ZXR750 track bike build

Just thought I'd post some pics of my track bike build over the last year or so...


I bought the bike as an unfinished project. No bodywork and everthing else pretty much stock except for the FCR's and carbon airbox.






Bought this carbon fibre bodywork including carbon fibre tank from a nice chap in Sydney who was parting out his race bike.




Dyna 2000 programmable ignition

Last edited by zxrmad on Sat Jul 09, 2016 1:01 pm, edited 2 times in total.

Stock radiator which has been cut down to get more airflow into the carbon airbox


Stripped down and cleaned up




Test fit up with the new bodywork. I've since found out from a knowledgeable member on here that this bodywork is ex Troy Bayliss


Nice set of period Marvic magnesium wheels. Bought these from USA


The Marvics are a direct bolt on to ZXR including rotors and sprocket

Last edited by zxrmad on Sat Jul 09, 2016 2:38 pm, edited 2 times in total.

These Marvics were originally supplied by Yoshimura by the looks. 6.25" rear... hope it fits






New carbon rear hugger from Sebimoto in Czech Republic


Rebuild kits for FCR41's from USA

Last edited by zxrmad on Sat Jul 09, 2016 1:11 pm, edited 2 times in total.

Rebuilding the carbs was easy enough but splitting the rack of carbs was a stressfull job. Lots of shit to go wrong here








Relocated the stock coils to the front to give more room for the airbox

Last edited by zxrmad on Sat Jul 09, 2016 1:13 pm, edited 1 time in total.

New Yoshi multi temp meter. Also fittled a couple idiot lights and custom race wiring loom.






Removed and blocked off the alternator, big weight saving here.


Fitted a small carbon battery box in place of the alternator.

Last edited by zxrmad on Sat Jul 09, 2016 1:16 pm, edited 1 time in total.

New titanium bolts (from UK) fitted to all of the rotors.




Bottom of the carbon airbox has been modified to allow the stock OEM fuel bowls to fit


Lithium battery fitted, tight fit. Hope it's big enough to do the job




I hate this wavey rotor, but it's light and all I can find at the moment. My OCD won't allow it to stay for long. Need to find a period rotor

Last edited by zxrmad on Sat Jul 09, 2016 1:22 pm, edited 1 time in total.

New Dunlop Q3 190 tyre fitted to the 6.25" Marvic only just fits


Home made quick release tank mount


New grips fitted






New rearsets

Last edited by zxrmad on Sat Jul 09, 2016 2:50 pm, edited 4 times in total.

Home made bracket for coolant reservoir

Last edited by zxrmad on Sat Jul 09, 2016 1:26 pm, edited 1 time in total.

It's now 95% finished. Just need to strip and repair/ replace the clutch and replace the water pump then hopefully do a track day for a test. No doubt there will be some tuning required to get the FCR41's to work

Last edited by zxrmad on Sat Jul 09, 2016 10:14 am, edited 1 time in total.

Looking great so far

Thankyou for sharing, I love seeing build pics.

One thing that I can't resist commenting on is the exhausts.

When I compare this:


with this:


I can't help thinking that the first exhaust is aerodynamically better than the second, because the first muffler looks like it was oriented to help fill in the low-pressure wake area right behind the bike.

Thankyou for sharing, I love seeing build pics.

One thing that I can't resist commenting on is the exhausts.

When I compare this:


with this:


I can't help thinking that the first exhaust is aerodynamically better than the second, because the first muffler looks like it was oriented to help fill in the low-pressure wake area right behind the bike.

Thanks.

Yeah the exhaust is one thing that I need to fix. Not sure why but it sticks out like dogs balls! It's a Yoshi system made for the ZXR but the mid pipe looks like it's missing a bend for some reason.

Out of curiosity, what brand is the first exhaust? I can't quite make it out from the pic.

Out of curiosity, what brand is the first exhaust? I can't quite make it out from the pic.

No idea. The headers are steel and very rusty. The muffler has a carbon shell but the muffler is falling apart. The headers may be OEM but there's a bsp plug at the bottom of the headers as if for an O2 sensor or something. Not sure what they would have come off

The Harrison Billet 6 pot callipers are quite nice period items too