Kz 750 road racer , dry clutch project

Because the lack of room on the main housing, the oil filler location had to be relocated

It's not ideal but sometimes there's no choice

Just a quick question...what are the performance advantages of a dry clutch?

I would say minimal

The effort doesn't weigh the advantage

Because of covid, have some extra time on my hands , can't throw in the towel now LoL

When I lightened up my crank 2 lbs ,it made a big difference how fast it would spool up ,
The clutch works the same way,it's smaller diameter than stock, weight is 2 lbs lighter and not being weighed down by more oil weight and drag.

Hope it works

Hi richard, top shelf work you are doing there mate.
I was wondering if you have a record of the process when you lightened your crankshaft, I'm sure many here would be interested in that aspect of your build.
Really enjoying this thread.

Cheers.

I might have a picture of the crank on my old lap top
Will look this evening

I read so much on the subject that it was dizzying , heavy good , heavy bad ,decided to look at typical modern performance motorcycle crank for inspiration R6, Busa,zx10R

If it's a fail I simply put a spare stock one back in ,
Needs to be properly balanced in the end

It was a successful, very snappy and responsive
I seriously broke 2 kz1000 J tach needle
In 2 weeks and my spare Autometer tach

Needles kept falling off after 1 session
Even though they were soft rubber mounted

I don't have a proper explanation
This KZ revs far from a TZ LOL

have gone digital since

Picture shows needle at the bottom of the tach window

With gains come losses
Because the lack of a tack and rev limiter
At one of the races,my rider had an engine failure,he said the engine was happy and pulling high RPMs
Problem is what is high RPMs?

I suspect close if not above 12 000
Pics show the damage

Bucket went through the head and broke 3 shims
It's rare to break those tiny shims let alone 3

It's all back together with a new head
And running great,....rev limiter now set at 10 500 to avoid that mess again

Dang!! That's a Wake...up call!!

So the lesson is that revving an engine far above the manufacturer's redline limit can cause serious engine problems. Gee, who would have ever expected that? :laugh: Ed

These are the pictures of the crank
I'm no expert on the subject but was
Pleased with the turn out and how it performs , it was outsourced for proper balancing

Absolutely amazing work, that´s art!
I have thought about a rev limiter for my build to, just to get rid of the gauge.
I´m new for that typ of things, but that thing you have looks easy to use?

Very easy to use
If I remember correctly 3 wires
Easy install,
A good back up when eyes are focused
On the track

Had to convert from 4 pot calipers
To 2 due to racing rules
Was able to source some brembo p108s