Possibly Yoshimura Prepped – 1990s Suzuki GSX-R 7-11

In Japan, Race by AbhiLeave a Comment

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You may remember that back in September I gave you a heads up on the estate auction of Charlie Mavros – one of those bikes has been serviced and back on the market! A 7/11 (GSX-R 1100 motor stuffed into a GSX-R 750 frame) that looks like it’s got plenty of Yoshimura love in it, this is a former racebike that’s begging to get back out there.

Per the seller, after a service this bike put out 180 horsepower on a dyno on regular race gas. I’ll leave the rest of the description to the seller as well, because I haven’t been able to find additional information myself:

I have had trouble finding the exact race history on the bike, but it is very close to the original “Big Papa” bike Yoshimura built for Formula USA. The horsepower it makes, the 750 chassis etc are all as the original had. It screams factory level Yoshimura prep. It was imported through Pennsylvania, and has import customs tag on the frame, as the bike was built from blank parts in Japan. The base is a 1990 era GSXR1100 motor, fit into a early 90s GSXR750 chassis(which was a common race build back then).

Every part has had some love, this is very far from a lightly modded race bike. PM Chicane wheels, PM cast iron rotors, PM quick change billet calipers with quick change pads, Brembo master, billet triples, Dechellis clutch with cable actuation(I believe its a slipper clutch), Sudco Keihin flatslides with Yosh airbox(I have side panels for airbox),dual oil coolers, Yosh rearsets, Sprint damper, custom subframe and heavily braced swingarm, Fox Racing shock, Carbon fiber fenders, lithium race battery, drilled rear rotor and mostly Ti hardware throughout.

The bike is lightweight, and seriously fast. We believe it has a Falicon lightened crank and Carillo rods in it, but did not pull it apart to verify. Again, this bike revs instantly, and should be into the mid 180’s for HP with VP MR12 or similar type fuel. Ready to ride, the only mod I feel needed for track use would be to change the rear tire to one size slimmer, as its too close to the chain right now. Should be vintage track legal in many different organizations.”

The seller is upfront that the bike was acquired from an estate – this link suggests that it sold for $5,000, plus whatever auction fees may have been included. Find this GSX-R for sale in Winchendon, Massachusetts for $8,500 here on Craigslist.

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