BMW K bikes (Bricks)


You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   Greetings from a new UK member Empty Greetings from a new UK member Sun Apr 07, 2024 4:05 am

Mini Hatchet

Mini Hatchet
New member
New member
Hello All,

I found my way to your forum via a Grinnall Scorpion user group. 
I have a K1 powered Grinnall Scorpion 3 that I assembled back in 1997 (before the internet was such a big thing), used it a bit then struggled with several nuisance issues for which it was difficult to find good information & guidance, then work & family took over my life and the Scorpion languished in my garage until my son motivated me to get it back on the road last year. 
I realised then that the internet is a near-perfect resource for all of those hints & tips for solving issues with automotive gems that are long past end of production.  
I'm hoping to benefit from the wealth of knowledge here about the K Series engines and related peripherals used in the Scorpion (speedo calibration is one of my next tasks), and engage in some discussions - perhaps I can contribute a little based on my >20 years experience as a a gasoline engine management system engineer (cars only, though...) in one global vehicle manufacturer & one Japanese global Tier 1 supplier. 

Looking forward to engaging with the community...

    

2Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 07, 2024 5:03 am

Glyn

Glyn
active member
active member
Welcome MIini Hatchet. Your machine sounds interesting. I didn't know that Grinnal made a trike using the K engine. Many years ago I sold Grinnal the BMW C1200 Cruiser I then owned which they converted to a trike. I'm interested in a trike now as I'm suffering from age issues. It may not be your cheapest solution but I've fitted an Acewell after market Speedo unit (I can hear a loud sigh from the purists on this site) that works a treat on all functions on my K1100. Nice retro styling in my opinion. Can you show us any pics of your trike?

    

3Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 07, 2024 6:46 am

Mini Hatchet

Mini Hatchet
New member
New member
Hello Glyn,

The Scorpion 3 is not a "trike" per se (which in my understanding usually refers to single front wheel, two at the back, at least in Grinnall's case).
However, it is classed a a tricycle, having a space frame body with two front wheels and the K series powertrain complete (engine, transmission, prop shaft & final drive) at the back.  You can see some pictures and information on the Wikipedia page: https://en.wikipedia.org/wiki/Grinnall_Scorpion_III

    

4Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 07, 2024 7:10 am

92KK 84WW Olaf

avatar
Life time member
Life time member
I have seen a few Scorpions, there are a few of them over here too and one quite near me.

Lovely motors, in most cases quite easy to work on.

I wonder though how it got to be K1 powered, an expensive route seeing as the K1100 was also a fit and so was the 16 valve K100 engine which is same as the K1 anyway.

As for the speedo, you can use K1/K100/K1100 unit, the speed sensor is on the rear final drive. All standard K parts.

They can be recalibrated depending on your rear wheel diameter. I am not sure what the original rear wheel size was on K1, but it would be either 17 or more likely 18 inch. At a guess I am thinking 160/60/18 but you will need others to verify. The K1100 used the same speedo units whether the rear was 160/60/18 or 140/80/17 as the rolling diameters were actually quite close. The plastic nylon gears inside do go wrong but there are fixes for them.



Last edited by 92KK 84WW Olaf on Sun Apr 07, 2024 10:14 am; edited 1 time in total


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

5Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 07, 2024 7:37 am

Dai

Dai
Life time member
Life time member
Greetings from a new UK member 177912 I'm pretty sure I've seen the K100 version and it's still an inline fitting. Ah! - Here we go.

https://tricyclecars.1fr1.net/t2186-grinnall-k100-bmw-linas-montlhery-septembre-2017


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

6Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 07, 2024 2:27 pm

bad boy

bad boy
Life time member
Life time member
hello Mini Hatchet
Greetings from a new UK member 177912


__________________________________________________
Cheerz, David

Greetings from a new UK member 9438-010

____________________________________________________________________________
1997 Peraves Super Ecomobile: a Kevlar reinforced monocoque with outrigger wheels, seating two.
K100 fork, monolever, headlight, indicators, K1100RS gearbox and K1200RS 589 engine, rear wheel
    

7Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 07, 2024 4:08 pm

grosbeak

grosbeak
Silver member
Silver member
Welcome to the forum!


__________________________________________________
1992 BMW K75S 0212025, 1999 Suzuki Bandit 1200 2100162
    

8Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Mon Apr 08, 2024 9:01 am

fishboy316

fishboy316
Life time member
Life time member
Hello!

    

9Back to top Go down   Greetings from a new UK member Empty Follow-up - photos Mon Apr 15, 2024 12:01 pm

Mini Hatchet

Mini Hatchet
New member
New member
I found the forum instructions on how to share photos, so I thought I would show you my Grinnall Scorpion...
 
Greetings from a new UK member 20230610  Greetings from a new UK member 20230611

    

10Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Mon Apr 15, 2024 12:44 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
I can see how that'd put a grin on all's face.
Surprised


__________________________________________________
History is a vast early warning system ~Norman Cousins - Political Journo, Editor, Author & World Peace Advocate, 1915 - 1990 - Wikipedia
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT. Projects: 1993 & '96 K1100RS, & the 2nd '98 K1200RS
    

11Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Mon Apr 15, 2024 12:48 pm

Mini Hatchet

Mini Hatchet
New member
New member
Two Wheels Better wrote:I can see how that'd put a grin on all's face.
Surprised
Laughing
Pun-tastic!

    

12Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Mon Apr 15, 2024 4:09 pm

duck

duck
Life time member
Life time member
Interesting that it's made from a K1 since the K100RS4V is the same bike under the Tupperware and cost less.

But the yellow K1 drive train looks great with blue body paint and a K1 does have taller final drive gearing than a K100RS4V. (K1 is 2.75, K100RS4V is 2.82)

Very nice road toy! cheers


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

13Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Mon Apr 15, 2024 5:50 pm

Dai

Dai
Life time member
Life time member
Big thumb


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

14Back to top Go down   Greetings from a new UK member Empty Re: Greetings from a new UK member Sun Apr 21, 2024 7:16 am

Bernie_K100

Bernie_K100
Platinum member
Platinum member
Hi,

Greetings from a new UK member 177912 to our community!


Bernie

    

Sponsored content


    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum