Topic: Hi out put oil pump 400/4

[Chris Tyler]

Hi

I have been told that Dixon racing marketed a big bore oil pump from Yoshimura for the 400/4. That this was required to help with no1 journal?
Anyone got one? Is there another way of increasing the oil supply to the big ends?

Thanks Chris

[specweld]

Chris, try Kevin at TTR400, he used to upgrade your existing pump as a service.

[classic bike tuner]

machine a 500/550  oilpumpinside  [rotor]  in the 350/400 oil pump housing

gerrit

[Chris Tyler]

Hi Specweld

Thankyou
I looked on the tt400 website. Nicely detailed page on how to modify the pump with a 750 rotar.
Shame he is off travelling cos he has a lot of great parts.

Gerrit
Thanks for the advice. Similar mod?

Chris

[ttr400]

I'm still here for now, only planning on leaving around May this year.
Initially I modified the 750 rotor, but found most of the 750 pumps I bought were badly pitted and could not be used, so now I make my own rotors to my spec. these I have wire cut from a special steel and then liquid nitrided.
Just done a pump for a customer it was my last rotor, but I will try to do another small batch before I leave.

Kevin