92KK 84WW Olaf
Life time member
Number of posts : 7953
If it starts with the original speedometer then the K is working.
To use a different one you must make some small wiring changes so that your fuel pump will get signal and so your alternator will charge the battery, but you know it works so that's good. I don't have the answer here but there are quite a few who have installed different speedometer or head units. You will need to post up exactly what one you are trying to use and someone will have an answer.
If the cold worries you then you can move to Ireland...we ride all year.
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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 51,800 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