z1 sprocket carrier perfectly. Came to us in a parts lot. Looks new. Yours if you want it for cost of postage.

Good Ridin'
slmjim & Z1BEBE

A buddy of mine with a Z1 got talked into one of those nylon sprockets 40+ years ago, I think he ruined it with the first hole shot

Hi Jim, Sure, that would work great for what I need! Hope things are good. Great time to self quarantine in the Garage with motorcycles. I picked up this old KZ with a dragstrip engine on it! Built by Paul Gast @ FBG. Has nice Lester mags,! I am going to mount this Sun rim with 3/8" offset with a 5.5 M/T slick. Going to restore the Lesters. At least I can play with this bike while I decide what to do with it. Take Care! Stay in touch. Marty in Buffalo.

Interesting float bowls on the carbs. I have never seen anything like that before.

Rick H.

z1kzonly wrote: Hello D'. Yes, the Z1-KZ900 rear measures: 130mm from bolt center to center
And the I.D. opening is: 3.862" / 98mm.

Looks like that's what I have. 130mm stud, 98mm center. If you want it send me a PM.

Rick H. wrote: Interesting float bowls on the carbs. I have never seen anything like that before.

Rick H.

Common on the Lectron Racing carbs. "Lectron", an old snowmobile carburetor. These are what made Paul Gast's Business grow, besides his original 2 Stroke days. Paul fitted an adjustable Main Metering tube for large flow, wide open. And the rest was History. Then a few yrs. back one of Paul's employees, Kevin G. sort of got ahold of the original patent. And moved to Texas and runs the Lectron Business. I don't know personally? If there was any bad feelings between the two? 90% of drag bikes run Lectrons "TRONS"

If those bowls were good enough to race with I can only assume they would have been satisfactory for street use. Would have been a real boon for use on Mikuni's when checking and maintaining float level. At least there would be no questions about where your fuel level was.

Rick H.