Yoshimura R&D Superbike

mtbspeedfreak wrote: Long time no update...

Not much to add other than I saw a craig's list ad I couldn't pass up: "One of two motors built by Kerry Andrews for Eddie Lawson in his last season as a privateer before he got a full ride from Kawasaki." Sold!!! Thanks to Tri for pointing that out!

nice! and pictures please.....

Its been said....but whats inside those engines?????

could be a "Al Capones Valt" or a gold mine......

shaved crank end?

I'm hoping to get some pictures up by the end of the weekend. I can say that it has a few cracked and repaired fins (that I'll need to touch up because they don't look good enough to me); a normal starter, the internal gearing for the kickstarter, the magnet on the left side of the engine for the stator, a windage tray [first time I've seen a windage tray on a Z engine], ported head, shim under buckets, and an oil passageway or something in the buckets.

If it was for EL ..... then it had the best parts and Engineering .....maybe we could learn some engine buiding tricks.....lets face it, back then they didnt publish mods to bike.

4TheKZ1000 wrote: If it was for EL ..... then it had the best parts and Engineering .....maybe we could learn some engine buiding tricks.....lets face it, back then they didnt publish mods to bike.

actually the later work that rob muzzy did for the official EL bikes was amazingly well documented in kevin cameron's articles in cycle mag....

and BTW, this december's issue of UK classic bike mag has a feature on the racecrafters kawasakis of Klinzamn and company, nice read

Here are a few pictures of the lump:

MMS_6635 by mmsmithgall , on Flickr

MMS_6636 by mmsmithgall , on Flickr

MMS_6636 by mmsmithgall , on Flickr

MMS_6640 by mmsmithgall , on Flickr

MMS_6655 by mmsmithgall , on Flickr

MMS_6660 by mmsmithgall , on Flickr

MMS_6667 by mmsmithgall , on Flickr

MMS_6670 by mmsmithgall , on Flickr

A little top end work:

MMS_6651 by mmsmithgall , on Flickr

MMS_6654 by mmsmithgall , on Flickr

MMS_6662 by mmsmithgall , on Flickr

MMS_6664 by mmsmithgall , on Flickr

MMS_6663 by mmsmithgall , on Flickr

MMS_6675 by mmsmithgall , on Flickr

MMS_6676 by mmsmithgall , on Flickr

MMS_6677 by mmsmithgall , on Flickr

Bottom end

MMS_6681 by mmsmithgall , on Flickr

MMS_6682 by mmsmithgall , on Flickr

MMS_6685 by mmsmithgall , on Flickr

MMS_6686 by mmsmithgall , on Flickr

Any idea on the cams? "Hypercycle #5" is the barely legible inscription on both cams.

MMS_6641 by mmsmithgall , on Flickr

MMS_6642 by mmsmithgall , on Flickr

MMS_6644 by mmsmithgall , on Flickr

MMS_6646 by mmsmithgall , on Flickr

MMS_6646 by mmsmithgall , on Flickr

MMS_6650 by mmsmithgall , on Flickr

It does seem odd that he kept all the excess weight on it for racing. u would think the first thing he would do is get rid of the kicker , the stator,and the starter??

Nice find.

mark1122 wrote: It does seem odd that he kept all the excess weight on it for racing. u would think the first thing he would do is get rid of the kicker , the stator,and the starter??

well, not if it was an endurance racer outfitted for night running.... or maybe a racer put back on the street, who knows?

better shots inside the inlet ports could shed more light, shaved-to-the-roof guides? or just streamlined?

shape of CC and piston crown is interesting too of course.. we can wait

what's the lift on those cams?