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by tabond
Mon Oct 10, 2016 10:58 am
Forum: Racing
Topic: Building another FZ17
Replies: 9
Views: 3349

Re: Building another FZ17

I've obtained a YZF750 frame for this project. I'm wondering if anyone knows if the actual shock length is the same from the 1K to the YZF? I have an early Ohkins from a 1K that would make a decent start point for the build, but with nothing to compare to I'm not sure it will work. I know there's an...
by tabond
Wed Sep 14, 2016 6:23 am
Forum: Racing
Topic: Building another FZ17
Replies: 9
Views: 3349

Re: Building another FZ17

The drive behind swapping the 1K head onto the YZF750 block is rules based. The YZF750 engine as-is is illegal in our vintage rule. But with the 1K head installed it's a OW01 replica, as the lower end of the YZF is identical other than the expensive lightened parts. Vintage racing is more often abou...
by tabond
Sun Sep 04, 2016 10:20 pm
Forum: Racing
Topic: #2 Race bike
Replies: 9
Views: 2769

Re: #2 Race bike

Ever find out the secret? There's quite a bit of casting mid way between the intake port opening and the actual valve than can be removed to straighten things up, but the increased volume reduces velocity etc.. Possibly some fill work on the upper corners of the outer two runners to compensate?
by tabond
Sat Sep 03, 2016 8:10 am
Forum: Racing
Topic: Building another FZ17
Replies: 9
Views: 3349

Building another FZ17

I'm headed out for our last race of the year with our FZ17, and I'm picking up a YZF750 motor for this winter's race project. I was recently reading some threads on "poor-man's OW-01" and am doing some planning. I have a 91 FZR1000 donor motor that I'm thinking of robbing the head off of a...

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