Posts by tag: 4-valves per cylinder

Suzuki March 29, 2021 posted by

Featured Listing: 1983 SUZUKI GS750ES

The 1980s: A period of rapid and wild development that set the motorcycling course for the next several decades. It seemed for a time that every innovation was rapidly made defunct by the next quantum leap in engineering – or experimentation. From the end of the 1970s right into the 1990s the world saw massive jumps in suspension tech, chassis engineering, internal combustion enhancements, clutch and transmission improvements, and aerodynamics. Some of the innovations worked and became mainstream. Others were fated to be “one year wonders” as manufacturers rapidly pivoted to something new. In between the extremes some absolutely amazing motorcycles were created. Today’s Feature Listing is one such model: the 1983 Suzuki GS750ES.

Featured Listing: 1983 SUZUKI GS750ES

The Suzuki GS750 first bowed to the world in 1977. At that time it was more of a UJM (Universal Japanese Motorcycle), or what would be better known as a standard motorcycle. This was a response to Honda’s dominant expertise in the inline four game, and at which Suzuki was playing catch up. But catch up they did, steadily evolving the GS750 into an absolute gem of a sport bike; the ’83 ES variant enjoying a 16-valve DOHC head with Suzuki’s trademarked Twin Swirl Combustion Chamber (TSCC), a greatly updated chassis which included the cutting-edge Full Floater single shock setup in the rear, and trick anti-dive forks up front. And rather than the 18/19 inch combo front and rear carried by predecessors, the ES model now carried a 17 incher out back and a GP-inspired 16 inch wheel up front. The smaller front wheel did turn out to be a short-lived fad, but the reduction in rotational weight and gyroscope tendencies helped the smallest and lightest of the GS750 lineage turn and track like no other.

From the seller:
Completely stock, unrestored, unmodified and un-faded
Classic 80’s sport bike style
Two adult owners from new, 3,000 miles believed correct
As close to a showroom-new GS750ES as you’re likely to find
Original tool kits come with bike
Regularly and recently ridden

Price: Mecum Auction Lot F67 April 28 – May 1

Contact: Bob (superhawk65@gmail.com) or visit the Mecum Auction site

The 1983 Suzuki GS750ES was the last of this particular lineup; the economy stalled any further development and unsold units were sold off as 1984 models (unchanged). By 1985 H-D began the Great Tariff War and capacities were dropped to 700cc to avoid additional taxation. That makes this 1983 Suzuki GS750ES the last of its kind, and in about the best shape we’ve seen one of these retro machines. With 70-ish HP on tap and relatively modern components, the GS750ES is a great pick for anyone wanting to pick up some nostalgia – and who also wouldn’t mind riding it around. Suzuki did crank out a large number of the GS750 models (a definite best seller for the Hamamatsu manufacturer), but today few of them survive in this kind of condition.

Today’s Featured Listing will be enjoying the limelight at the Mecum auctions in Las Vegas, April 28 – May 1. With very few miles and sitting in stock, original condition, this bike will certainly catch the eyes of collectors. Interested parties might want to chat with Bob ahead of the auction to learn more. This bike is an incredible time capsule of the pinnacle of the pre-GSXR world, and will certainly be grabbing attention wherever it shows up. Whether you were there and had one, missed out but always wanted one, or just learning about the era now, this 1983 Suzuki GS750ES is worth the effort. Good Luck!!

MI

Featured Listing: 1983 SUZUKI GS750ES
Moto Guzzi July 18, 2020 posted by

Ride Home and Rethink Your Life – 2000 Moto Guzzi V11 Sport

One of Moto Guzzi’s last development projects before Aprilia took controlling interest, the V11 was a big step forward which didn’t forget its Mandello del Lario roots.  Previous owner Ewan McGregor is now a Guzzi ambassador but was a big fan before, and improved his V11 Sport with a classic Magni fairing.

