New Guy with R100R

[97oilhead]

Originally Posted by red bud

i am looking for a easy on&off passenger backrest if anybody knows of one

I find the Corbin works good one bolt and its off. Have you looked for a used Corbin backrest for your seat?

[garyinalt]

Just thought I would add that the fairing is actually made by Parabellum. They are still available and mount easily. The only drawback is there is not enough room for instruments like the 'S' fairing from BMW.

[97oilhead]

Originally Posted by garyinalt

Just thought I would add that the fairing is actually made by Parabellum. They are still available and mount easily. The only drawback is there is not enough room for instruments like the 'S' fairing from BMW.

The Parabellum Scout on the '84 R100S wannabe, I had had the gauges and ignition mounted. Maybe the styling has changes a bit, but the front looks exactly the same. For some reason I have offended the Airhead gods and am not longer able to attach images.

[disston]

Originally Posted by 97oilhead

The Parabellum Scout on the '84 R100S wannabe, I had had the gauges and ignition mounted. Maybe the styling has changes a bit, but the front looks exactly the same. For some reason I have offended the Airhead gods and am not longer able to attach images.

You have to host your own images because the old way used to much band width. Go to this thread and read how to post images.

http://www.advrider.com/forums/showthread.php?t=919

[red bud]

Originally Posted by 97oilhead

I find the Corbin works good one bolt and its off. Have you looked for a used Corbin backrest for your seat?

now has a russell on it, that's why i'm needing the backrest

[jackd]

Originally Posted by backfill

I am new here. A while ago, I bought a 1992 R100R with 46,000 miles that had been sitting for about 6 years. It came with BMW hard bags, a sargent seat as well as the stock seat, a S-type fairing with the low and a higher screen, low bars, and fork springs. I am assuming that the extra springs are the stock ones and that the ones in the forks have been replaced, but I am not sure how to tell. It also has two front disks, braided steel lines and heated grips which still work, front and rear fender extenders and fork leg covers. Although i have no history for the bike, i appears to have been well maintained.

Nice bike you got there. It's giving me inspiration to look for a low mileage late model R or a Mystic up in this area and throwing an 'S' fairing on it. Keep the pictures coming.

[Uncle Pollo]

I hate you

[lucky6600]

I am in the process of picking up one next week and wondering why the 92' R100R "only" has 60 HP as I was reading?

[nhmaf]

All the R100 bikes from the mid-late 80s until the end of the production had 'only' 60 HP - these were tuned to produce more torque at lower RPMs with the trade off of peak HP, which was generally at a higher RPM that few used anyways.
The late 80s/early90s bike, while lower in peak HP, are smoother running R100 engines that the late70s/early 80s engines. I wish I had my '88 R100RT again. My 1978 R100/7 isn't a bad bike, but it definitely isn't quite as smooth on the highway, though it is properly tuned up.

[97oilhead]

Originally Posted by lucky6600

I am in the process of picking up one next week and wondering why the 92' R100R "only" has 60 HP as I was reading?

My 2000 R1200C only has 61 HP, but a lot more torque than my R100R.

The R100R is a great Airhead you will love it

[lucky6600]

Comparing to other 980cc engine, how did BMW actually do to detune the engine to make it smoother?
Especially with the same engine block, pistons and 40 mm Bing. Only thing that I could think of would be the more fancy but more restricted exhaust to meet the emission.

[Airhead Wrangler]

Originally Posted by lucky6600

Comparing to other 980cc engine, how did BMW actually do to detune the engine to make it smoother?
Especially with the same engine block, pistons and 40 mm Bing. Only thing that I could think of would be the more fancy but more restricted exhaust to meet the emission.

The r100r has 32mm bings, not 40s. The pistons are not the same as earlier higher output R100s. They have a lower compression ratio of 8.5:1 compared to 9.5:1 in the higher output motors. The heads also changed from large port/valve in the in earlier models to smaller ports and valves in the later models. The exhaust doesn't do anything to meet emissions. There's no cat. Jetting also got leaner from earlier to later models.

[lucky6600]

Originally Posted by Airhead Wrangler

The r100r has 32mm bings, not 40s. The pistons are not the same as earlier higher output R100s. They have a lower compression ratio of 8.5:1 compared to 9.5:1 in the higher output motors. The heads also changed from large port/valve in the in earlier models to smaller ports and valves in the later models. The exhaust doesn't do anything to meet emissions. There's no cat. Jetting also got leaner from earlier to later models.

According to this, it has 40 mm and the 2 into 1 exhaust has a cat box under though?

http://www.motorcyclespecs.co.za/mod...r100r%2092.htm

[Airhead Wrangler]

Originally Posted by lucky6600

According to this, it has 40 mm and the 2 into 1 exhaust has a cat box under though?

http://www.motorcyclespecs.co.za/mod...r100r%2092.htm

That's a South African website. The rest of the world got 40mm bings on r100 models up through '95, but bikes built for the US market stopped getting them in '84. That collector box is only to increase exhaust system volume (volume as in cubic ____s, not noise level) for better running and has no catalytic converter function to it, despite people commonly referring to it as a cat.

[lucky6600]

Originally Posted by Airhead Wrangler

That's a South African website. The rest of the world got 40mm bings on r100 models up through '95, but bikes built for the US market stopped getting them in '84. That collector box is only to increase exhaust system volume (volume as in cubic ____s, not noise level) for better running and has no catalytic converter function to it, despite people commonly referring to it as a cat.

Love the fact that US market always receives extra care.