Radian Way Cool

[the fan]

Did I mention that you can swap the transmission from a YZF750 into the FZR1000 cases to gain a 6th gear?

[Ratchet_72]

     Have you ACTUALLY seen a Fazer on the net/real-life that has done this FZR1000 swap? Dude, your killin me.  Was there a post on a forum somewhere? I have got to research this.
     What really sucks is I passed on a FZR1000 parts bike that had a running motor (86/87 I believe.) Which means I coulda used the front end for the FJ.

[the fan]

Not in person, but have seen it discussed many times. Here are about 5 minutes worth of search results. Its never really been all that big an interest for me as I prefer smaller bikes.

http://www.fzx-fazer.com/portal/viewtopic.php?f=19&t=165

Fazer with FZR-1000 engine installed

http://www.angelfire.com/retro/torkezilla1/html/1fzx_6_Fazerfaq.htm

Q: I want more power. What are my options?

A: The most common engine upgrade, the 4-1 exaust / k&N filter / Dynojet kit should give you not a huge but a noticeble power gain.
If you own a Fazer 700 you can simply swap the engine for a FZX750 or FZ/FZR750 and take advantage of the extra 50cc. These engines are direct swaps with no or irrelevant mods.
If you're a power freak, you can always swap your engine with the '87 or '88 FZR1000 engine. Shhhh! Keep this secret. This engine swap requires only a few mods as it must use the stock Fazer water pump and shift shaft.
The later Exup1000 engines are not supposed to fit, due to the decreased (from 45º to 35º) engine block inclination, but I've seen a small number of FZXs with Exup engines in them, so I guess they fit alright... however I'm not sure about the amount of labour needed to shoehorn them into the FZX chassis...
You can also keep your Fazer crank and 6speed box and swap only the FZR1000 engine block / rods / pistons / head / carbs and have the 911cc conversion. This is a more or less "famous" mod among racers and engine tuners.
Or you can simply fit the '88 FZR1000 37mm carbs on your Fazer and take advantage of the extra gulp of gas.
Wiseco has a big bore piston kit for the FZ/FZR750. Any aditional info on this would be appreciated and it will be added here. Thanks.

Q: Which parts are interchangeable with the FZ/FZR 750 and FZR1000?

A: Engine parts are pratically all interchangeable, some parts depending on the year of making.
FZ750 wheels are a direct swap to the Fazer. Later FZ750 front wheel (17") is not a direct swap because of the rotors size.
Early FZR1000 rear wheel (4.5"x18") is not a direct fit but can be machined to fit. Wheel hub have 5 rubber fins instead of the Fazer 3.
Early FZR1000 Genesis front end is a direct swap to the FZX chassis, as the steering stem is identical. So, this is an easy way to get beefy forks, huge brakes and a 17" front wheel in your FZX.

If anyone would know the answers it would probably be these guys:
http://www.fzrarchives.com/
http://autos.groups.yahoo.com/group/fzxfazer/
http://www.fzx-fazer.com/portal/

I do know that the early FZ/FZR motors were very similar to the FZR1000, but the later Exup 1000 was a different case.

I owned an 86 FZ750 and an 89 FZR750R (OW01) back in the late 80's/early 90's and sold them to race dirty bikes....I never was very bright.