YZF 750 Race Bike Project Versions 1 and 2
Posted: Sat Jun 13, 2009 7:34 am
I decided to give racing a go this year and after a bit of thinking and looking around I settled on 'New Era' (1990 to 1995). There were decent bikes to pick from in this era and I also know a couple of the guys already racing in it. In Queensland the class is dominated by Ducatis and Hondas with the odd Suzuki and Kawasaki thrown in. Nobody was racing a Yamaha! My research told me that the YZF750 was a fairly capable bike so the decision was made and I was off.
I started off with a '94 750R -

Now I gotta say that I am not a fan of the paint scheme or the styling but it was the performance I was after so I could overlook everything else
The bike had 20,000 kms on the clock so I reckon that means it has done 120,000 kms. To ease into it I just bought some race glass and had the fork internals replaced and stuck a can on it. Race prep complete!
Well not that easy. I did have some trouble getting it running OK and I was worried about not having spares at the track. What I needed was another one! So along came another '94 750R -

Complete with ventura rack! (sbutler may recognise this bike ?)
Bits were then taken from both to come up with race bike version 1 -

Off to the track for the first round of racing. I didn't know what to expect from me or the bike but we both survived the weekend and I came home fairly happy. I had only ridden at the track once before at a track day on a borrowed 748 Ducati. By the end of the weekend I was lapping 7 seconds faster than the start which was good. I was still 3 to 4 seconds off the fast guys though.
In between rounds I tinkered around with a few things, mainly to do with ground clearance and was ready to do it all again. Round 2 ended with a qualifying crash. It was a fairly uneventful low side but the bike dug into the dirt and barrel rolled. There was a bit too much damage to fix at the track so that was the end of the weekend.

Not very pretty but all fixable. That crash being out of the way I thought I would tart it up a bit for the next outing. So after much fibreglass repair, bog work and dipping into the spares, race bike version 2 was ready -

I was fairly happy with the new look. The colour was one I picked from a colour chart at the paint shop and whilst it is a Mazda colour, I think it suits the Yamaha
. Unable to get YZF 750 decals I used Thunderace ones instead!
Set out for round 3 with a plan to use the Friday track day as a body position practice day. I had seen some photos of my 'style' and it was pretty ugly. Arse planted firmly in the seat, very little upper body movement. I suspect my low side may have been caused by just riding off the side of the tyres!
I laugh when I look at the next pic because in my mind I was hanging right off the bike with the knee out and the head down.


In reality, Arse planted firmly in the seat, very little upper body movement
Then it went pear shaped. The track photographer caught the second half of the incident.

Go for a roll

roll some more

don't look back



time to go home.
So the spares bin is now looking really bare and the rubbish pile is getting bigger
. Race bike version 3 has begun. The spare frame, swingarm and wheels are in getting checked for staightness and I have started stocking up on fibreglass repair materials
It will probably be August before the bike (and me) are ready to go again..but we will go again 
That is the story so far. A few people have suggested that I should bale out of the YZF and get something else to race. On reflection the bike has been great, it is just the operator that needs improvement
I started off with a '94 750R -

Now I gotta say that I am not a fan of the paint scheme or the styling but it was the performance I was after so I could overlook everything else

The bike had 20,000 kms on the clock so I reckon that means it has done 120,000 kms. To ease into it I just bought some race glass and had the fork internals replaced and stuck a can on it. Race prep complete!


Complete with ventura rack! (sbutler may recognise this bike ?)
Bits were then taken from both to come up with race bike version 1 -

Off to the track for the first round of racing. I didn't know what to expect from me or the bike but we both survived the weekend and I came home fairly happy. I had only ridden at the track once before at a track day on a borrowed 748 Ducati. By the end of the weekend I was lapping 7 seconds faster than the start which was good. I was still 3 to 4 seconds off the fast guys though.
In between rounds I tinkered around with a few things, mainly to do with ground clearance and was ready to do it all again. Round 2 ended with a qualifying crash. It was a fairly uneventful low side but the bike dug into the dirt and barrel rolled. There was a bit too much damage to fix at the track so that was the end of the weekend.

Not very pretty but all fixable. That crash being out of the way I thought I would tart it up a bit for the next outing. So after much fibreglass repair, bog work and dipping into the spares, race bike version 2 was ready -

I was fairly happy with the new look. The colour was one I picked from a colour chart at the paint shop and whilst it is a Mazda colour, I think it suits the Yamaha

Set out for round 3 with a plan to use the Friday track day as a body position practice day. I had seen some photos of my 'style' and it was pretty ugly. Arse planted firmly in the seat, very little upper body movement. I suspect my low side may have been caused by just riding off the side of the tyres!
I laugh when I look at the next pic because in my mind I was hanging right off the bike with the knee out and the head down.



In reality, Arse planted firmly in the seat, very little upper body movement

Then it went pear shaped. The track photographer caught the second half of the incident.

Go for a roll

roll some more

don't look back



time to go home.
So the spares bin is now looking really bare and the rubbish pile is getting bigger



That is the story so far. A few people have suggested that I should bale out of the YZF and get something else to race. On reflection the bike has been great, it is just the operator that needs improvement
