92KK 84WW Olaf
Life time member
Number of posts : 7954
A few things will come up but I am not the right one for it.
Load shed relay.
Starter relay.
Starter motor brushes/cleaning it.
All easy to check. If all the lights etc go out when you press the starter than that to me suggests load shed relay is working properly, its supposed to disconnect them all. Starter relay worth a check and so are the earths. One above the gear lever, some under the petrol tank, easy to get at.
I had issues like yours, so I cleaned out the starter motor and got it like new. Easy to get out and to sort and its worth doing anyway.
The ICU up at the headstock turned out to be my problem. I got a replacement from Motorworks for £50 and it cured the problem. However it could have been a dodgy connector to the ICU as opposed to the ICU itself. When I got the replacement I cleaned all the connectors until they were nice and shiny and connected it up, problem finally solved. So its worth taking out ICU and cleaning up the connectors but be gentle.
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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