92KK 84WW Olaf
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Number of posts : 7926
There are many other things that can cause running rich or make it feel like its running rich so go with what Laitch has posted to narrow it down.
Bad fuel pressure regulator.
Broken vacuum pipes [early Ks with bolted tanks have two]
Broken crankcase pipe [ Z pipe] can make if feel lik its running rich.
Bad MAF [Air Flow Meter]
Bad air filter [rare]
Bad injectors [one or more stuck open or sticking]
Bad electrical connections.
I now regard vacuum pipes, vacuum caps, Z pipe as service items and dont leave them in more than 3 years. They are cheap and easy enough to replace but really mess things up when they go wrong.
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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 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