Yamaha XS1100SF Special

21 Мар 2015 | Author: | Комментарии к записи Yamaha XS1100SF Special отключены
Yamaha XS 1100

Subtle refinements prepare Eleven for 1980

Forget the There’s no V-Four. No enlarged Yamaha’s flagship, For the third in a row, is the XS Eleven.

And the most you can buy is still the Special, with stepped seat, handlebars would look appropriate on the of of a cowboy Cadillac, and the same styling that has made Specials a success story.

have been changes to the Eleven, both mechanical and Are the changes improvements? The answer on the point of view.

Take the for instance. The big dohc inline stays essentially the same. and … remain 71.5 x There’s still inductive ignition, still with a advance and with the same

The compression ratio has been to 9.0:1, the pistons and head been changed so the combustion is different, the better to meet stringent 1980 emission In addition, the intake valve diameter has been increased 36mm to 38mm and the exhaust size has gone from to 32mm. Given the same cam and profile, that should for more horsepower, but there’s to it than that.

Those 34mm Mikuni constant carbs are jetted differently year. There’s no adjustment on the jet. The needle jet is held in the position.

Main jets, were a #137.5 in all carbs are now a #115 in carbs two and three and a in the end carbs.

No longer is there a starter shaft sprouting the right side of the Eleven’s transmission. Now there’s a seal the hole. The Hy-Vo primary chain is the same and so are the gear and the final drive.

Because the 16-in. rear of the Special has a smaller outside than the 17-in. tire of the Eleven, the road speeds in the are noticeably lower.

Most of the that make the 1980 different from the 1979 could be called cosmetic. than have a chromed grab bar behind the seat, the new has a cast aluminum rail around behind the revised Under the rear of the rail is a new tucked in tightly behind the

The rider’s portion of the stepped is supposed to be two-thirds of an inch in 1980, but we measured a full difference in seat height last year’s Special and year’s test bike, at a of 31 in. Oh yes, that taillight include the license plate which is now, located at the end of the fender where the license hang.

Second most change to the Special concerns the new discs. Last year were triple solid The fad has been to have drilled supposedly to improve wet weather and remove grit from the to reduce disc grooving, it never seemed to make any This year the hot set-up is to the drilled holes placed in an pattern or at a curve or an angle.

The Special has slots, not holes. And the don’t radiate directly out the center of the hub, but slant out the discs, all three of them.

changes include the two chromed sticking out from each of the engine, the one on the left being the low and the horn on the right being the tone. Combined, they’re and noticeable, both in terms of output and visual impact. there’s a flashing warning switch on the left handlebar that flashes all the signal together when it’s on.

Side reflectors are moved and the footpegs are larger this And don’t forget the 85 mph maximum that’s every bit as silly, on the as it is on any other 130 mph motorcycle.

Some on the Eleven haven’t been The original Eleven had a supple that was high on comfort, but the machine wallowy when it was Last year’s Special a revised suspension with air leading axle forks and damping shocks.

The forks and aren’t changed on the 1980 Special. The Special still has mufflers, nicely tucked in and quiet. There’s the same 4 gas tank with the same black paint and the same hinged gas cap on it.

The instruments, aside the 85 mph speedometer, are the same and so are the instrument including the low gas warning light. The seat on the Special, unlike stepped seats, is surprisingly for either one or two riders. The wide make a comfy platform, like flootboards, while for spirited cornering and not transmitting

Then there’s the suspension. as good a touring bike as has ever been offered. But on the wrong bike. Most that sell touring don’t offer equipment for We’ve had a 750 Special around the for nearly a year now and the biggest we’ve had is finding accessories to fit it.

The suspension should be on the standard The air-assisted forks soak up big and small while controlling the half of the bike’s 584 lb. weight. For riding the minimum 6 p.s.i. air is fine.

The only uses for which pressure would be needed be if a heavy fairing were or the bike were to be used for speeding on winding roads. use is encouraged by the Special’s styling. suspension adjustment is much the

For normal use the minimum damping the best ride, while the damping settings enable the to remain stable with loads or when ridden

What the owner needs to though, is that one man’s are another man’s discomfort. The rider dials in control for pack and the weekend cruiser back and says Hey, bike is oversprung and underdamped.

And it for that application. What rider must do is tune to himself and the conditions of the moment.

The of beefy shocks. 16-in. tire and a reduction in weight the standard Eleven gives the the highest load carrying of any motorcycle Cycle World has Cleaner styling means gingerbread which means weight. About 20 lb. less than the standard Eleven at 584 lb. the Special is lighter, for instance, the Suzuki GS850. It’s over 100 lb. lighter than the KZ1300.

With a half of fuel, the Special has a load of over 500 lb.

Even with year’s engine changes, the is an enormously strong motorcycle. Yamaha claimed the Eleven had 95 Now, it’s probably 90 bhp. Quarter mile aren’t in the 11’s anymore. speed is down 4 mph from the Eleven.

What the engine has with the bigger valves it has with the leaner jetting. Of a power hungry owner change carb jetting much difficulty. The changes, in states, would violate air pollution tampering rules, but the raw is still there.

Engine performance has suffered in ways than straight too. In order to start the from cold the choke has to be on and the throttle cracked a quarter of a Our test bike wouldn’t with just the choke out when cold. The bike has to run for several minutes with the on.

Usually the choke would be full on for a mile then halfway in for another mile and it would run, sort of, choke. Still, there was a just off idle that was and required revving the big motor just to get rolling from a

A quarter mile time of sec. at 109.48 mph is no slouch. just that we expect new to be faster than last model. That is, until emission standards came Fortunately the emission standards reached their most level in 1980.

There are no for tighter restrictions next or the year after, on motorcycles, so next year’s Yamaha can again run better as the engineers more about the motors.

stylish slashes in the brake haven’t hurt the Eleven’s ability. With distances of 33 ft. to from 30 mph and 134 ft. from 60 mph, the brakes are powerful enough. when the discs heated up the brakes could lock up during maximum use.

the brakes work better in wet or not is unknown due to a lack of rain the bike was tested. Yamaha’s discs used in 1979 better than average in wet stopping with little time needed.

Staff comments were on several of the Special’s special Some testers feel the flashers are a worthwhile safety while others have no use for Some like the self-canceling signals and the low fuel warning others don’t.

The Eleven, in standard or Special trim is not a for the spartan. Yamaha makes the 650 for people who like kick and vibration. The Eleven is for those who all the sophistication a motorcycle can offer.

The motor is as smooth as any Six. Its size and state of tune a rider tire-destroying power at any speed over 3000 The clutch pull is lighter the clutch on Yamaha’s own 750. The which shifts with a clank is positive, but needs shifts from strong In designing the Eleven.

Yamaha get carried away with overkill. Yes, there are overhead cams and an inductive ignition, but these things complications to the rider. Basic on the Eleven consists of changing oil and It’s not liquid cooled and the can be easily changed without the gas tank.

The eight valves are set shims and adjusting the valves a stock of shims and a valve compressor tool, not usually of the home mechanic’s tool Because of the Eleven’s shaft it hasn’t been used in competition, but the motor is proven Jim Bernard just rode the Ron Teson/R.C.

Engineering Top Fuel uses a stock Yamaha and main bearings in its super-charged — to a new E.T. record a 7.57 sec. at 184.95 mph at Indianapolis.

For stock XS11s, the clutch is the weakest link of the machine. half a dozen runs at the the clutch in the test bike was too much to continue testing. it cooled off and was adjusted, it returned to performance.

Going into its year, the biggest Yamaha is well. It’s still the touring machine we’ve It’s still a magnificent Unfortunately. it’s not better the original XS Eleven.

Performance is In day-to-day operation the machine is convenient to use due to its state of tune. The has added a refined suspension, but the merits of the suspension can’t be because the Special doesn’t itself to either sport or use.

Finally, there’s The Special is a good looking It’s clean and everything is just right. But again, year’s Special isn’t as looking as last year’s

The separate tail and license lights detract from the styling. The cast aluminum bar around the seat is attractive, but the machine, with more and bigger reflectors on the side, ever so slightly more than the original Special.

when the Specials are the standard Yamaha can reinvent the Special and new, simpler styling less excess.


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