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stroker
stroker HalfDork
12/23/11 12:29 p.m.

What year did Yamaha stop using steel frames (painted silver) and switch to real aluminum for the FZR series? Anyone know?

pilotbraden
pilotbraden Dork
12/23/11 1:46 p.m.

As far as I know the FZR 600 and 1000 always had steel frames. The FZR 400 was always aluminium. A 600 engine will fit in a 400 frame.

fasted58
fasted58 SuperDork
12/23/11 3:29 p.m.

I had an '88 FZR 1000, aluminum frame

vazbmw
vazbmw Reader
12/24/11 1:37 p.m.

FZRs always had aluminum frames. The FZ had the steel frames. Once the R came out it was aluminum

FZ: 1986-1989 FZR: 1989-

Rusnak_322
Rusnak_322 HalfDork
12/24/11 2:34 p.m.

I had two FZR600s and both had steel frames. I had a FZR400 with a Aluminum frame. Not sure what the 750s had.

stroker
stroker HalfDork
12/24/11 3:08 p.m.
Rusnak_322 wrote: I had two FZR600s and both had steel frames. I had a FZR400 with a Aluminum frame. Not sure what the 750s had.
vazbmw wrote: FZRs always had aluminum frames. The FZ had the steel frames. Once the R came out it was aluminum FZ: 1986-1989 FZR: 1989-

This is precisely why I ask the question...

vazbmw
vazbmw Reader
12/24/11 3:42 p.m.

That is interesting. Maybe it depended on the displacement. It has been so long ago it is hard to remember, but I had an FZ 600. Yamaha then came out with the FZR 600. One of its big selling points was a the delta box alum. frame and the ExUp exhaust system. Maybe, just a guess depending what year and displacement, Yamaha rebadged the FZ as an FZR before swapping out to alum. frames

Rusnak_322
Rusnak_322 HalfDork
12/25/11 7:25 a.m.

from Wiki - "The Yamaha FZR600 is a sports motorcycle produced by Yamaha between 1989 and 1999. It was the successor to the FZ600 and was replaced by the YZF-600R. It had a steel Deltabox frame and swingarm, similar in appearance to the alloy Deltabox frame introduced three years earlier on the 1WG FZR400"

vazbmw
vazbmw Reader
12/27/11 12:56 a.m.

I stand corrected. Here is more info about the big bore FZR: http://www.nydesmo.com/yamahaFZR1000.html As someone said earlier the 400 is was always aluminum. Everything else seems to have been steel.

Rusnak_322 wrote: from Wiki - "The Yamaha FZR600 is a sports motorcycle produced by Yamaha between 1989 and 1999. It was the successor to the FZ600 and was replaced by the YZF-600R. It had a steel Deltabox frame and swingarm, similar in appearance to the alloy Deltabox frame introduced three years earlier on the 1WG FZR400"
stroker
stroker HalfDork
12/28/11 2:30 p.m.

In reply to vazbmw:

Wish I could get definitive word on the 700/750 models.... I know the 750R version available at the same time as the FZ700 was aluminum.

4g63t
4g63t HalfDork
12/28/11 3:16 p.m.

1987 FZR750RT was definitely aluminum as mine was. All FZs were steel. All FZR except 600 were aluminum.

SlickDizzy
SlickDizzy SuperDork
12/28/11 10:13 p.m.
4g63t wrote: 1987 FZR750RT was definitely aluminum as mine was. All FZs were steel. All FZR except 600 were aluminum.

That sounds right to me. There was never an FZR700 made (well, these days there is now a completely different bike with that name), but there was an FZ700 (tariff-beater version of the FZ750). The FZR750 was a homologation special with lots of fancy racing kit like full aluminum frame, titanium con-rods, etc etc...couldn't keep up with the RC30 on the track though, so it was quietly dropped. I'd love to have one, they are the last example of Yamaha's flirtation with 5-valve heads.

4g63t
4g63t HalfDork
12/29/11 3:32 p.m.

I'd like to find my FZR750RT again #295 Way more rare than my ELR.

vazbmw
vazbmw Reader
1/1/12 11:21 a.m.

Part of my confusion was probably the fact that once I had an FZ600 I was only looking at the 750's and up.

4g63t wrote: 1987 FZR750RT was definitely aluminum as mine was. All FZs were steel. All FZR except 600 were aluminum.
stroker
stroker HalfDork
1/1/12 5:56 p.m.

On a whim I searched Fazers and found a buncha them cheap on CL. Gotta wonder, funky styling aside, if something like that might make a decent commuter. Wonder what the Suzuki version of that would be... A 750 Bandit with a first gen GSXR mill?

vazbmw
vazbmw Reader
1/1/12 8:24 p.m.

That 750 Bandit was pretty nice. Don't know about the Fazers though.

