
Yamazuki
Moderators: oldjapanesebikes, H2RICK, Suzsmokeyallan
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Yamazuki
Some of you may be aware that I purchased a project bike from Ringding a while ago. That project has been a work in progress now for a while. Essentially it is a 1975 GT750 motor that has been transplanted into a 1994 Yamaha FZR1000 chassis. I am in the process of uploading pictures to PhotoBucket and will start to post proggres here. Here is the initial concept drawing for the body design.


Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Re: Yamazuki
Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
-
- AMA Superbike
- Posts: 1769
- Joined: Tue Oct 14, 2008 6:47 pm
- Location: Blythewood, SC, USA
Re: Yamazuki
Looks good!
Lane
Lane
If you stroke it more than twice; you're playing with it.
Too many bikes, too much time, ENOUGH SPACE, FINALLY! Never enough money.........
Too many bikes, too much time, ENOUGH SPACE, FINALLY! Never enough money.........
- Jimroid
- To the on ramp
- Posts: 309
- Joined: Sun Feb 21, 2016 8:32 pm
- Country: USA
- Suzuki 2-Strokes: GT500 T500 GT750
- Location: Pisgah Forest, N.C. USA
Re: Yamazuki
Nice project, looking good!
- desmocat
- On the main road
- Posts: 131
- Joined: Mon Oct 20, 2008 10:09 am
- Country: USA
- Suzuki 2-Strokes: T500, TS250, B105P, GS250T
- Location: Southfield, MI USA
- Contact:
Re: Yamazuki




Keep us informed on the progress, always like Frankenbike projects.
Ralph Spencer
Spencer Motoworks LLC
Southfield, MI USA
www.spencermotoworks.com
AHRMA #798
Spencer Motoworks LLC
Southfield, MI USA
www.spencermotoworks.com
AHRMA #798
-
- On the main road
- Posts: 100
- Joined: Mon Dec 21, 2015 11:17 am
- Country: United States
- Suzuki 2-Strokes: 74 GT750
- Location: NorCal
Re: Yamazuki
I like what you've done with the silencers on those Jemcos, what was involved?
- dyrberg123
- To the on ramp
- Posts: 218
- Joined: Sat Jan 11, 2014 12:41 am
- Country: Denmark
- Suzuki 2-Strokes: T350 GT750 T125 RG250 RD125lc RD350lc RD400
Re: Yamazuki
Hi Rassie,
Really nice work there, loved your last bike too.
Have you modified the jemco stingers/silencer dimensions or only shaved the outer tube away like when doing the dg pipe mod on yams?
Cheers
Really nice work there, loved your last bike too.
Have you modified the jemco stingers/silencer dimensions or only shaved the outer tube away like when doing the dg pipe mod on yams?
Cheers
If it's not broken - don't fix it. Why not?
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Re: Yamazuki
The Jemcos were ordered with the stingers, they make them like that. In this case the parts were ordered as pieces that were just tack welded. I then modified the individual sections to get the correct fit and routing.
Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Re: Yamazuki
So some progress has been made. A bit slow due to day job pressures but forward none the less. I started putting the rolling chassis together and have a roller again. I also painted the motor black. There are some issues I have to address. My octopus has a broken line that broke off right where it attaches to the center ring so does not look like much I can do to repair it. Ringding has a spare which he is checking out to see if it works OK. If it does I will be back in business. I have to install the Cometic head gasket and the new shiny head bolt kit. I cut and welded the divots in the chambers to make clearance for the shifter and brake. So far so good. Here are some pics.








Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
-
- On the main road
- Posts: 100
- Joined: Mon Dec 21, 2015 11:17 am
- Country: United States
- Suzuki 2-Strokes: 74 GT750
- Location: NorCal
Re: Yamazuki
in the 2nd photo, looking over the top of the triples, looks like you added fork extenders?
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Re: Yamazuki
No that is where the stock clipons mount up under the triple. But good point, these forks are quite long about 2" longer than say R1 or GSXR forks. I looked into installing an R1 front end, but the forks are too short.MikeD wrote:in the 2nd photo, looking over the top of the triples, looks like you added fork extenders?
Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Re: Yamazuki
Thought I will post some more pics tonight. The build is now in final assembly but I had it running before to test everything and then took it apart for finishing. So some of these pictures are from a few weeks/months ago.
In this picture you can see the cradle frame that holds the motor and also the way the chambers fit.

Here it is at the inspection station getting inspected so I could get the paperwork done. I trailer-ed it there and took it off to ride it into the testing facility. The rules here say you ride it in and out. It passed without any issues even though it had a leaky head gasket.

This one shows some details of the bodywork I made out of 18 gauge flat plate steel. The taillight is from a Suzuki SV650.

This one shows the fairing I made and the headlight is from a V-rod (please don't tell my friends
)

This last one is showing the dashboard with the Koso mini OLED display.

In this picture you can see the cradle frame that holds the motor and also the way the chambers fit.

Here it is at the inspection station getting inspected so I could get the paperwork done. I trailer-ed it there and took it off to ride it into the testing facility. The rules here say you ride it in and out. It passed without any issues even though it had a leaky head gasket.

This one shows some details of the bodywork I made out of 18 gauge flat plate steel. The taillight is from a Suzuki SV650.

This one shows the fairing I made and the headlight is from a V-rod (please don't tell my friends


This last one is showing the dashboard with the Koso mini OLED display.

Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
- Suzukidave
- Moto GP
- Posts: 3980
- Joined: Fri Oct 24, 2008 5:55 pm
- Country: US
- Suzuki 2-Strokes: GT750 x2 97 -1200 Bandit 86 GSXR1100
- Location: Lancaster Pa.
- Jimroid
- To the on ramp
- Posts: 309
- Joined: Sun Feb 21, 2016 8:32 pm
- Country: USA
- Suzuki 2-Strokes: GT500 T500 GT750
- Location: Pisgah Forest, N.C. USA
Re: Yamazuki
Awesome build, that bike will be a hoot!
- Rassie
- On the main road
- Posts: 106
- Joined: Mon Jun 25, 2012 7:42 pm
- Country: USA
- Suzuki 2-Strokes: 1973 - GT750
Re: Yamazuki
I installed a new Cometic gasket and the shiny head bolt kit. The motor is starting to look quite nice.


Rassie,
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project
2023 Kawasaki ZX4RR
2019 Yamaha Tracer 900
1972 Honda CB350 Cafe Racer
1980 Honda CX500 Cafe Racer project
1973 Suzuki GT750 Resto-mod project