ZSNOW
04-11-2011, 03:29 PM
I have a 86 250r with a paulturner 265 national motor with a cool head that i raced while racing 450's and even 300's before that.
im out of racing for atleast a little while now and have no other bikes but my 250r. i would like to be able to ride my 250r more often than just when i can afford race fuel so heres my question.
is there any way that i could down tune my national motor to run pump?(such as changing the dome in the cool head?) or will doing this still result in detonation of the motor?
I tried calling duncan racing but of course they aren't open on mondays so i figured i would try here also.
Thanks ,:confused: :confused:
im out of racing for atleast a little while now and have no other bikes but my 250r. i would like to be able to ride my 250r more often than just when i can afford race fuel so heres my question.
is there any way that i could down tune my national motor to run pump?(such as changing the dome in the cool head?) or will doing this still result in detonation of the motor?
I tried calling duncan racing but of course they aren't open on mondays so i figured i would try here also.
Thanks ,:confused: :confused: