Posts by tag: parallel twin

Yamaha July 7, 2017 posted by

Two-Stroke Hooligan: Cali-Titled 1989 Yamaha TDR250 for Sale

This bike got me excited because Practical Sportbikes has been doing a project Yamaha TDR250 over the past few months, and up until I saw it, I had no idea the bike even existed. You say it's not a sportbike? I say if it's in Practical Sportbikes, it qualifies! So what exactly is a TDR250? Well basically it's the parallel-twin from the TZR250 in a supermoto-style machine, with different tuning to suit the bike's new mission.

Weight was right in line with the TZR at just a shade north of 300lbs dry, and the claimed 50hp is pretty close as well, helped by the same Yamaha Power Valve System. The supermoto set up means you'd probably lose out to a TZR on track, but the TDR would probably be faster just about everywhere else. Certainly, the riding position would be a damn sight more comfortable than the racer-crouch required for the TZR...

This particular example has obviously been enthusiast-owned, and the listing includes details of recent engine work, updates to the suspension, wheels and brakes, although he doesn't mention where he got that banana swingarm. It's not really necessary here with the undertail pipes but it does look pretty cool. Maybe it came from the RS250 that donated the rear wheel? This TDR is not perfectly original or in pristine cosmetic condition, so it won't be of much interest to anyone looking for a museum-quality collectible, but these really aren't all that valuable yet anyway in the rest of the world. The main thing driving the price for this one is likely the novelty and that very desirable California title.

 

From the original eBay listing: Cali-titled 1989 Yamaha TDR250 for Sale

Engine is parallel twin TDR250 (TZ250)case induction 2-stroke 50+ hp.6-speed

  • Low mile bottom end (under 5k mi) pressure tested, excellent condition.
  • New pistons, rings, clutch plates, petcock, YPVS bushings, gaskets.
  • RZ500 cylinder barrels-standard bore (newly run in, just over 50 miles presently on new hone).
  • Relocated YPVS actuator to center RZ500 position with stock housing/adjustment.
  • RZ500 kick start arm
  • TDR250 head tuned by Stan Stephens in the UK.
  • Standard exhaust with black chrome powder coated guards and custom spigot covers.
  • Pre-mix injector pump installed,adjusted and in good working order,but currently 40:1 Motul racing synthetic, premixed as a personal preference.Easy to mix in and good insurance.

Chassis

  • Aprilia RS250 road racer front and rear wheels and complete rear Brembo brake caliper/mount.
  • GSX-R K6"limited" UD forks with black nitrided sliders/anodized caps and tuned springs
  • Machined and heat powder coated K6 Radial front brake caliper.
  • Custom Goodridge steel braided brake lines front and rear.
  • New non O-Ring gold chain (less drag).
  • New front and rear sealed wheel bearings.
  • New Michelin Pilots
  • Vintage Pro -Taper bars
  • Brembo front master cylinder.
  • NC30 tail light and rear fascia.
  • Extensive powder costing.
  • New yellow stock seat cover with Yamaha labeling included.
  • 2 spare rear sprockets (1 aluminum,1 stock steel) included.
  • Full work shop manual (copy) with original sales brochure included.

Body is standard in good condition as shown, showing minor decal issues (pictured) and some repairs on interiors from an older repaint. Rider quality. Bicycle speedometer is only fairly accurate but legal. Turn signals aren't blinking. (I think the led fronts need bulb style) Finger actuation only for now! Suspension mods have stabilized high speed handling without sacrificing all important "flick ability".

Bikes cylinders are freshly broken in, first kick every time, running great and ever improving, very strong pull with improved head by Stan Stephens.Perfect stock jetting, no plug fouling ever and runs cool, never past just center of coolant gauge even when in powerbaband getting flogged, clutch plates and synthetic oil for perfect "butter"shifting with no slippage. Quiet stock exhaust allows you to rev it with out to much undesirable attention. NO DISAPPOINTMENTS!

Bike is for sale locally, so l reserve option to end at anytime BEFORE reserve is met. Super Rare and desirable model in the U.S.Very collectible and appreciating. Please ask any and all questions, answered ASAP! Japanese and Canadian market bikes, never imported to the states, a lot have ended up in the United Kingdom where new parts and spares are readily available.

Bidding is up north of $5,000 with just about 48 hours left on the auction. In one of its home markets, I doubt it'd ever make near what it looks like it will sell for here, but I bet two-stroke junkies are leaping at the opportunity to pick up this very funky little machine, especially in California where little smokers have a pretty rabid following and road-legal grey market bikes from this era are hard to come by.

