Posts by tag: Two Stroke

Honda November 26, 2015 posted by

Have Prices Peaked? Very Clean 1990 Honda NSR 250 MC21 for Sale

1990 Honda NSR250R MC21 R Side

Although the Honda NSR two-stroke sportbikes were by no means "starter bikes" and were very high-performing motorcycles, they were still relatively affordable and often bought by riders not flush enough to afford the taxes on bigger bikes. Basically: young hooligans bought them. Because of this, nice examples are pretty thin on the ground in their home markets.

The recent flood of affordable "grey market" Japanese two-strokes here in the US offers up our first real opportunity to sample bikes that still get the British motorcycle press all dewy-eyed and nostalgic. Unfortunately, caveat emptor is the order of the day, since many of these little nippers were thoroughly thrashed when new.

1990 Honda NSR250R MC21 L Side

The NSR250R featured a 90° liquid-cooled 249cc v-twin backed up by a six-speed cassette gearbox and, from the factory, these were limited to 45hp by Japanese regulations. But there is plenty of additional power waiting to be unleashed by a US owner and, with a sub-300 lb dry weight, this could certainly embarrass many bigger sportbikes in anything but a straight-line race.

This MC21 wasn't just a continuation of the earlier MC18, it was a ground-up redesign and featured a banana or "gull-arm" swingarm, PGMIII electronically-controlled carburetors, and 17" wheels at both ends, making tire choice a bit easier today. Although the bike used carburetors, the PGM system created a three-dimensional ignition map for each cylinder, based on throttle-position, revs, and gear.

1990 Honda NSR250R MC21 Gauges

From the original eBay listing: 1990 Honda NSR250R MC21 for Sale

I am selling my 1990 Honda NSR 250R MC-21 two stroke motorcycle. For those unfamiliar with this bike, it is the street version of Honda's legendary 250cc Moto GP race bike, the NSR250. Despite it's small displacement, this is not a beginner's motorcycle! The two stroke engine is very powerful for its size and the bike weighs in at less than 300lbs. On a twisty road, it will leave larger displacement bikes in the rear view mirror. Plus the sound, feel, and power delivery of the two  stroke engine is unlike any four stroke motorcycle. The MC-21 model was brand new in 1990, and was a huge step up from the earlier MC-16 and MC-18 models. In addition to new body work and the super sexy gull-arm swingarm design, the MC-21 utilized the PGMIII ECU from the RC30 superbike, giving it true 3D ignition. Suspension was upgraded and the rear wheel diameter was decreased from 18" to 17" to fit the most advanced tires. The bike is in overall great condition, with 11,117km (<7,000 miles) on the clock. There are a few minor scratches on the bodywork (see pictures) but no other significant damage. The bike kick starts from cold on the first try and runs/revs very smoothly.

Honda never sold this bike in the U.S. as the EPA banned most two stroke powered road vehicles in the '70's. As such, they are extremely rare. There are a handful of these bikes in the U.S., some here legally, and others illegally. In general, two strokes less than 25 years old are still banned by the EPA, so use caution if you are looking at a similar bike that is newer than 1990. This bike was imported legally by myself directly from Japan, and I have all the US Customs paperwork to verify its legality. I also have a clean and clear Virginia title in my name, which has an 11 digit VIN that matches the bike's frame number.

Photos: The first seven photos show the bike from various angles, front & rear tires, the speedo/odometer in km. The remaining photos show the following marks & scratches: left front fairing, right lower fairing, right upper fairing, left lower fairing, right seat fairing, left seat fairing, and right handle bar.

1990 Honda NSR250R MC21 Front Fairing

This bike isn't in showroom condition, but looks very clean and appears to start easily and run well from the included video. There's a bit of surface rust on some of the fasteners and some scuffs at the edges of the bodywork, but nothing jumps out that should scare off potential buyers.

There are just four days left on this auction, with no takers yet at the starting bid of $5,000. Considering these were virtually unobtainable just a few years ago, has the market been flooded?


1990 Honda NSR250R MC21 Rear

Have Prices Peaked? Very Clean 1990 Honda NSR 250 MC21 for Sale
Suzuki November 17, 2015 posted by

Baby Gamma: 1985 Suzuki RG250 for Sale

1985 Suzuki RG250 R Side FrontAlthough it lacks the lean and crisp looks and GP-specification of the later RGV250, the Suzuki RG250Γ Gamma makes up for it with classic styling that closely resembles the bigger RG500. The paint scheme on this example is very subdued and the low, shorty pipes are strangely modern, making for a surprisingly contemporary look considering this bike is more than thirty years old.

