TuckerBag
24th March 2009, 14:05
I am about to do a rebore, piston, and rings on my '92 jap import XT400 "Artesia".
I would like to bore it out to about 425-ish cc just to squeeze that little bit more power out of it without having to change cams or valves etc.
It has an 87mm bore and 67.2mm stroke.
89mm bore = 418.1cc
90mm bore = 427.5cc
The XT600 (not 400) piston is approx 97mm bore I believe. I think this is too big.
Does anybody have any idea if a suitable piston exists?
I am open to any words of wisdom on what I am attempting to do here.
I have read some posts by a KB member "Motu" who did something not quite similar to what I am trying to do.
And yes,... I do realise that I should just burn this bike and get something decent,.. but,... well..., I am going to persist for now.:wacko:
Cheers.
I would like to bore it out to about 425-ish cc just to squeeze that little bit more power out of it without having to change cams or valves etc.
It has an 87mm bore and 67.2mm stroke.
89mm bore = 418.1cc
90mm bore = 427.5cc
The XT600 (not 400) piston is approx 97mm bore I believe. I think this is too big.
Does anybody have any idea if a suitable piston exists?
I am open to any words of wisdom on what I am attempting to do here.
I have read some posts by a KB member "Motu" who did something not quite similar to what I am trying to do.
And yes,... I do realise that I should just burn this bike and get something decent,.. but,... well..., I am going to persist for now.:wacko:
Cheers.