-tad

Two-Stroke Hooligan: Cali-Titled 1989 Yamaha TDR250 for Sale
Kawasaki June 17, 2017 posted by

Featured Listing: 1989 Kawasaki KR-1R!

It may take you a little bit to pry yourself away from this first picture. It's OK, I'll wait a moment. Yes, that is an honest-to-God, freaking *original* Kawasaki KR-1R. The rarest of the rare of the quarter-liter smoking set has arrived, and this is your chance (and likely your only chance) to score one of these "what lies at the end of the rainbow" sort of machines. KR-1 examples are few and far between these days. The "R" spec - as it does with all other mega cool bikes with sporting intent - kicks things up a notch into crazy uber collectable mode. With KR-1 models coming across our pages so infrequently, it should be no surprise that the one and only KR-1R seen here on RSBFS was over 6 years ago (and based in England). Today, we are thrilled to bring you what must be one of only a handful of KR-1Rs that live here in the US - and this one is titled for street use.

You might wonder what's the big deal about the KR-1R. Visually, it differs little from the lesser KR bikes. They all share the same parallel twin, reed valve inducted 250cc two stroke power plant. This motor, while not the trendy v-twin variety, has the distinction of being the most powerful of the 250cc smoking set. When it comes to bragging rights, the Kawasaki hits hard. Fun fact: A KR-1R holds the speed record at Bonneville for 250cc production motorcycles. The KR-1S is slightly different from a base KR-1 by color scheme and wheels. There are also bits that you cannot easily see, such as improved suspension components and chassis modifications (all KR models have an aluminum chassis, naturally). Take the KR-1S, add larger carbs for even more power, bolt on a close ratio gearbox and stronger clutch springs and you have one of the approximately 180 KR-1R Kawasakis in the world. It goes without saying that the KR-1R has a unique paint job with its nomenclature very, very clearly stated. All "R" model bikes were domestic (Japan) only machines.

From the seller:
The bike came from a Kawasaki collector in Japan. Motor is all stock. Stock carbs,
stock airbox, stock heads, ect all confirmed OEM Kawasaki. Fairings 100% OEM.
Windshield appears to be OEM. Two Keys.

Previous collector has cosmetically customized this KR-1R with Kawasaki OEM green
front fender, Beet rear sets and Beet exhaust and mufflers. Some suspension
components have been polished.

The bike has been professionally resprayed. Being a Kawasaki dealer with ties to
Japan, I was able to source OEM decals and correct paint codes. The paint job was done correctly. You may notice, The lower air vent was not blacked in like you see other KR-1R's on the internet. The green and black paint lays over the air vent with a 50/50 split like it came from the factory.

All three brake calipers were sent to Powerhouse in England for complete
refurbishment. Powder coated, new seals, pistons, pads, ect. because they were old
looking. I have all the original brake parts that go with the bike.

More from the seller:
Bike has newish tires, Dunlop GPR's, new brake fluid, new coolant, new oil, new
battery. Bike runs flawless at sea level and a little rich at my 4500ft elevation.
Bikes runs perfectly.

Bike comes with Utah title and is titled as a street bike for road use. I am looking
for offers over $20K - highest offer wins the bike. Potential buyers can contact me via email with offers. Only 180 bikes were made and this one is a very low serial number. Complete Serial number won't be published.

Price: Accepting offers over $20,000

Deadline: July 1, 2017

Contact: rmurangemasters@aol.com

If some of the pictures look familiar, you will notice this is indeed the same Utah collector (and Kawasaki dealer) that recently thinned out a number of exotic machines (some purchased by RSBFS readers!). Gary states that this KR-1R was a crown jewel in his collection, but it is time to move on. There are A LOT of pictures, and I've included as many as possible. If you are serious buyer and there is something that you want to see, ping Gary for more details. Word from our readers is that Gary is great to work with and the purchased hardware shows up looking as advertised. That is good to know, especially when dealing with what may be the only US-based KR-1R with a street title.

Values are hard to come by when so few examples change hands, but I can assure you that $20k is a bottom dollar bargain number when it comes to a clean and sorted KR-1R (if you can even find one). This bike looks fantastic, and is one of the more rare models you might hope to see on RSBFS this year (or the next). So if you have a spare kidney laying around that you're not really using, NOW is the time to reach out to Gary (rmurangemasters@aol.com) and make a deal. Good Luck!!

Featured Listing: 1989 Kawasaki KR-1R!
Yamaha May 22, 2017 posted by

Vintage Racer: 1970 Yamaha TR2 350 for Sale

Introduced in the late 1960s as an over-the-counter racebike, Yamaha's TR2 was based on the road-going R3, and was extremely popular among privateer racers of the period. At just 253lbs dry, the bike was lightweight and, with a nearly square 61mm x 59.6mm bore and stroke that worked out to 348cc, the little air-cooled, two-stroke parallel-twin put a claimed 55hp through a five-speed gearbox.