1985 Suzuki RG250 TankManufactured from 1983-1987 and weighing in at just 286lbs dry with a lightweight aluminum frame, anti-dive front forks, and a pair of tiny front discs, the RG250 wasn't some primitive, stripped-out learner. The 247cc engine was a water-cooled parallel twin with perfectly square bore and stroke and featured Suzuki's AEC or "Automatic Exhaust Control" to beef up the midrange. This sophisticated engine was backed by a six-speed gearbox, something that was still fairly uncommon in the mid-1980s.

1985 Suzuki RG250 CockpitOriginally restricted to just 45hp for the Japanese market, the new owner may well want to get this little Gamma modified to unleash its full potential, but that should be a far easier task on this early example than it would be on a later bike.

From the original eBay listing: 1985 Suzuki RG250 for Sale

Just imported from Japan through U.S. Customs, this 1985 Suzuki RG-250 comes with a clean and clear street legal title ready to be transferred into your name in your state.

Your new RG-250 is showing just 6436 original miles (10,358 kilometers) on the odometer so it is a low mileage bike. The original bodywork is intact with original paint and the original exhaust is in good condition. This is a 30 year old motorcycle so it isn't perfect; you have to expect paint wear and the normal scratches and chips and cracks on the bar ends and lever ends and fairing mount points; please see the right and left lower fairing scratches as an example. Surprisingly the foot pegs and gear change/brake levers are nice with the only scuff I can find being on the front brake lever and front turn signal. And those are too small to see in the pictures.

I suspect this was a well cared for and inside stored bike as the windshield is clear and bright and the paint presents well and the seat is in good condition. The gas tank does has one very small ding on the right side of the tank at the top (barely visible in the pics). The tires are Dunlops with good tread but the front tire should be replaced for riding. The seat is in good condition with no scuffs or tears anywhere. The signals are original and the exhaust is original and in good condition which is rare for a 30 year old used motorcycle.

Here's your chance to own a titled Japan market only Suzuki RG250 but don't let this one pass you by. Someone is going to own this bike - why not you?

I can get great shipping rates (anywhere in California for $300 as an example) so don't let the cost of shipping keep you from owning this collectible Japanese streetbike. This rare two stroke is not a grey market import, it has been imported through proper legal channels and is already titled in the USA and ready to be transferred into your name just like any other vehicle purchase and title transfer. You will not need my US Customs documents and EPA documents but I will include them in the sale of this bike so you have documentation your RG was legally imported.

The seller also includes a clip of the bike running and moving under its own power.

1985 Suzuki RG250 L Side RearI'm not sure if this is the original paint, but overall the bike looks to be in very decent condition and in far better shape than many of the recent two-stroke imports we've seen, with just some minor scuffing and general wear. While the skinny tires and 18" wheels limit tire choice and track-day antics, the "baby RG500" looks are classic and if you're able to register this where you live, this would make a fun back road bike and a great conversation piece at your local hang out.


1985 Suzuki RG250 R Side

Baby Gamma: 1985 Suzuki RG250 for Sale
Suzuki November 9, 2015 posted by

Featured Listing – 1985 Suzuki RG500 for sale in Australia

Update 11.9.2015: Back on the market and with a lower opening bid. Good luck to buyers and seller. -dc

20150910a 1985 suzuki rg500 left

As new, unrestored, low miles, mint - we have all seen these phrases accompanying motorcycle classifieds.  Rarely does a factory GP replica survive 30 years with only 3,200 km. and without a mark.  The low number of owners might account for how this RG500 survived the decades in such condition.

20150910a 1985 suzuki rg500 right side panel detail

Inspired by their GP successes in the late 1970's and early 80's, Suzuki introduced the RG500 as a street machine for the 1985 model year.  Though production ended only three years late due ever-tightening emissions regulations, the 498cc, 93 hp machine is the stuff of legend.  Developed for racing, the square four two-stroke is a powerhouse, twin crankshafts with gears driving the primary shaft.  Despite Suzuki's efforts with its Automatic Exhaust Control, it's a peaky engine, starting to really scream as you cross the 6,000 rpm mark.

20150910a 1985 suzuki rg500 binnacle

20150910a 1985 suzuki rg500 left engine detail

Around 350 lbs., the light weight helps make it a handler, assisted by staggered 16-inch front and 17-inch rear wheels, and Full Floater rear suspension.  The aluminum box frame is welded to cast steering head and swingarm mounts which accommodate the footpegs.  There are four individual exhaust expansion chambers and mufflers, two under the seat and two next to the swingarm.  Dual 260mm discs ride floating buttons up front, and a 210mm disc in back.

