[My yzf750R7replica]

Dont suppose youd sell it?

Ricky

hm, I might sell it, not right now cos in pieces getting new valve seals etc.

I would want around 3500gbp for it.

or a crappy R1 04

[YZF1000 cylinders on YZFbottom end]

Hi Dac1915

I need the same info as you, have you seen this page? : http://www.d-murray.co.uk/convert.htm

It has some usefull info, oilpressure etc could play a part, but that should be possible to fix with a mod to the head gasket, maybe..

let me know if you find info, and ill do the same.

[My yzf750R7replica]

wow that is gorgeous

Thank you.

[Yamaha yzf750 - Thunderace engine swap?]

Sorry, i don`t know a lot about using the 750 crank, all i know is the Ace or FZR1000 engine can be built into the YZF750 casings, thus keeping the original engine number.

Ok, thanks

hm, i think i will try and put cylinder and pistons from a fzr1000 on my yzf750 engine.

the cylinder should be to high and have to be machined.

[My yzf750R7replica]

Hi and thanks for the reply.

So basically everything is intact and that piece is the only bit you have to do?

Assuming the rear number plate plastic needs cut (original undertray)

Also any ideas where I could get hold of the rear R7 tail piece.

John.

Hi again

yes thats all I cut of, but I added some brackets to get the right hight of the tail.

and yes I used the original battery-box/ undertray, read the story here of how I built the bike.

here are some places to buy R7 stuff

http://www.airtech-streamlining.com/yamaz/YZF750R71999.htm#price

http://www.superbikebodywork.co.uk/Yamaha.htm#R7

[My yzf750R7replica]

The rear section, was there any modifications to the frame.

If I just wanted to change the rear what would it involve?

Thanks

Hi

Yes I did some mods to the rearframe, look at this image, the red part was removed.

It looked like this before painting

I only did this to get the R7 rear to fit without having to cut away anything.

[newwer body for yzf 750!!!!!!!!]

Hi

not R6 or R1, but I have R7 fairings on mine.

[1997 yzf 750]

yes i think thats correct.

[Yamaha yzf750 - Thunderace engine swap?]

Hello all,

bit new here so I'll take a guess on that if you kept the 750 crank with the 1000 cylinders you'd end up with something like a 900cc. THe reasoning being the 1000 would be a longer stroke crank?

Hi

yes, kind of

you would get 824cc, high revs, 6gears, almost same weight.

But most of all, you did something a bit more unusual :-)

But the question remains, can it be done?

rf9rider need to come by this thread again.

[My yzf750R7replica]

thanks for the reply,, if you dont mind me asking how much was the kit,??

if i am being to nosey just tell me to sod off, just i am after doing this to my bike,, thanks

No prob, but since almost the only thing I bought for the bike is the fairing and seat unit I can't

tell you what everything needed will cost you.

I payed around 260£ for the fiberglass stuff, I traded some R1 plastic with my garage mate to get the projectorlights he had, the paint cost me 30£..

The company I bought the faring from is not in business anymore and I don't know who their supplier was, I don't know of anyone selling the R7 fairing in fiberglass, QB has it in carbon.

Headlights, guess you can order it from yamaha, I made mine myself (prototype maker by trade), same for the screen but that is available as aftermarket.

feel free to ask again, much is described in the build tread i posted before.

ringading & Ryan09:

Thanks for the nice comments, I only spent two months on it and it came out fairly good.

I love the bike, it handles well and its fast enough for backroads here in sweden.

Maybe I will sell it now, or upgrade the engine with 1000cc parts to get a 824cc screamer,

problem is i don't know if its do-able.

Maybe this is the place to find out..

[My yzf750R7replica]

where did you get the kit from??? and what was it like to fit??? thanks

and that is one sexy bike,,,

Hi

it wasnt that much of a kit, i got the fairing and tail unit from a swedish firm that imported it from some eastern european country, fiberglass.

The rest was done by me, screen and headlights etc.

Full build story can be found here: http://www.motorcyclebuilders.net/forum/showthread.php?t=44

[Yamaha yzf750 - Thunderace engine swap?]

Just to add, if you want to keep your bike "original", you can rebuild the Ace motor into the YZF750 engine casings, so you keep your engine number, and then who`s to know what the actual cc is?

Hi

I just joined efter reading this tread, and I have a question about what you say above.

Would cylinder, piston, conrods and head from a fzr1000 or thunderace fit on the yzf750r engine and crankshaft?

A frame mod to make it fit is ok, but is the cylinder swap-able,

or does the case need lots of modifications?

From what you write i guess it works, but i like to keep the 750 crank.

[My yzf750R7replica]

Hi all

new here today and I start with showing you my yzf750r, I rebuilt it to look like and R7.

Please ask if you want to know anything.

Regards

/Petter

edit, how do I attach an image?