The huge drum brakes at both ends seen here were difficult to adjust correctly and are obviously not as effective as discs that would have likely been fitted to period racers as soon as they could get their hands on a set, but look very shiny!

From the original eBay listing: 1970 Yamaha TR2 350 for Sale

Restored to an excellent condition. Matching numbers. This very rare racebike have been completely overhauled with a lot of brand new parts as new cylinder barrels and pistons and an overhauled crankshaft, new Koni shock dampers, tires etc.

Transport can be arranged to most EU countries as I can deliver it by myself for actual costs for petrol and ferry tickets and, depending of distance, overnight costs at a cheap hotel. Transport outside Europe must be arranged by the buyer himself. I will make it ready for shipping with a crate and good wrapping.

Currently located in Sweden, this bike is in extremely nice condition, considering the age and the hard life most racebikes have endured, and appears ready to run or for display. Starting bid is $9,900 with no takers and very little time left on the auction, so move fast if you're living room needs redecorating!

-tad

Vintage Racer: 1970 Yamaha TR2 350 for Sale
Laverda May 8, 2017 posted by

1999 Laverda 750S with under 1,000 miles !

In the late 1990's Laverda was re-incarnating their past glory and made some of their best big upright twins and triples, before being purchased and then shuttered by Aprilia.  Presented here is a rare yellow and very late 750S, sparkling with only 994 miles.  Could be the nearest thing to a brand new Laverda out there.

1999 Laverda 750S for sale on eBay

 

The basis of the 750S is the company's signature twin, but updated with 4 valves per cylinder, a balance shaft, fresh air intakes and Weber fuel injection.  The powerplant inspired reviewers to put the excellent twin-spar alloy frame through its paces, and the premium Paoli suspension was worthy.  The company was known for not scrimping on components, as the gold line Brembo brakes and Marchesini wheels testify.  The fairing favors the solo rider with a snug seat and step up for the pillion, and the upturn of the dual exhausts is delayed to accomodate the rather rear-set pegs.

 

Evidently on display almost since new, this 750S still needs its break-in miles.  You'll have to lift the seat to add fuel, since the 750S was an early convert to underseat fuel and high airbox.  Finishes are unmarked and somehow the bike escaped the garage elves that usually plot a tipover or dent.  The seller relates that he is the second owner, and keeps it simple in the eBay auction:

1999 Laverada 750S with 994 original miles (1598 Kilometers) in like new condition no damage ever. Temperature and humidity controlled environment, on battery tender and covered. Starts and runs strong. Everything works, no leaks. Pictures speak for themselves.

 

At the time, European manufacturers were reeling from eastern competition, and couldn't hope to turn the clocks back.  Like many, the Laverda response was reverential to past glories, and a competent if not class-winning performer.  Great design and top components make for a worthwhile experience, though at this point one would have to be mindful of the parts availability question.  But if you have the bug for a classic Italian, why not pick one that looks showroom new ?

-donn

1999 Laverda 750S with under 1,000 miles !
Yamaha April 26, 2017 posted by

Head on Backwards: 1989 Yamaha TZR250 3MA for Sale

Competition between the Japanese manufacturers in the 250cc sportbike class was fierce, with each trying for some small advantage in terms of performance, given the limited displacement and government-mandated power cap. On paper, they all seem to follow a pretty standard template: a compact two-stroke twin cylinder engine, power-valves of one sort or another, and an aluminum beam frame. But each manufacturer went their own way trying to maximize performance within those fairly narrow parameters. While development eventually led to the NSR, RGV, and TZR all using v-twins, there were a few experiments along the way, and today's TZR250 3MA represents an interesting attempt to solve the packaging issues inherent in two-stroke design.

Obviously, two-stroke engines are very compact by nature: with no overhead-valves or cams, they're short, simple, and very light. But while the exhaust expansion chambers required for a performance two-stroke may not weigh all that much, their bulging shape takes up valuable real estate in a motorcycle. The famous "gull arm" swingarms of the period were one solution to the problem and allowed the chambers to tuck in close to the centerline of the bike to maximize cornering clearance. But the 3MA version of the TZR250 went a different route by reversing the cylinder head so that the carburetors were at the front, with the exhausts exiting directly out the rear of the bike instead of curving around the sides or underneath. The bulbous expansion chambers fitted neatly into the seat, with the exhaust exiting through the tail.