20150910a 1985 suzuki rg500 right exhaust detail

20150910a 1985 suzuki rg500 left front wheel

Seeming to be recently rolled out of a 1985 showroom, there's no evidence of wear or corrosion anywhere on this RG500.  The 3rd owner states in the eBay auction:


20150910a 1985 suzuki rg500 right fairing

As close as could be to a 500cc GP Gamma for the road, there are accounts of Kevin Schwantz riding an RG500 from a English dealership ( after mechanics changed wheels, forks, and carbs ) in the 1986 championship TT at Assen, placing 2nd, and returning the bike to the showroom the next week.  Though an example like this seems to belong under glass on a fairly high pedestal, you could go through it and prepare for vintage racing, or title and register it for the road.  After transferring what appears will be pretty serious funds, the choice will be a great privilege.

20150910a 1985 suzuki rg500 right


Featured Listing – 1985 Suzuki RG500 for sale in Australia
Yamaha November 8, 2015 posted by

Firsts, Lasts – 1984 Yamaha RZ350

At least in the USA, the two-stroke engine was winding down in the mid-1980's, as the State of California ratcheted down emissions, and the Federal Government applied the fleet concept to motor vehicle manufacturer's emissions.  The final few years were a hodgepodge of catalysts and evaporative emissions canisters, but the sweet handling bikes were quite memorable in their light weight and peaky powerplants.

20151108 1984 yamaha rz350 left

1984 Yamaha RZ350 for sale on eBay

20151108 1984 yamaha rz350 right front

20151108 1984 yamaha rz350 right rear

One of the first perimeter frame motorcycles, the RZ350 has no center backbone, the frame tubes follow and support the bottom of the fuel tank as they progress back toward the swingarm pickup points.  The 347cc engine is cradled in between the bottom tubes and generates 60 hp.  At the small end of the Yamaha line-up,  the RZ350 had plenty beside the 9500 rpm redline to interest experienced riders.  Yamaha's Power Valve System has motorized control of the exhaust port height, extending the torque band substantially.  Fairly conventional front suspension with monoshock rear.  Brakes are triple 265mm disks, and tires are the same front and rear - 4.10 x 18.  But the low weight is what helps all those features work better, with half fuel the bike weighs just 371 lbs.

20151108 1984 yamaha rz350 binnacle

20151108 1984 yamaha rz350 left engine

30 years old with just over 2,100 miles, this survivor is in amazing shape.  Original turn signals are still there, along with plastic trim and reflectors on the radiator, and filler panels below the front of the fuel tank.  The single seat looks great, though the dual seat fairing is also included.  From the eBay auction:

What an incredible time capsule! Runs flawlessly. Look at close up of carburetors, still has the factory idle screw setting.
I have only owned this bike a short time but I did have the brakes flushed, tires changed and cable lubed. I have decided not to
ride this bike because the mileage IS so incredibly low (2135).
I have the original tires (pictured) and I have the dual seat cover (pictured). The only flaws are tiny and there are two of them on the tank (pictured).
Inside the tank is a baffle, it has slight rust on it. This one has the red frame! Not sure how many came with the red frame.
I believe even though it does not have the signature on the cowl it is still the Kenny Roberts special RZ.

20151108 1984 yamaha rz350 right front wheel

20151108 1984 yamaha rz350 right rear wheel

Identical to the Kenny Roberts signature edition in every way except the paint ( and signature ), the red, white and blue model has its own appeal.  At this age new caliper seals and brake lines would have to be considered, as would checking the wheel and steering head bearings.  But if you were inclined to continue this beauty's modeling career, they could stay as they are...


Firsts, Lasts – 1984 Yamaha RZ350
Aprilia November 4, 2015 posted by

The Perfect Holiday Stocking-Stuffer: 1999 Aprilia RS50 for Sale

1999 Aprilia RS50 R Front

In spite of its tiny displacement, by US standards at least, the Aprilia RS250 is not a toy. The RS50 on the other hand? Possibly a toy. But a very serious toy: this may have the displacement of a scooter and may not even require a motorcycle license endorsement in some states, but it's a real motorcycle, in miniature.

1999 Aprilia RS50 Dash

From twenty feet away, you could easily be forgiven for mistaking this for it's larger, 250cc sibling, or even a sports 600 if you're not into Aprilias. With disc brakes front and rear, a set of 40mm upside-down forks in the front, complete instrumentation, and a six-speed gearbox, it's got all the features of a genuine sportbike.

1999 Aprilia RS50 R Rear

Powered by a 49.7cc two-stroke single, the RS50 does offer pretty limited straight-line performance. Originally, these were generally restricted to just 30mph, but de-restricted, they're good for an honest 50 or 60mph, which is plenty fast for something powered by an engine the size of your average leaf-blower...

From the original eBay listing: 1999 Aprilia RS50 for Sale

Condition is like new, purchased and titled in Idaho, shipped by original dealer to California.

After delivery, started once and rode it for 2 miles to make sure everything worked. Then put in office behind plate glass as display/decoration with several other Ducati, Triumph and Moto Guzzi motorcycles.

Never sat on or started since. Sold as is with no warranty what so ever.