2000 Moto Guzzi V11 Sport for sale on eBay

The V11’s look is unmistakably Guzzi, the big “square” heads hanging out in the breeze to help them keep their 91 hp cool.  The V11’s engine is a stressed part of the chassis, letting the exhausts reign over ( under ? ) the engine bay, with the prominent frame connectors anodized in red.  Accompanying the silky six-speed, the chassis is a mixed bag, with headstock raised to 25 degrees to quicken turn-in and swingarm lengthened to reduce the adverse shaft effects.  The original was shipped naked, the  factory clip-ons sneaking out under the various small fairings available.

Offered by the second owner’s shop, this 1100 Sport is in extraordinary shape, and carefully photographed.  The basic improvement of the Mandello exhausts and Power Commander complement the flash of the color-matched Magni fairing and nifty bar-end blinkers.  Comments from the eBay auction:

The current owner is a discerning collector who spares no expense maintaining his bikes and is releasing the Guzzi V11 Sport from his private collection. McGregor sold the bike in 2017 with 8,000 miles on the clock and my client has added 3,500 miles in 3 years. The V11 currently shows 11,349 on the odometer. 

Moto Guzzi developed the bike in conjunction with Aprilia’s Development Dept, developing 91bhp in stock trim with 70ft lbs. torque. The bike starts instantly and careful dyno tuning has improved the ride-ability dramatically. The installed power commander and custom map smoothed out the power curve, improving low speed ride-ability and highway speed riding. 

The bike has been maintained with no expense spared and as shown in the photos is still in almost perfect condition. Selected tasteful accessories have been added to the bike and are included with the sale along with stock turn signals, foot rests, original Brembo clutch and brake reservoirs etc.

  • Improved night vision with Bosch LED headlamp
  • Rizoma bar end mirrors and LED signals
  • Rizoma billet brake/clutch reservoirs
  • Adjustable footrests
  • Power commander and Dyno tune improved fueling.
  • New brake pads
  • Fuel / oil filters changed
  • Forks were re-valved and serviced by Progressive suspension
  • Wilbur hand build rear shock was also installed and built specially for the V11. 
  • Pirelli Diablo Rosso tires barely broken in, with only 3,500 miles on them. 
  • Agostini Mandello Exhausts. 
  • CRG foldable Brake and Clutch levers. 

With its updated chassis, gearbox, and fuel injection, V11’s are rather more sporty than the European Harley they’re sometimes called.  Probably most Guzzi owners think of an earlier Obi Wan, but McGregor has done a lot of motorcycling in between movie shoots.  A showy autograph would be a nice addition to this fine example.

-donn

Ride Home and Rethink Your Life – 2000 Moto Guzzi V11 Sport
Kawasaki May 26, 2020 posted by

Too Close for Missiles – 1985 Kawasaki GPZ900R

Despite being a generation or so in the rearview mirror, the original GPZ900R Ninja had a lot of firsts for Kawasaki and big sportbikes in general.  Looking complete and mostly original, this example might be a good riding restoration.

1985 Kawasaki GPZ900R Ninja for sale on eBay

Beside being the first Ninja to our shores, the 908cc’s were liquid cooled, had four valves per cylinder, and a counter balance shaft in a compact architecture which kept the center of gravity low.  Four 34mm Keihin carburetors and 11.0:1 compression pushed the Ninja well over the goal line with 115 hp.  Super-high tech hadn’t quite made it to the steel chassis or pretty conventional suspension, but the triple drilled disk brakes were a plus, and linked to the anti-dive system.  At this point the lines are beyond classic, bringing visions of a drag race with an F-14.

Homing in on 28,000 miles, this GPZ900R has been around the world, but on silent more recently.  Appearing quite stock, it’s without damage unexpected for its age.  The owner is upfront about the work required to bring it back in the eBay auction:

Original except exhausts.  Very good condition, does have few nicks and imperfections as per photos Tank has some surface rust inside.  Ran well before I mothballed it around six months ago and now sits on top of my car lift with many others due to space constraints so plan to do the basics to recommission it for daily use.  It will also need a new battery and regulator/rectifier as it didn’t charge battery while riding.  A very easy candidate to turn into a full replica or take to top level.  Stating the obvious but this is same bike used in the Top Gun movie with Tom Cruise. Has become much more in demand since announcement of the new movie.  I know because I had 5 of them and since I started selling I have one left.