The design was eventually replaced by the v-twin 3XV version introduced in 1991 after just two years, so the experiment can be considered a bit of a failure. But there's nothing inherently wrong with the idea, and this is one of my favorite bikes of the era, at least in terms of looks and the weird factor: it's my deep and not-so-secret shame that I haven't ridden one yet, but here's hoping that the stars will align and I'll be able to find a decent California-titled example when the time is right. Scouting around the message boards, it seems that the bike's reputation for poor reliability is exaggerated but, as these were not often seen anywhere outside of Japan, parts availability will prove difficult.

From the original eBay listing:  1989 Yamaha TZR250 3MA for Sale

The parallel twin reverse cylinder version. The bike is imported from Japan. Not registered yet in the U.S. This bike is sold without title. (NO TITLE) Start engine. Original Cowl. New Aftermarket Front fork innre tubes. Dragging brakes. Need to change tires (flat tire) and a battery. Some scratches and rust, so look carefully all pictures and video. This motorcycle is 28 years ago. Sold as is.

11271km (7003mile) LOW MILE. Sold as is with NO warranty NO refunds NO return. Buyer responsible for vehicle pick-up or shipping to your location. (ITEM AT CARSON NOW)

There's also a helpful clip of the bike starting, running, and revving. The seller's English is a bit limited, but it looks like the bike runs from the video and just needs a little TLC: a brake rebuild, new tires, and some minor cosmetic issues. Normally nothing you'd find shocking in a 28 year old motorcycle, but make sure you're prepared to troll eBay and use Google Translate to track down parts to keep this running. It's certainly not pristine and it's not the cleanest example we've featured on this site, but if the price is right, it won't take all that much to get this one on the road. Obviously, the usual titling issues apply, so I doubt this bike will remain in Southern California.

-tad

Head on Backwards: 1989 Yamaha TZR250 3MA for Sale
Yamaha February 6, 2017 posted by

Restored Replica: 1984 Yamaha RZ350 for Sale

If you live here in the US and have a hankering for a two-stroke sportbike the choices, assuming you don't want to monkey about with a grey-market import, are few and far between. 70's two-strokes were relatively light and nimble, but still limited by the suspension and frame technology of the time, and by the mid-1980s, they'd been legislated out of existence, leaving this Yamaha RZ350 to make a final stand against the inexorable tide of four-stroke motorcycles. With blacked-out engine and frame, that striking black and yellow "bumblebee" paint, bikini fairing, and the "Kenny Roberts" signature, the RZ350 represents the very last of the old guard before "sportbikes" were codified into the narrow, very focused form we see in today's motorcycles.

Produced for a very short period between 1984 and 1985, the RZ350 was a follow up to Yamaha's RD bikes. It was powered by a 347cc two-stroke parallel-twin that added liquid-cooling to the successful formula, along with the "Yamaha Power Valve System" or "YPVS." Powerband is typically two-stroke-y, even with the benefit of the YPVS power-valve, but the additional displacement helps some, compared to the all-or-nothing 250s. Weighing in at just 370 pounds or so with gas in the tank, it will still shake a leg on spirited backroad rides and can surprise modern machines, although tire choices for the skinny 18" wheels will limit ultimate grip...

The seller claims that the bike has been restored from top to bottom, including a full engine rebuild, and it also includes a full-fairing that appears to have been a popular period accessory, considering the number of RZ350s fitted with them that come up for sale.

From the original eBay listing: 1984 Yamaha RZ350 Kenny Roberts Replica for Sale

Here is a beautiful restored 1984 RZ350 Kenny Roberts. The numbers are matching with a clear title in my name. This bike has a low production number of 223.  I have owned this bike for 6 years and have hardly rode it. It sat getting looks more than riding so its time to turn it loose. This bike has been completely restored. The engine has been professionally rebuilt from top to bottom. It runs and rides beautiful. There is less than 500 miles on this bike since it has been redone. As you can see it has a full fairing kit. The engine is stock with DG pipes and mild carb jetting. This bike is a real head turner where ever I have taken it. Probably the nicest RZ350 you will come across. Take a look at the pictures.

Bidding is very active on this one, and up to just over $7,000 with about 24 hours left on the auction. It's certainly possible to find an RZ350 for less but, unless you stumble across some pristine, low-mileage museum-piece that will probably need a full restoration if you plan to ride it regularly, you're unlikely to find one nicer. Well-reviewed when new and very popular now, the RZ350 neatly straddles the modern and classic eras, with clearly vintage sportbike style, light weight, and a liquid-cooled two-stroke punch. If you're looking for US-legal two-stroke performance, this is just about the only game in town, and this example looks to be one of the nicest around.

-tad

Restored Replica: 1984 Yamaha RZ350 for Sale