Registration has expired. Clean title of course

Before display, battery were removed, fuel stabilizer poured in tank, carburetor was "drained" by turning the pet cock to off position and run the fuel dry.

Indoor all its life, behind plate glass and never disturbed.

Local buyer preferred, Shipping is to be arranged by non local buyer to pick up and crate the motorcycle.

Photos were taken this afternoon (10-31-2015), after removal from office and transported to owner's garage. Check the photos carefully, tires still have unworn nubs, all control show NO wears. This is about as new as a 2 stroke fly weight pocket rocket you can still buy today.

1999 Aprilia RS50 Grip

Weighing in at a svelte 197lbs dry, this should be very easy to load into a pick up or onto a trailer to take to the track. And track this you should: with a top speed of 65mph with the help of a tailwind, road use is going to be limited, to say the least. But people race these in MiniGP classes often held on kart tracks against similar bikes from Honda, Derbi, Yamaha, and Suzuki. And if road use is what you want, you can certainly drop in a 70 or 80cc kit to make yourself and extra... couple horsepower. But given the 8hp or so the bike has to begin with, and extra two or three ponies is nothing to sneeze at.

1999 Aprilia RS50 Seat

The starting bid of $3,279.00 has no takers as yet, with 3 days left on the auction. Certainly, considering what Honda CT70s are going for these days, that seems like a pretty good deal and appears to be in perfect condition, with just 9 miles on the odometer. Nostalgia aside, that vintage machine doesn't offer nearly the sex appeal or opportunity for track-day trouble of this little bike.


1999 Aprilia RS50 L Front

The Perfect Holiday Stocking-Stuffer: 1999 Aprilia RS50 for Sale
Suzuki October 31, 2015 posted by

Quarter-Liter Gamma: 1988 Suzuki RGV250Γ SP VJ21 for Sale

1988 Suzuki RGV250 SP R Side

Unfortunately, today's tasty little two-stroke Suzuki RGV250Γ SP is short on photographs. It's another of the raft of recent imports from Japan, and details are scarce, but the price may have you reaching for your mouse anyway.

The RGV250Γ replaced the RG250 in 1988, swapping out that bike's parallel-twin for a more modern v-twin that eventually found its way into the Aprilia RS250, although Aprilia made a number of changes to their version. On paper, the new baby Gamma looked very much like it's rivals from Honda and Yamaha, like they were all peeking at each others' essays during final exams...

1988 Suzuki RGV250 SP Dash

Nestled in between the spars of a lightweight, aluminum beam frame, the little 249cc, 90° v-twin made about 55hp and was mated to a six-speed gearbox. Front wheel was 17" although the rear was a slightly inconvenient 18" in size. This bike is claimed to be an SP or "Sport Production" model and should also feature adjustable suspension front and rear.

The headlight on the RGV is mounted flush in the fairing and looks less like an afterthought compared to something like the Honda RS250R and I particularly like the text on the tail section: considering the GSX-R "Slingshot" bikes were named for their carburetors, I'm guessing this is simply a marketing link to those models as opposed to a reference to any mechanical specification. It's also good to know this is a Real Sprinter bike, not just some fake knock-off...

From the original eBay listing: 1988 Suzuki RGV250Γ SP VJ21 for Sale

In 1988 Suzuki released two stroke V twin racer replica.

At that era, Japanese economy was too good, so they released

new model more often than every year.

This is SP model, so it has adjustable front and rear suspension, 

close ratio 6 speed transmission and solo seat cover.

Ran when I transport from Tokyo to Yokohama.

I just received it and not check yet.

I'll take pics and inspect it and add info.

13977 Km = 8714 miles

Was very clean when it left Japan but I found a scratch on right side cowl.

Other than that, this is very clean. Still shining.

Had no leak but found fuel under petcock.

Please see pics.

Real SP model are very rare, I should start with $5000... too late..

1988 Suzuki RGV250 SP Clean

It's worth noting that the shot of the left side does show fluids spilled down the frame which have been helpfully cleaned off in the close up. The question is why you'd photograph a bike you plan to sell before cleaning it. Really this listing could use a few more shots, but I think we've got enough to tell that this is a decent, well-used example of a rare, collectible model: the paint is shiny and the plastics are scuffed in places, but not cracked, and all the important bits that make the bike stop and go appear to be in good shape.

Bidding is currently up just north of $4,000 with a little more than 24 hours left on the auction. If you're a collector, this probably needs a good bit of work to get it into shape, but everything's there and a fresh set of fasteners and a touch up of some brackets will do wonders for the appearance. If you're a rider, well the cosmetic wear and tear shouldn't bother you too much. Assuming the bike runs as advertised, this could be a good buy.


1988 Suzuki RGV250 SP L Side

Quarter-Liter Gamma: 1988 Suzuki RGV250Γ SP VJ21 for Sale