The GPZ900R was popular enough to fight off in-house challenges from liter-size successors, and had almost a 20-year run worldwide.  With the delayed opening of the Top Gun re-make, the new owner will have a chance to tidy this one up before donning a flight jacket and heading to a show.  The ask seems a shade more than the condition demands, but the Make Offer button is available.

-donn

Too Close for Missiles – 1985 Kawasaki GPZ900R
Honda November 24, 2019 posted by

Ride like the wind: 1982 Honda CX500 Turbo

In the early 1980s Honda was flexing some serious technological muscles. Sure, they nearly single-handedly created the big bore standard with the CB750 in the 1970s, but the avenues they pursued in the 1980s were a fantastic mix of avant-guarde ideas seeking performance. Imagine the breadth and scope of Honda’s R&D department during this time: From the simple, air cooled single FT500, the wild six cylinder CBX, the sublime V45 Interceptor, the more conventional Hurricane, two strokes like the NSR250 or 400, the narrow angle v-twins, and even the mighty GoldWing touring rig. Every engine configuration was different. And on top of that blows in the amazing CX500 Turbo – the world’s first fully-backed factory Turbo effort. Heady stuff indeed.

1982 Honda CX500 Turbo for sale on eBay

With everything that was going on, Honda leveraged an existing platform for the Turbo. In this case, it was the CX500 series, better known as a cruiser in US parlance, but available in a number of different forms (including sport tourers and sporty models) in world markets. This is the same platform that spawned the GL500 SilverWing, the smaller displacement touring bike. So obviously the bones of the Turbo were mighty flexible. But simply bolting a turbine wheel to the exhaust pipe does not a functional motorcycle make. Honda went all out in the quest to tame the bugaboos lurking in the mythological sphere of boost. Tricks included a tiny IHI turbocharger, liquid cooling (already present in the CX series), computerized fuel injection with knock detection that could retard timing, an improved 4-valve cylinder head, forged pistons, different connecting rods and a beefed up bottom end including a stronger crank. With a reported 82 horsepower, the 80 degree, pushrod V-twin had come of age.

From the seller:
1982 Honda CX 500 Turbo. This is a clean titled original condition vehicle as pictures show. It runs very well with no issues. All lighting and accessories operate as designed. Motorcycle was used for land speed record attempts. 3 official records were set with documentation included. Steering damper, boost gauge, AFR meter are installed. Final drive gearing has been changed for top MPH. Original gearing included. Motorcycle is fully legal and can be ridden normally on the street.Tires were new and motorcycle was running when stored. Fuel has been treated and battery has been maintained. Vehicle is sold as is.

Also included is a spare parts bike, engine and many extra parts.

Did you read the seller’s text? Maybe you want to go back and read it again. Yes, this bike was used for land speed record attempts. In some ways, this is a very strange choice. With a top speed of 125 mph, the stock CX500 Turbo is not going to set the salt alight. There is no indication of what the records might have been, but I would love to see them. No notes on what has changed on the bike other than gearing, a steering damper, and an air/fuel ratio meter. Beyond the text, I spy an extra boost gauge and fuel pressure monitor. None of that is a deal killer in my book, although Honda Turbos are pretty heavy on the handlebars at slower speeds – I’m not certain the damper is necessary if you are riding in a legal manner. This one even comes with a spare parts bike!

We have seen a spate of Turbos on RSBFS as of late, and I’m amazed at how dirt cheap they are for the technology Honda invested in their production. These are rare motorcycles that stand out and really do perform, yet they remain unloved and underappreciated. Prices have come up slightly over the years, but we are still near the bottom if you are in the market for something worth holding on to. Check it out here – and contemplate if you need to pick up yet another hobby, such as land speed record collecting. Good Luck!!

MI

Ride like the wind: 1982 Honda CX500 Turbo