Undercut Z1 transmission

  • TerryK
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Undercut Z1 transmission

07 Jul 2022 05:20
#869996
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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Re: Undercut Z1 transmission

07 Jul 2022 07:16 - 07 Jul 2022 07:17
#870001
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)
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 07 Jul 2022 07:17 by Injected.

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  • hardrockminer
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Re: Undercut Z1 transmission

07 Jul 2022 14:19
#870020
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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Re: Undercut Z1 transmission

07 Jul 2022 14:55 - 07 Jul 2022 15:53
#870021
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.
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  • TerryK
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Re: Undercut Z1 transmission

08 Jul 2022 01:55
#870039
Thanks. Ill try him!
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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Re: Undercut Z1 transmission

10 Jul 2022 12:00
#870146
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.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike

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Re: Undercut Z1 transmission

12 Jul 2022 02:51
#870226
APE do the trans undercutting.

APE - Transmissions (aperaceparts.com)
1973 Z1 900 Kawasaki

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Re: Undercut Z1 transmission

12 Jul 2022 05:05
#870230
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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Re: Undercut Z1 transmission

12 Jul 2022 07:07
#870235
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! 
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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Re: Undercut Z1 transmission

14 Jul 2022 07:05
#870346
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.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike

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Re: Undercut Z1 transmission

14 Jul 2022 12:49
#870354
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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