Undercut Z1 transmission

TerryK
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07 Jul 2022 05:20 #869996 by TerryK

Undercut Z1 transmission was created by TerryK

I’m looking for an undercut trans for my Z1R drag bike. Who has the fastest turn around time on a new one, or does anyone have a spare new one to sell? Need it fast!

1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
33 smoothbores
stage 3 Web Cams
Head porting
Dyna S ignition
Lockhart oil cooler
Wiseco header

1980 Z1R drag bike
1200cc
38 Flatslides, .
500' cams
7" slick
Dyan 4000 SP ignition
etc

Ontario, Canada

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Injected
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07 Jul 2022 07:16 - 07 Jul 2022 07:17 #870001 by Injected

Replied by Injected on topic Undercut Z1 transmission

You need to post this in the Classifieds/Wanted section.

Call Mike Law at Raceworks Canada, Marion St, Dorchester ON.

He may have one in stock (he needs a core in exchange)

Last edit: 07 Jul 2022 07:17 by Injected.

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hardrockminer
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07 Jul 2022 14:19 #870020 by hardrockminer

Replied by hardrockminer on topic Undercut Z1 transmission

What do you mean when you say undercut? I have a close ratio tranny that I pulled from a Z1. It's in good shape.

I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.

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Scirocco
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Never change a running system

07 Jul 2022 14:55 - 07 Jul 2022 15:53 #870021 by Scirocco

Replied by Scirocco on topic Undercut Z1 transmission

wrote:
What do you mean when you say undercut? I have a close ratio tranny that I pulled from a Z1. It's in good shape.

The dogs on the gears get a 5 degree single side undercut to stay engage under hard acceleration (Drag race) or both sides for racing (acceleration and deceleration).

www.kawatriple.com/tips/undercut/undercut.htm

My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode

Last edit: 07 Jul 2022 15:53 by Scirocco.

The following user(s) said Thank You: Street Fighter LTD

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TerryK
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08 Jul 2022 01:55 #870039 by TerryK

Replied by TerryK on topic Undercut Z1 transmission

Thanks. Ill try him!

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Injected
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10 Jul 2022 12:00 #870146 by Injected

Replied by Injected on topic Undercut Z1 transmission

wrote:
Thanks. Ill try him!

You might have to call a few times to get him in.

I bought one off him 3 years ago and at that time he had 3 left in stock.

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blackozvet
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12 Jul 2022 02:51 #870226 by blackozvet

Replied by blackozvet on topic Undercut Z1 transmission

APE do the trans undercutting.

APE - Transmissions (aperaceparts.com)

1973 Z1 900 Kawasaki

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Mikaw
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12 Jul 2022 05:05 #870230 by Mikaw

Replied by Mikaw on topic Undercut Z1 transmission

Murdoch Racing

murdochracing.com/

1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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TerryK
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12 Jul 2022 07:07 #870235 by TerryK

Replied by TerryK on topic Undercut Z1 transmission

Thanks. Talked to Mike and have a fresh one on the way. Great dude and I have nothing but praise for the guy and the way he does business! Highly recommend!

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Injected
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14 Jul 2022 07:05 #870346 by Injected

Replied by Injected on topic Undercut Z1 transmission

wrote:
Thanks. Talked to Mike and have a fresh one on the way. Great dude and I have nothing but praise for the guy and the way he does business! Highly recommend!

Mike has been my go to guy on KZ motor work for over 25 years.
He does it all, cylinder head work, cranks, transmissions, boring. He also works on Yamaha/Suzuki as well as the newer water cooled Kawi motors.

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z1kzonly
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14 Jul 2022 12:49 #870354 by z1kzonly

Replied by z1kzonly on topic Undercut Z1 transmission

Paul Gast @ FBG on Grand Island, NY near Niagara Falls has and still does trannies in house, He's been doing them since day 1.
Excellent cylinder work also, His guys have worked with him for years!

Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!

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Undercut Z1 transmission

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