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xz850

Started by tremalzo, June 23, 2018, 02:30:58 PM

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tremalzo

Yamaha XZ550 stroker build by Dutch Tuner Cees Fick, 80 x 84 bore/stroke makes about 850cc. Driveshaft drive has been modified to sproket drive.


https://www.youtube.com/watch?v=2CH7A5x6jEI

Rikugun

Vey cool. Looks like some downdraft CV carbs but not sure what they're from? Jetting seems to be right based on throttle response anyway. Sounds good, nice work.
It is far better to grasp the universe as it really is then to persist in delusion, however satisfying or reassuring.  Carl Sagan

jefferson

I think he needs some larger air filters. Looks rather restrictive for a 425cc gulp of air.

QBS

Based on the idle, I wouldn't be surprised if he was running stock cams.  It sounded quite streetable.  It's good to see our engine taken outside of the box.

motoracer8

 I made a 650 out of one, but it was just bore.
83 Vision and 11 others, Japanese, German and British

iain

What pistons did you use

Iain
NZ

motoracer8

 I made the liners from aluminum pipe and them plated. The pistons were custom made by JE.
83 Vision and 11 others, Japanese, German and British

fret not

We used to have a wonderful company in Sacramento (Chromecraft) that would take on small unusual jobs, like building up a crank journal or surfacing and plating fork tubes.  No more.  Now they are an industrial focused business and no longer accept small jobs.  But if you have a fleet of heavy equipment that needs their hydraulic rams re-plated they are the place to go.  Sigh.
Retired, on the downhill slide. . . . . . . . still feels like going uphill!

pullshocks

A lot of info about John Clemens' 650 cc vision engine in this thread.
http://ridersofvision.net/rovforum/index.php?topic=11572.0