Curmudgeon
Curmudgeon SuperDork
1/1/12 10:01 p.m.
SlickDizzy wrote:
4g63t wrote: 1987 FZR750RT was definitely aluminum as mine was. All FZs were steel. All FZR except 600 were aluminum.
That sounds right to me. There was never an FZR700 made (well, these days there is now a completely different bike with that name), but there was an FZ700 (tariff-beater version of the FZ750). The FZR750 was a homologation special with lots of fancy racing kit like full aluminum frame, titanium con-rods, etc etc...couldn't keep up with the RC30 on the track though, so it was quietly dropped. I'd love to have one, they are the last example of Yamaha's flirtation with 5-valve heads.

The YZ and WR thumper motors are both 5 valve. Yamaha calls that head design the 'Genesis', IIRC.

SlickDizzy
SlickDizzy SuperDork
1/2/12 11:16 p.m.
Curmudgeon wrote:
SlickDizzy wrote:
4g63t wrote: 1987 FZR750RT was definitely aluminum as mine was. All FZs were steel. All FZR except 600 were aluminum.
That sounds right to me. There was never an FZR700 made (well, these days there is now a completely different bike with that name), but there was an FZ700 (tariff-beater version of the FZ750). The FZR750 was a homologation special with lots of fancy racing kit like full aluminum frame, titanium con-rods, etc etc...couldn't keep up with the RC30 on the track though, so it was quietly dropped. I'd love to have one, they are the last example of Yamaha's flirtation with 5-valve heads.
The YZ and WR thumper motors are both 5 valve. Yamaha calls that head design the 'Genesis', IIRC.

The "Genesis" is actually their term for the frame design that lays the engine down near-horizontal; the FZR600 is a Genesis bike even though it's a 4-valver. I didn't know the YZ & WR were 5-valve heads though, you learn something new every day!

vazbmw
vazbmw Reader
1/6/12 9:35 p.m.

Really I always thought Genesis was the 5-valve head: Genesis

Another Genesis link

Image of the head here

SlickDizzy wrote:
Curmudgeon wrote:
SlickDizzy wrote:
4g63t wrote: 1987 FZR750RT was definitely aluminum as mine was. All FZs were steel. All FZR except 600 were aluminum.
That sounds right to me. There was never an FZR700 made (well, these days there is now a completely different bike with that name), but there was an FZ700 (tariff-beater version of the FZ750). The FZR750 was a homologation special with lots of fancy racing kit like full aluminum frame, titanium con-rods, etc etc...couldn't keep up with the RC30 on the track though, so it was quietly dropped. I'd love to have one, they are the last example of Yamaha's flirtation with 5-valve heads.
The YZ and WR thumper motors are both 5 valve. Yamaha calls that head design the 'Genesis', IIRC.
The "Genesis" is actually their term for the frame design that lays the engine down near-horizontal; the FZR600 is a Genesis bike even though it's a 4-valver. I didn't know the YZ & WR were 5-valve heads though, you learn something new every day!
Rusnak_322
Rusnak_322 HalfDork
1/7/12 7:13 a.m.

Got to chime in again. The three FZRs that I owned were all 4 valve but had Genesis stickers on them.

Look at the tail of this FZR600

vazbmw
vazbmw Reader
1/7/12 1:16 p.m.

That would be accurate. The Genesis head came out in 1984 on the Yamaha FZ750. Oh and nice looking bike. I loved the FZR's but never got one. Went from the FZ to a Suzuki Katana 1100

Rusnak_322 wrote: Got to chime in again. The three FZRs that I owned were all 4 valve but had Genesis stickers on them. Look at the tail of this FZR600
SlickDizzy
SlickDizzy SuperDork
1/7/12 5:34 p.m.

Seems like Yamaha's marketing at the time couldn't keep it straight - the "Genesis" is advertised as a frame concept on the FZR400/FZR600 (again - 4-valve heads) but as an engine on the FZ750/FZR750/FZR1000. Also, the Genesis snowmobile engines are not all 5-valves according to Yamaha EU.

FZR600 info

The four-valve Yamaha FZR600 engine was slanted forward in the frame. This was the basis of the Genesis frame concept, and helped to lower the centre of gravity and help centralise mass.
vazbmw
vazbmw Reader
1/8/12 12:17 a.m.

Nice bike. Yamaha was "messing" with us big time. You guys rock with your FZR knowledge, and I still want and FZR 600

SlickDizzy wrote: Seems like Yamaha's marketing at the time couldn't keep it straight - the "Genesis" is advertised as a frame concept on the FZR400/FZR600 (again - 4-valve heads) but as an engine on the FZ750/FZR750/FZR1000. Also, the Genesis snowmobile engines are not all 5-valves according to Yamaha EU. FZR600 info
The four-valve Yamaha FZR600 engine was slanted forward in the frame. This was the basis of the Genesis frame concept, and helped to lower the centre of gravity and help centralise mass.
stroker
stroker HalfDork
1/8/12 11:02 a.m.

so if Wikipedia is correct, the FZR and YZF models had steel frames but they don't indicate what the YZF-R6 frame is made of...

CLNSC3
CLNSC3 Reader
3/24/12 5:44 a.m.

I LOVED my FZR, it was my first bike...I had the Vance and Hines edition, super rare and I wish I had never sold it!!!! For those of you unaware of this edition, its BRIGHT pink and BRIGHT yellow

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